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<strong>Characterization</strong> <strong>of</strong><br />

<strong>Maize</strong> <strong>Germplasm</strong><br />

<strong>Grown</strong> <strong>in</strong><br />

<strong>Eastern</strong> <strong>and</strong> Southern Africa<br />

Results <strong>of</strong>the 2004 Regional Trials Coord<strong>in</strong>ated by CIMMYT


The International <strong>Maize</strong> <strong>and</strong> Wheat Improvement Center (CIMMYT) is an <strong>in</strong>ternationally<br />

funded, non-pr<strong>of</strong>it scientific research <strong>and</strong> tra<strong>in</strong><strong>in</strong>g organization. Headquartered <strong>in</strong> Mexico, the<br />

Center works with agricultural research <strong>in</strong>stitutions worldwide to improve the productivity <strong>and</strong><br />

susta<strong>in</strong>ability <strong>of</strong> maize <strong>and</strong> wheat systems for resource-poor farmers <strong>in</strong> develop<strong>in</strong>g countries. It<br />

is one <strong>of</strong> 16 similar centers supported by the Consultative Group on International Agricultural<br />

Research (CGIAR). The CGIAR comprises over 50 partner countries, <strong>in</strong>ternational <strong>and</strong> regional<br />

organizations, <strong>and</strong> private foundations. It is co-sponsored by the Food <strong>and</strong> Agriculture<br />

Organization (FAO) <strong>of</strong> the United Nations, the International Bank for Reconstruction <strong>and</strong><br />

Development (World Bank), the United Nations Development Programme (UNDP), <strong>and</strong> the<br />

United Nations Environment Programme (UNEP).<br />

Contact Information: CIMMYT-Zimbabwe, P.O. Box MP163, Harare, Zimbabwe. Phone: +263-4­<br />

301807 or 369120; Fax:+263-4-301327; e-mail: cimmyt-zimbabwe@cgiar.org<br />

Acknowledgements: These trials were supported by the collaborators listed <strong>in</strong> Section 4, the Swiss<br />

Agency for Development <strong>and</strong> Cooperation (SDC), the Department for International Development<br />

(DFID), <strong>and</strong> the Rockefeller Foundation.<br />

The help rendered by S. Chisoro <strong>in</strong> the preparation <strong>of</strong> this publication is acknowledged.<br />

Correct Citation: Vivek B., M. Banziger <strong>and</strong> K.Y. Pixley. 2005. <strong>Characterization</strong> <strong>of</strong>maize germplasm<br />

grown <strong>in</strong> eastern <strong>and</strong> southern Africa: Results <strong>of</strong> the 2004 regional trials coord<strong>in</strong>ated by CIMMYT.<br />

Harare, Zimbabwe. CIMMYT. 68 pp.<br />

Accuracy <strong>of</strong> <strong>in</strong>formation: The <strong>in</strong>formation <strong>in</strong> this publication is based on results available at the<br />

time <strong>of</strong> publication. This does not exclude that the germplasm may perform differently if grown<br />

at other sites, or under different conditions.<br />

Plant breeders' rights: <strong>Germplasm</strong> developed by CIMMYT is made freely available for any<br />

agricultural research or breed<strong>in</strong>g purposes. Prior to the release, commercialization, or application<br />

for any form <strong>of</strong> IPR on CIMMYT germplasm or related <strong>in</strong>formation, written permission from<br />

CIMMYT must be obta<strong>in</strong>ed. <strong>Germplasm</strong> developed by <strong>in</strong>stitutions other than CIMMYT (private<br />

seed companies, National Agricultural Research Programs) is subject to restrictions imposed by<br />

those <strong>in</strong>stitutions on their germplasm. Evaluation <strong>of</strong> germplasm by CIMMYT does not imply<br />

endorsement or recommendation.


Contents<br />

<strong>Characterization</strong> <strong>of</strong> <strong>Maize</strong> <strong>Germplasm</strong> <strong>Grown</strong> i<br />

<strong>Eastern</strong> <strong>and</strong> Southern Africa<br />

Results <strong>of</strong> the 2004 Regional Trials Coord<strong>in</strong>ated by CIMlvlYT<br />

1. Introduction<br />

<strong>Maize</strong> germplasm 1<br />

Trial management 1<br />

Data analysis 1<br />

Summary tables 2<br />

Individual site results 2<br />

How the results can be used 2<br />

2. Descriptions <strong>of</strong> Traits Recorded 3<br />

3. Sites <strong>and</strong> Local Checks 5<br />

4. Collaborators 12<br />

5. Summary Results<br />

Early Matur<strong>in</strong>g Populations (EPOP04) 16<br />

Intermediate <strong>and</strong> Late Matur<strong>in</strong>g Populations (ILPOP04) 18<br />

Early <strong>and</strong> Intermediate Matur<strong>in</strong>g Hybrids (EIHYB04) 20<br />

Intermediate <strong>and</strong> Late Matur<strong>in</strong>g hybrids (ILHYB04) 22<br />

Quality prote<strong>in</strong> maize (QPM) hybrids (QHYB04) 24<br />

6. Individual Site Results<br />

EPOP04 26<br />

ILPOP04 34<br />

EIHYB04 43<br />

ILHYB04 ..; 51<br />

QHYB04 63


1. lntroduction<br />

<strong>Characterization</strong> <strong>of</strong> <strong>Maize</strong> <strong>Germplasm</strong> <strong>Grown</strong> <strong>in</strong><br />

<strong>Eastern</strong> <strong>and</strong> Southern Africa<br />

Results <strong>of</strong> the 2004 Regional Trials Coord<strong>in</strong>ated by CIMMYT<br />

The overall aim <strong>of</strong> the regional trials is to foster the availability <strong>and</strong> distribution <strong>of</strong> quality seed <strong>of</strong> the very best<br />

maize cultivars-those that are high yield<strong>in</strong>g not only under optimal conditions, but also under the stresses<br />

present <strong>in</strong> farmers' fields.<br />

<strong>Maize</strong> germplasm<br />

The 2004 regional trials to characterize maize germplasm grown <strong>in</strong> eastern <strong>and</strong> southern Africa evaluated elite<br />

pre-release <strong>and</strong> released maize germplasm supplied by CIMMYT, national agricultural research programs, <strong>and</strong><br />

private seed companies from southern Africa. CIMMYT received the germplasm, grouped it accord<strong>in</strong>g to vigor<br />

<strong>and</strong> maturity, <strong>and</strong> formed five replicated trials, namely<br />

• EPOP04: early to <strong>in</strong>termediate matur<strong>in</strong>g open-poll<strong>in</strong>ated varieties (OPVs)<br />

• ILPOP04: <strong>in</strong>termediate to late matur<strong>in</strong>g OPVs<br />

• EIHYB04: early to <strong>in</strong>termediate matur<strong>in</strong>g hybrids<br />

• ILHYB04: <strong>in</strong>termediate to late matur<strong>in</strong>g hybrids<br />

• QHYB04: quality prote<strong>in</strong> maize (QPM) hybrids<br />

Each trial had an alpha (0,1) lattice design with three replicates.<br />

Trial management<br />

The trials were grown by CIMMYT, national agricultural research programs, private seed companies <strong>and</strong> nongovernmental<br />

organizations <strong>in</strong> eastern <strong>and</strong> southern Africa. Collaborators were encouraged to grow the trials<br />

under different conditions:<br />

• Well-fertilized/ra<strong>in</strong>-fed conditions: trials were grown us<strong>in</strong>g optimal site-specific agronomic practices.<br />

• Managed nitrogen stress: trials were grown <strong>in</strong> fields that had been depleted <strong>of</strong> nitrogen by grow<strong>in</strong>g<br />

unfertilized, non-legum<strong>in</strong>ous crops for several seasons, remov<strong>in</strong>g the crop biomass after each season.<br />

Nitrogen fertilization to the trials was designed so that yields under managed N stress averaged 20-35%<br />

those <strong>of</strong> a well-fertilized maize crop at that site.<br />

• Managed drought stress: trials were grown dur<strong>in</strong>g a ra<strong>in</strong>-free period, with irrigation applied at the<br />

beg<strong>in</strong>n<strong>in</strong>g <strong>of</strong> the season to establish a good plant st<strong>and</strong>. Afterwards, irrigation was withheld so that the<br />

crop suffered drought stress dur<strong>in</strong>g flower<strong>in</strong>g <strong>and</strong> gra<strong>in</strong>-fill<strong>in</strong>g, result<strong>in</strong>g <strong>in</strong> average yields <strong>of</strong> about 1-3<br />

t/ha.<br />

• Managed low pH stress: trials were grown <strong>in</strong> fields with high alum<strong>in</strong>um saturation (desirably = 60%)<br />

<strong>and</strong>/ or low amounts <strong>of</strong> plant-available phosphorus (desirably 3-4 ppm P; i.e. 20-25% <strong>of</strong> the recommended<br />

levels). The objective was to achieve maize yields that were 50-65% below the optimal maize yield at the<br />

same site.<br />

• Artificial <strong>in</strong>oculation/<strong>in</strong>festation <strong>of</strong> biotic stress factors: trials were grown under artificial <strong>in</strong>oculation/<br />

<strong>in</strong>festation with leaf diseases, stem borers, <strong>and</strong> maize gra<strong>in</strong> weevils.<br />

A complete list <strong>of</strong> the sites can be found <strong>in</strong> Section 3.<br />

Data analysis<br />

In each Table, entries are grouped by anthesis date <strong>and</strong> sorted accord<strong>in</strong>g to the average rank for yield across all<br />

sites. With<strong>in</strong> each maturity group, the best rank<strong>in</strong>g entries are listed at the top.<br />

1


Seed-distribut<strong>in</strong>g agencies<br />

• Use data from Regional Trials (available from CIMMYT-Zimbabwe) <strong>and</strong> National <strong>Maize</strong> Evaluation<br />

Trials (available from National Agricultural Research Programs <strong>of</strong> <strong>in</strong>dividual countries) for mak<strong>in</strong>g<br />

decisions on which seed to distribute to farmers.<br />

• Distribute quality seed <strong>of</strong> the very best stress-tolerant, responsive hybrids <strong>and</strong> OPVs that are currently<br />

available.<br />

2. Descriptions <strong>of</strong> TrQits Recorded<br />

ReI. GY<br />

Rank Avg.<br />

Rank Stdev.<br />

Gra<strong>in</strong> yield<br />

Anthesis date<br />

Plant Height<br />

Ear Height<br />

Ear position<br />

Root Lodg<strong>in</strong>g<br />

Stem Lodg<strong>in</strong>g<br />

Husk Cover<br />

Ear Rot<br />

GLS<br />

P. sorghi<br />

E. turcicum<br />

H. maydis<br />

DM<br />

Relative gra<strong>in</strong> yield expressed as percentage <strong>of</strong> the mean gra<strong>in</strong> yield <strong>of</strong> the trial. Values<br />

above 100% <strong>in</strong>dicate above-average performance; values below 100% <strong>in</strong>dicate belowaverage<br />

performance.<br />

Average rank for gra<strong>in</strong> yield across all trials. Small values <strong>in</strong>dicate superior<br />

performance; large values <strong>in</strong>dicate <strong>in</strong>ferior performance.<br />

St<strong>and</strong>ard deviation <strong>of</strong> rank for gra<strong>in</strong> yield across all trials. Small values <strong>in</strong>dicate stable<br />

performance; large values <strong>in</strong>dicate variable performance.<br />

Shelled gra<strong>in</strong> weight per plot adjusted to 12.5% gra<strong>in</strong> moisture <strong>and</strong> converted to tons<br />

per hectare.<br />

Measured as number <strong>of</strong> days after plant<strong>in</strong>g when 50% <strong>of</strong> the plants shed pollen.<br />

Measured as height between the base <strong>of</strong> a plant to the <strong>in</strong>sertion <strong>of</strong> the first tassel branch<br />

<strong>of</strong> the same plant.<br />

Measured as height between the base <strong>of</strong> a plant to the <strong>in</strong>sertion <strong>of</strong> the top ear <strong>of</strong> the<br />

same plant.<br />

A ratio <strong>of</strong> ear height to plant height. Small values <strong>in</strong>dicate low ear position; large values<br />

<strong>in</strong>dicate high ear position.<br />

Measured as percentage <strong>of</strong> plants that show root lodg<strong>in</strong>g, i.e. those sterns that are<br />

<strong>in</strong>cl<strong>in</strong><strong>in</strong>g by more than 45°.<br />

Measured as percentage <strong>of</strong> plants that show stem lodg<strong>in</strong>g, i.e. those stems that are<br />

broken below the ear.<br />

Measured as percentage <strong>of</strong> plants with ears that are not completely covered by the<br />

husks.<br />

Percentage <strong>of</strong> ears that are rotten.<br />

Score for the severity <strong>of</strong> gray leaf spot (Cercospora zeae-maydis) symptoms rated on a<br />

scale from 1 (= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

Score for the severity <strong>of</strong> common rust (Pucc<strong>in</strong>ia sorghi) symptoms rated on a scale from 1<br />

(= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

Score for the severity <strong>of</strong> northern leaf blight (Exserohilum turcicum) symptoms rated on a<br />

scale from 1 (= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

Score for the severity <strong>of</strong> maydis leaf blight (Helm<strong>in</strong>thosporium maydis) symptoms rated<br />

on a scale from 1 (= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

Score for the severity <strong>of</strong> downy mildew (Pernosclerospora sp.) symptoms rated on a scale<br />

from 1 (= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

3


PLS<br />

Borer damage<br />

Busseola larvae<br />

Chilo<br />

Leaf toughness<br />

Gra<strong>in</strong> weevil<br />

(Total Fl)<br />

Gra<strong>in</strong> weevil<br />

(Wt loss)<br />

Gra<strong>in</strong> texture<br />

Gra<strong>in</strong> moisture<br />

ASI<br />

EPP<br />

Leaf roll<strong>in</strong>g<br />

Senescence<br />

QPM<br />

modification<br />

Score for the severity <strong>of</strong> Phaeosphaeria leaf spot (Phaeosphaeria maydis) symptoms rated on<br />

a scale from 1 (= clean, no <strong>in</strong>fection) to 5 (= severely diseased).<br />

Score for the severity <strong>of</strong> stem borer (Busseo/a <strong>and</strong> Chi/a) damage rated on a scale from 1<br />

(= clean, no damage) to 5 (= severe damage).<br />

Count <strong>of</strong> the number <strong>of</strong> Busseo/a larvae. Higher the number <strong>in</strong>dicates susceptibility.<br />

Score for the severity <strong>of</strong> Chilo parte/lus leaf damage rated on a scale from 1 (= no<br />

<strong>in</strong>festation) to 9 (= severely <strong>in</strong>fested).<br />

Force required to puncture leaves between ve<strong>in</strong>s as measured by the penetrometer.<br />

Genotypes with lower numbers tend to be susceptible to borers.<br />

Number <strong>of</strong> gra<strong>in</strong> weevils hatch<strong>in</strong>g <strong>and</strong> emerg<strong>in</strong>g from an <strong>in</strong>fested gra<strong>in</strong> sample with<strong>in</strong> a<br />

given period. Large values <strong>in</strong>dicate susceptibility to gra<strong>in</strong> weevils, small values <strong>in</strong>dicate<br />

partial resistance to gra<strong>in</strong> weevils.<br />

Loss <strong>of</strong> weight <strong>of</strong> the gra<strong>in</strong> samples caused by weevil feed<strong>in</strong>g dur<strong>in</strong>g a given period <strong>of</strong><br />

<strong>in</strong>cubation. Large values <strong>in</strong>dicate susceptibility to weevils.<br />

Rated on a scale from 1 (= fl<strong>in</strong>t) to 5 (=dent).<br />

Percent water content <strong>of</strong> gra<strong>in</strong> as measured at harvest.<br />

Anthesis-silk<strong>in</strong>g <strong>in</strong>terval. Determ<strong>in</strong>ed by (i) measur<strong>in</strong>g the number <strong>of</strong> days after<br />

plant<strong>in</strong>g when 50% <strong>of</strong> the plants shed pollen (anthesis date, AD) <strong>and</strong> show silks (silk<strong>in</strong>g<br />

date, SD), respectively, <strong>and</strong> (ii) calculat<strong>in</strong>g: ASI = SD - AD. If measured under drought<br />

or N stress, small or negative values <strong>in</strong>dicate stress tolerance.<br />

Number <strong>of</strong> ears per plant. Counted as number <strong>of</strong> ears with at least one fully developed<br />

gra<strong>in</strong> divided by the number <strong>of</strong> harvested plants. An EPP <strong>of</strong> below 1.0 <strong>in</strong>dicates partial<br />

barreness, an EPP <strong>of</strong> above 1.0 <strong>in</strong>dicates partial prolificacy. If taken under drought or N<br />

stress, values <strong>of</strong> greater or equal to 1.0 <strong>in</strong>dicate stress tolerance.<br />

Leaf roll<strong>in</strong>g score measured under drought stress on a scale from 1 (unrolled, turgid<br />

leaves, desirable) to 5 (severely rolled leaves, undesirable).<br />

Leaf senescence score on a scale from 1 to 10. Taken dur<strong>in</strong>g gra<strong>in</strong>-fill<strong>in</strong>g by estimat<strong>in</strong>g<br />

the percentage <strong>of</strong> dead leaf area <strong>and</strong> divid<strong>in</strong>g it by 10. If taken under drought or N<br />

stress, small scores <strong>in</strong>dicate stress tolerance.<br />

1 = 10% dead leaf area; 6 = 60% dead leaf area<br />

2 = 20% dead leaf area; 7 = 70% dead leaf area<br />

3 = 30% dead leaf area; 8 = 80% dead leaf area<br />

4 = 40% dead leaf area; 9 = 90% dead leaf area<br />

5 = 50% dead leaf area; 10 = 100% dead leaf area<br />

Score for the extent <strong>of</strong> modification (extent <strong>of</strong> opaqueness) <strong>of</strong> quality prote<strong>in</strong> maize<br />

(QPM) kernels rated on a scale from 1 (fully modified / normal look<strong>in</strong>g kernels) to 5<br />

(unmodified/opaque kernels) as evaluated on a light table.<br />

4


ILHYB04: Results <strong>of</strong> evaluation <strong>of</strong> <strong>in</strong>termediate to late matur<strong>in</strong>g hybrids from CIMMYT, Monsanto, Nelson Genetics, Pannar, Pioneer,<br />

Seed Co <strong>and</strong> Zamseed across 45 sites <strong>in</strong> eastern <strong>and</strong> southern Africa, 2003104. Table 6F<br />

Entry<br />

Aeroll<br />

Entr<strong>in</strong> with anthel;s date between 68 • 72 days<br />

3 CZH02018 115<br />

11<br />

2 CZH00026 117 II<br />

7 CZH03013 liS<br />

12<br />

25 CZHOJ030 114 13<br />

16 CZHOJ022 III<br />

15<br />

CZH99037 III<br />

16<br />

15 CZH03021 107<br />

17<br />

5 CZHOJ011 109 18<br />

9 CZHOJ015 108<br />

18<br />

17 CZHOJ023 109 19<br />

36 SC635 104 20<br />

8 CZH03014 104 20<br />

19 CZH03025 106<br />

21<br />

24 CZH03029 102<br />

21<br />

14 CZH03020 102 22<br />

13 CZH03019 104 23<br />

29 CZH01029 100 23<br />

II CZH03017 97<br />

23<br />

20 CZH03041 100 23<br />

CZH03012 100 24<br />

28 CZH01022 100 25<br />

CZH02023 99<br />

26<br />

12 CZH03018 99 26<br />

18 CZH03024 96<br />

27<br />

27 CZHOlO21 94<br />

28<br />

41 ZAM0I306 93<br />

28<br />

10 CZH03016 96<br />

29<br />

31 NG761 95<br />

29<br />

44 LOCAL CHECK 1 87<br />

29<br />

39 ZAM01301 89 30<br />

45 LOCAL CHECK 2 88<br />

31<br />

30 OKC8053 87<br />

31<br />

Maturity group avg 102 22<br />

Entries with anthnls date> 72 days<br />

37 02C4886 111<br />

15<br />

23 CZ;i03028 107<br />

17<br />

21 CZH03042 106 20<br />

26 CZH03031 103<br />

21<br />

38 00C5351 102 22<br />

32 ESX609 98<br />

23<br />

33 PHB30H83 90<br />

24<br />

35 se715 90 28<br />

22 CZH03027 95<br />

28<br />

34 PHB3OR73 87 30<br />

42 ZAMO 1304 86<br />

30<br />

43 ZAM0232I 86 32<br />

40 ZAM0230 I 79 36<br />

Malurity group a;og 95 25<br />

Mean<br />

100 23<br />

LSD (0,0$)<br />

P<br />

9 6<br />

M<strong>in</strong><br />

79 11<br />

Max<br />

117 36<br />

NumSlgniflcantSi1es<br />

33 33<br />

Mount Makulu Zam<br />

Mid Altitude Humid Warm (Zone A) - Gra<strong>in</strong> Yields<br />

Kalama Zim Zimiled Farm Zim Mbtllu'l'bulu Tan<br />

UkiriguN Tan<br />

RelGY<br />

Rank<br />

Gra<strong>in</strong>Yleld RankNo Gra<strong>in</strong>Yleld RankNo Gra<strong>in</strong>Yleld RankNo Gra<strong>in</strong>Yleld RankNo GralnYI.1d RankNo<br />

.' ,. StdO,v Vha Rank Vha Rank Vha Rank Vha Rank Vha Rank<br />

9<br />

8<br />

10<br />

12<br />

13<br />

11<br />

11<br />

12<br />

11<br />

10<br />

11<br />

12<br />

14<br />

11<br />

14<br />

11<br />

11<br />

11<br />

13<br />

14<br />

10<br />

10<br />

13<br />

12<br />

10<br />

14<br />

11<br />

12<br />

II<br />

11<br />

14<br />

\2<br />

14<br />

14<br />

14<br />

13<br />

15<br />

13<br />

8<br />

13<br />

13<br />

10<br />

10<br />

12<br />

12<br />

2<br />

8<br />

15<br />

33<br />

5.8<br />

6 I<br />

62<br />

6.3<br />

59<br />

52<br />

62<br />

64<br />

6.6<br />

41<br />

6 I<br />

6.2<br />

56<br />

56<br />

59<br />

5.4<br />

58<br />

4.5<br />

66<br />

5.4<br />

5.4<br />

50<br />

6.2<br />

60<br />

59<br />

58<br />

51<br />

58<br />

57<br />

63<br />

5.1<br />

47<br />

57<br />

6.2<br />

6.2<br />

62<br />

59<br />

54<br />

58<br />

53<br />

56<br />

54<br />

6.0<br />

51<br />

46<br />

54<br />

56<br />

5.70<br />

1.30<br />

os<br />

4.13<br />

6.63<br />

26<br />

23<br />

14<br />

12<br />

39<br />

16<br />

2<br />

45<br />

10<br />

22<br />

27<br />

24<br />

21<br />

31<br />

25<br />

44<br />

3<br />

29<br />

35<br />

38<br />

7<br />

6<br />

19<br />

18<br />

41<br />

15<br />

17<br />

II<br />

36<br />

42<br />

22<br />

13<br />

4<br />

8<br />

20<br />

37<br />

28<br />

40<br />

33<br />

30<br />

9<br />

34<br />

43<br />

32<br />

25<br />

23<br />

13<br />

45<br />

7.4<br />

87<br />

75<br />

7.0<br />

71<br />

76<br />

7.9<br />

6.0<br />

7.7<br />

62<br />

74<br />

69<br />

6.7<br />

61<br />

7.0<br />

5.7<br />

6.7<br />

7.5<br />

83<br />

7.0<br />

6.2<br />

47<br />

5.5<br />

70<br />

65<br />

64<br />

58<br />

65<br />

76<br />

7.4<br />

5.6<br />

52<br />

68<br />

87<br />

7.9<br />

7.5<br />

6.5<br />

9.7<br />

6.2<br />

7.3<br />

7.2<br />

59<br />

6.4<br />

52<br />

75<br />

6.5<br />

7 I<br />

6.87<br />

1.64<br />

4.74<br />

9.69<br />

54<br />

14<br />

13<br />

21<br />

19<br />

8<br />

6<br />

37<br />

7<br />

34<br />

16<br />

24<br />

26<br />

36<br />

23<br />

40<br />

25<br />

12<br />

20<br />

35<br />

45<br />

42<br />

22<br />

30<br />

32<br />

39<br />

29<br />

9<br />

15<br />

41<br />

44<br />

24<br />

10<br />

27<br />

33<br />

17<br />

18<br />

38<br />

31<br />

43<br />

11<br />

28<br />

20<br />

23<br />

13<br />

'1<br />

45<br />

9.6<br />

88<br />

8.7<br />

72<br />

84<br />

93<br />

6.0<br />

8.2<br />

83<br />

8.4<br />

80<br />

7.6<br />

8.2<br />

9.2<br />

61<br />

5.7<br />

84<br />

90<br />

7.6<br />

70<br />

68<br />

68<br />

62<br />

8.1<br />

82<br />

8.7<br />

7.9<br />

7.2<br />

8.1<br />

83<br />

70<br />

8.5<br />

7.9<br />

9.0<br />

66<br />

79<br />

96<br />

8.7<br />

9.7<br />

7.7<br />

90<br />

72<br />

74<br />

8.5<br />

86<br />

86<br />

8.3<br />

8.00<br />

2.0$<br />

5:71<br />

·9.68<br />

3<br />

9<br />

12<br />

35<br />

18<br />

44<br />

24<br />

21<br />

17<br />

27<br />

31<br />

22<br />

5<br />

43<br />

45<br />

19<br />

8<br />

32<br />

37<br />

40<br />

39<br />

42<br />

26<br />

23<br />

10<br />

28<br />

36<br />

25<br />

20<br />

38<br />

16<br />

25<br />

41<br />

29<br />

2<br />

11<br />

30<br />

6<br />

34<br />

33<br />

15<br />

13<br />

14<br />

18<br />

23<br />

13<br />

1<br />

45<br />

39<br />

36<br />

30<br />

28<br />

22<br />

21<br />

32<br />

33<br />

3.7<br />

29<br />

22<br />

24<br />

25<br />

32<br />

33<br />

32<br />

27<br />

29<br />

2.7<br />

2.8<br />

2.7<br />

36<br />

21<br />

23<br />

2.7<br />

28<br />

2.2<br />

28<br />

17<br />

2.0<br />

2.2<br />

2.1<br />

27<br />

22<br />

4.2<br />

32<br />

2.5<br />

2.8<br />

33<br />

25<br />

13<br />

23<br />

25<br />

31<br />

20<br />

30<br />

2.7<br />

2.73<br />

1.40<br />

ns<br />

1,32<br />

4.21<br />

14<br />

22<br />

34<br />

41<br />

II<br />

8<br />

3<br />

17<br />

37<br />

31<br />

30<br />

12<br />

10<br />

24<br />

16<br />

26<br />

20<br />

25<br />

40<br />

33<br />

23<br />

19<br />

35<br />

21<br />

44<br />

43<br />

36<br />

39<br />

23<br />

38<br />

9<br />

27<br />

18<br />

29<br />

45<br />

32<br />

28<br />

13<br />

42<br />

15<br />

23<br />

23<br />

13<br />

1<br />

45<br />

6.1<br />

5.7<br />

73<br />

5.9<br />

50<br />

5.3<br />

56<br />

6.4<br />

51<br />

36<br />

62<br />

5.4<br />

4.8<br />

4.6<br />

56<br />

5.4<br />

54<br />

61<br />

49<br />

54<br />

56<br />

56<br />

4.5<br />

59<br />

5.0<br />

5.4<br />

4.6<br />

4.8<br />

29<br />

5.0<br />

5.0<br />

5.7<br />

53<br />

5.6<br />

6.0<br />

6.7<br />

5.9<br />

58<br />

51<br />

52<br />

56<br />

48<br />

4.4<br />

46<br />

51<br />

4.8<br />

5.4<br />

5.33<br />

1:21<br />

2.93<br />

7.27<br />

5<br />

12<br />

8<br />

32<br />

25<br />

17<br />

3<br />

27<br />

44<br />

4<br />

21<br />

38<br />

41<br />

15<br />

23<br />

20<br />

6<br />

34<br />

22<br />

19<br />

18<br />

42<br />

10<br />

33<br />

24<br />

40<br />

37<br />

45<br />

31<br />

30<br />

13<br />

23<br />

16<br />

11<br />

28<br />

26<br />

14<br />

35<br />

43<br />

39<br />

29<br />

35<br />

23<br />

23<br />

13


ILHYB04: Results <strong>of</strong> evaluation <strong>of</strong> <strong>in</strong>termediate to late matur<strong>in</strong>g hybrids from CIMMYT, Monsanto, Nelson Genetics, Pannar, Pioneer,<br />

Seed Co <strong>and</strong> Zamseed across 45 sites <strong>in</strong> eastern <strong>and</strong> southern Africa, 2003/04. Table 6G<br />

Entry Name<br />

RelGY<br />

Acrtl..<br />

Rank<br />

Entries with anthnls date between 68 • 72 days<br />

C2H02018 115 II<br />

C2HOOO26 117 11<br />

CZH03013 115 12 10<br />

25 C2H03030 114 13<br />

16 C2H03022 III 15<br />

C2H99037 111 16 12<br />

15 C2H03021 107 17<br />

13<br />

5 C2H03011 109 18<br />

11<br />

9 C2HOJOl5 108 18<br />

11<br />

17 C2HOJ023 109 19 12<br />

36 SC635 104 20<br />

11<br />

8 C2H030 14 104 20<br />

19 C2H03025 106 21<br />

10<br />

24 CZH03029 102 21 \1<br />

14 CZH03020 102 22<br />

12<br />

13 C2H03019 104 23<br />

14<br />

29 C2HOI029 100 23<br />

11<br />

11 C2H03017 97 23 14<br />

20 CZH03041 100 23 II<br />

6 C2H03012 100 24 II<br />

28 C2HO 1022 100 25 \1<br />

CZH02023 99 26 13<br />

12 CZH03018 99 26<br />

14<br />

18 CZH03024 96 27<br />

10<br />

27 CZHOI021 94 28<br />

10<br />

41 ZAMO 1306 93 28 13<br />

10 CZH03016 96 29 12<br />

31 NG761 95 29 10<br />

44 LOCAL CHECK 1 87 29 14<br />

39 ZAMOl301 89 30 II<br />

45 LOCAL CHECK 2 88 31<br />

12<br />

30 DKC8053 87 31<br />

11<br />

Matulily group avg 102 22<br />

11<br />

Entries with anthesls date> 72 days<br />

37 02C4886 III 15 14<br />

23 C2HOJ028 107 17 12<br />

21 CZH03042 106 20<br />

14<br />

26 C2H03031 103 21<br />

14<br />

38 OOC5351 102 22<br />

14<br />

32 ESX609 98 23<br />

13<br />

33 PHB30H83 90 24 15<br />

35 $C715 90 28 13<br />

22 CZH03027 95 28<br />

34 PH830R73 87 30 13<br />

42 ZAM01304 86 30 13<br />

43 ZAfA0232I 86 32<br />

10<br />

40 ZAM02301 79 36<br />

10<br />

Matunly group IVl) 95 25<br />

12<br />

Meln<br />

100 23 12<br />

LSD (0.05)<br />

P<br />

9 6 2<br />

M<strong>in</strong><br />

79 11 8<br />

Max<br />

117 36 15<br />

NumSignifieantSiles 33 33 33<br />

Zone A • Yields Mid Altitude Humid Hot (Zone B) • Gra<strong>in</strong> Yields<br />

ART Farm Harare lim<br />

Aero.. Mlkoka Mal SUllundengl 10101 Angonll 10101<br />

Grl<strong>in</strong>Yield RankHo<br />

GralnYield RankNo GlllnYield RankNo Gra<strong>in</strong>Y/eld RankNo GraJnYleld RankNo<br />

SldOev lIha Rank lIha Rank Vl1a Raok lIha Rank til1a Rank<br />

91<br />

99<br />

10.4<br />

104<br />

84<br />

102<br />

102<br />

103<br />

100<br />

7.4<br />

11.9<br />

8.4<br />

91<br />

10.0<br />

83<br />

92<br />

95<br />

84<br />

9.5<br />

85<br />

7.9<br />

8.4<br />

71<br />

83<br />

75<br />

86<br />

84<br />

78<br />

103<br />

89<br />

11.0<br />

7.6<br />

9.1<br />

8.1<br />

120<br />

98<br />

8.5<br />

76<br />

11 2<br />

9.1<br />

103<br />

89<br />

75<br />

8.1<br />

93<br />

78<br />

91<br />

9.08<br />

1.93<br />

20<br />

14<br />

30<br />

II<br />

10<br />

12<br />

44<br />

2<br />

28<br />

21<br />

13<br />

33<br />

19<br />

17<br />

29<br />

16<br />

26<br />

37<br />

J2<br />

45<br />

34<br />

43<br />

25<br />

31<br />

38<br />

9<br />

24<br />

4<br />

40<br />

23<br />

36<br />

15<br />

27<br />

41<br />

3<br />

22<br />

23<br />

42<br />

35<br />

18<br />

39<br />

24<br />

23<br />

13<br />

7.11<br />

12.03 45<br />

67<br />

68<br />

66<br />

6.e<br />

7.0<br />

65<br />

63<br />

64<br />

6.3<br />

6.2<br />

6.1<br />

62<br />

6.2<br />

6.7<br />

6.2<br />

63<br />

6. ,<br />

5.6<br />

65<br />

6.1<br />

6.1<br />

5.4<br />

56<br />

5.7<br />

58<br />

4.9<br />

54<br />

55<br />

5.3<br />

4.9<br />

49<br />

54<br />

60<br />

64<br />

68<br />

59<br />

6 I<br />

59<br />

56<br />

5.8<br />

55<br />

5.7<br />

5.4<br />

50<br />

50<br />

37<br />

56<br />

5.89<br />

0.84<br />

3.66<br />

7.00<br />

55<br />

11<br />

13<br />

10<br />

19<br />

15<br />

15<br />

20<br />

22<br />

17<br />

21<br />

17<br />

18<br />

18<br />

20<br />

30<br />

12<br />

20<br />

20<br />

26<br />

29<br />

26<br />

28<br />

30<br />

35<br />

32<br />

34<br />

39<br />

39<br />

32<br />

22<br />

15<br />

24<br />

22<br />

25<br />

28<br />

20<br />

29<br />

29<br />

31<br />

30<br />

38<br />

45<br />

28<br />

23<br />

9<br />

6<br />

45<br />

9.1<br />

89<br />

88<br />

94<br />

94<br />

80<br />

96<br />

8.5<br />

88<br />

85<br />

83<br />

84<br />

85<br />

10.4<br />

78<br />

93<br />

79<br />

68<br />

8.5<br />

76<br />

76<br />

61<br />

76<br />

6.9<br />

8.3<br />

57<br />

7.2<br />

7.4<br />

82<br />

6.3<br />

72<br />

76<br />

81<br />

8.8<br />

9.4<br />

78<br />

87<br />

7.9<br />

7.2<br />

89<br />

66<br />

7.5<br />

66<br />

5 I<br />

7.2<br />

48<br />

7.4<br />

7.89<br />

1.65<br />

11<br />

3<br />

5<br />

22<br />

2<br />

17<br />

12<br />

14<br />

20<br />

18<br />

16<br />

1<br />

25<br />

6<br />

24<br />

38<br />

15<br />

30<br />

28<br />

42<br />

27<br />

37<br />

19<br />

43<br />

36<br />

32<br />

21<br />

41<br />

JJ<br />

29<br />

21<br />

10<br />

4<br />

26<br />

13<br />

23<br />

35<br />

9<br />

40<br />

31<br />

39<br />

44<br />

33<br />

45<br />

27<br />

23<br />

13<br />

4.82<br />

10,37 45<br />

26<br />

28<br />

2.8<br />

30<br />

26<br />

2.6<br />

26<br />

35<br />

29<br />

30<br />

2.6<br />

22<br />

29<br />

2.7<br />

35<br />

34<br />

2.5<br />

21<br />

33<br />

28<br />

34<br />

2.6<br />

4.0<br />

28<br />

2.7<br />

33<br />

2.2<br />

28<br />

2.0<br />

1.7<br />

30<br />

30<br />

2.8<br />

23<br />

2.5<br />

4.1<br />

32<br />

30<br />

20<br />

2.5<br />

27<br />

32<br />

24<br />

35<br />

29<br />

2.5<br />

28<br />

2.82<br />

1.62<br />

ns<br />

1.69<br />

4.11<br />

31<br />

24<br />

23<br />

16<br />

33<br />

32<br />

28<br />

5<br />

19<br />

14<br />

29<br />

40<br />

18<br />

27<br />

3<br />

6<br />

35<br />

42<br />

9<br />

21<br />

7<br />

30<br />

2<br />

22<br />

26<br />

8<br />

41<br />

20<br />

44<br />

45<br />

13<br />

12<br />

23<br />

39<br />

36<br />

II<br />

IS<br />

43<br />

34<br />

25<br />

10<br />

38<br />

4<br />

17<br />

37<br />

24<br />

23<br />

13<br />

1<br />

45<br />

73<br />

68<br />

62<br />

6.7<br />

6.6<br />

7.0<br />

50<br />

67<br />

69<br />

6.2<br />

6.7<br />

6.8<br />

64<br />

65<br />

6.4<br />

52<br />

66<br />

58<br />

67<br />

67<br />

66<br />

69<br />

59<br />

6.4<br />

60<br />

69<br />

58<br />

62<br />

54<br />

58<br />

52<br />

6.2<br />

6.3<br />

73<br />

67<br />

5.4<br />

5.9<br />

6.6<br />

67<br />

68<br />

62<br />

60<br />

61<br />

68<br />

52<br />

42<br />

61<br />

6.27<br />

1,.07<br />

4.19<br />

7.34<br />

8<br />

26<br />

12<br />

19<br />

3<br />

44<br />

13<br />

4<br />

27<br />

16<br />

9<br />

25<br />

22<br />

24<br />

43<br />

21<br />

38<br />

14<br />

17<br />

18<br />

6<br />

35<br />

23<br />

32<br />

5<br />

37<br />

29<br />

40<br />

36<br />

41<br />

28<br />

22<br />

15<br />

39<br />

34<br />

20<br />

11<br />

30<br />

33<br />

31<br />

10<br />

42<br />

45<br />

25<br />

23<br />

13


ILHYB04: Results <strong>of</strong> evaluation <strong>of</strong> <strong>in</strong>termediate to late matur<strong>in</strong>g hybrids from CIMMYT, Monsanto, Nelson Genetics, Pannar, Pioneer,<br />

Seed Co <strong>and</strong> Zamseed across 45 sites <strong>in</strong> eastern <strong>and</strong> southern Africa, 2003/04. Table 6L<br />

Nstress· Gra<strong>in</strong> Yields<br />

Entry N.me<br />

RelGY<br />

Aerot,<br />

R<strong>in</strong>k<br />

Entries with .nth..ia dale bltw.... 68 • 72 daY'<br />

3 CZH02018 115 11<br />

2 CZHOOO26 117 11 8<br />

7 CZH03013 115 12 10<br />

25 CZH03030 114 13 8<br />

16 CZH03022 111 15 9<br />

I CZH99037 III 16<br />

12<br />

15 CZH03021 107 17<br />

13<br />

5 CZH03011 109 18<br />

11<br />

9 CZH03015 108 18<br />

11<br />

17 CZH03023 109 19<br />

12<br />

J6 SC635 104 20<br />

11<br />

8 CZH03014 104 20 9<br />

19 CZH03025 106 21<br />

10<br />

24 CZH03029 102 21<br />

11<br />

14 CZH03020 102 22<br />

12<br />

13 CZH03019 104 23<br />

14<br />

29 CZH01029 100 23<br />

11<br />

11 CZH03017 97 23<br />

14<br />

20 CZH03041 100 23<br />

11<br />

6 CZH03012 100 24<br />

11<br />

28 CZHO I022 100 25<br />

11<br />

CZH02023 99 26<br />

13<br />

12 CZH030 18 99 26<br />

14<br />

18 CZH03024 96 27<br />

10<br />

27 CZH01021 94 28<br />

10<br />

41 lAMOl306 93 28<br />

13<br />

10 CZH03016 96 29<br />

12<br />

31 NG761 95 29 10<br />

44 LOCAL CHECK 1 87 29<br />

14<br />

39 lAM01301 89 30<br />

11<br />

45 LOCAL CHECK 2 88 31<br />

12<br />

30 OKC8053 87 31<br />

11<br />

Mal group 8Yll 102 22<br />

11<br />

Entri.. with antheala d8le ) 72 daya<br />

37 02C4886 111<br />

15<br />

14<br />

23 CZH03028 107<br />

17<br />

12<br />

21 CZH03042 106 20<br />

14<br />

26 CZH03031 103<br />

21<br />

14<br />

38 OOC5351 102 22<br />

14<br />

32 ESX609 98 23<br />

13<br />

33 PH830H83 90 24<br />

15<br />

35 SCll5 90 28<br />

13<br />

22 CZH03027 95 28<br />

34 PH830R73 87<br />

30 13<br />

42 ZAMO 1304 86<br />

30<br />

13<br />

43 ZAM02321 86<br />

32<br />

10<br />

40 ZAM02301 79 36<br />

10<br />

Matunty group avg 95 25<br />

12<br />

Mean<br />

100 23 12<br />

LSDlO.05)<br />

9 6 2<br />

'p<br />

.Mln<br />

MI'<br />

79<br />

117<br />

11<br />

36<br />

•15<br />

NumSignificanlSiles 33 33 33<br />

Acron<br />

Gre<strong>in</strong>YIeld RankNo<br />

. H....reZlm<br />

GI1lInYleld RlnkNo<br />

ijIjOhollZlm<br />

Gra<strong>in</strong>YI,ld RankNo<br />

Chn.c1zeMIl<br />

GrIlnYleld R.,kNo<br />

Avg SldOey Vna Rank I/ha Rank vna Rank l!!la Rank I/ha<br />

3.3<br />

34<br />

34<br />

3.1<br />

2.9<br />

33<br />

3.1<br />

2.6<br />

2.9<br />

31<br />

30<br />

2.8<br />

29<br />

29<br />

28<br />

30<br />

2.4<br />

29<br />

24<br />

3.0<br />

28<br />

29<br />

29<br />

23<br />

26<br />

24<br />

27<br />

23<br />

25<br />

23<br />

21<br />

25<br />

28<br />

31<br />

29<br />

32<br />

25<br />

26<br />

2.4<br />

2.9<br />

24<br />

24<br />

2.6<br />

2.4<br />

21<br />

21<br />

26<br />

2.74<br />

0.45<br />

2.14<br />

3.42<br />

10<br />

8<br />

12<br />

12<br />

17<br />

11<br />

15<br />

30<br />

21<br />

13<br />

21<br />

20<br />

21<br />

19<br />

19<br />

15<br />

33<br />

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