Effects of reduced plant height on breeding requirements and ...

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Table 5. GenoÈypes used in Coleoptile l,ength Study and Emergence Study, Experíment IV and Experíment VI. Plant Genotype Pedígree Height Class Bonanza c 7010 13 c703019 Mion 64-62 c703032 c7 03029 c703011 )t* Describêd in Table 3. t(* Ta1l þÍinn 64-62 x Bonanza Tall Mítr' 64-62 x 816507-55 Tall ** Semi-dwarf ùlínn 64-62 x 816507-55 Semi-duTarf þfínrt 64-62 x 816507-55 Semi-dr^rarf l4ir'r' 64-62 x 816507-55 Semi-dr¡arf
ferences between genotype s which were then descríbed by a Duncanrs Multiple Range Test. Single degree <strong>of</strong> freedon cornparísons were calculated to determine differences between tall and semi-dv¡arf genotypic cl-asses. Sinple phenotypíc correlations were calculated for the paraneters rneasured and rank correlations were determined to describe the relationship between these traits and <strong>plant</strong> heíght, yiel"d, 2O0 kernel weight and percent plumpness. These last four pararneters were determined fron previously grown plots <strong>of</strong> these genot)¡pes. fhis study was designed to determine if dífferences ín root size existed between the members <strong>of</strong> a selected group <strong>of</strong> tall and. semi-dwarf barley genotype s described in Table 6. A five replieate cornpletely randomized block experiment was conducted in the greenhouse ín 1975. Plants were grown in five inch clay pots in a I¿2¡ 1 soil, sand, and peat moss medium. Samples were taken once every seven days fro¡r 28 to 70 days after <strong>plant</strong>ing. The <strong>plant</strong>s were renoved from the pots and the roots were hand washed fron the medium, The roots were then removed from the <strong>plant</strong>s, dried overnight at J0 degrees C, and weíghed. Analysis <strong>of</strong> variance was ealculated for each sampling date to determine if differences existed between genotypes 53
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University of Mani
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ACKNOWI,EDGMENTS It has been a grea
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ÎABI,E OF TONTENTS av írÞâ dô
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Þâ o-â r Days to l'{aturity ....
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vaal ËÞe rro Days to Heading . ".
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SUGGÊSTIONSFORFIIIURSRESEÀRCH ,.,
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11. Nitrogen Fertil-izer Applicatio
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TABT-,8 42, 43, I+4, r+5. 46. 48. 4
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74. 75" ?6, 77, 78,. 79, 80. 81" 82
Page 19 and 20: xvii i occurred for yield, but the
Page 21 and 22: I]TERATURE REVIEW Semi-dwarf Growth
Page 23 and 24: In the United States the barley bre
Page 25 and 26: Tabl-e 1. Broad Sense Ileritability
Page 27 and 28: Table 2. Broad Sense Heritability E
Page 29 and 30: wíth yield. fhis group discussed t
Page 31 and 32: ship in common wheat. 0n the other
Page 33 and 34: c onpared 'r . Two other important
Page 35 and 36: eported a non-significant positive
Page 37 and 38: majority of studie
Page 39 and 40: correfation between diastatic power
Page 41 and 42: extent. Frey et al-. (1951) indicat
Page 43 and 44: seni-dwarf wheats to nitrogen ferti
Page 45 and 46: number of spíkes
Page 47 and 48: Stanberry and Lowrey (L965) reporte
Page 49 and 50: Íright be of grea
Page 51 and 52: from varyíng seeding rates in barl
Page 53 and 54: Reports on the effect of</s
Page 55 and 56: the effect of seed
Page 57 and 58: l,upton et 41. (7974) pointed out t
Page 59 and 60: Table 3. Pedigrees of</stro
Page 61 and 62: (4) 200 Kernel weight * record.ed i
Page 63 and 64: population, using individual line m
Page 65 and 66: Site Sanford 19?6 Clay Cawnan 19?6
Page 67 and 68: Orthogonal single degree of
Page 69: Experiment lV: _-.t0qlepptite lenet
Page 73 and 74: and plant
Page 75 and 76: Table 7. con¡tonêlts of</
Page 77 and 78: was significant" fhe only case in w
Page 79 and 80: (28 to 5B/"), as reported by nost o
Page 81 and 82: Table 8. Continued Range Lor{est Li
Page 83 and 84: the Highest Yielding l,ines within
Page 85 and 86: Phenot:'¡pic Corre-Lations Sinpl-e
Page 87 and 88: Table 10. (Cortínued) Châracteris
Page 89 and 90: did Syme (f972), Fonseca and patter
Page 91 and 92: significant negative correlation wi
Page 93 and 94: elãted negative association betwee
Page 95 and 96: Aglononie ChArae'qeri s! ic s Pl"an
Page 97 and 98: Table 12. N1Ërogen FertLlizer Àpp
Page 99 and 100: Teble 14. NltrogeÍ FertLlLzêr ApP
Page 101 and 102: Table 15. NíËrogen ¡'ertil,izer
Page 103 and 104: lable 16. Nltrogen Fertlllzer Appll
Page 105 and 106: freedom comparison indicated lqínn
Page 107 and 108: lab1e 19. Nftrogen trertÍlizer Áp
Page 109 and 110: Tâble 20, Nltrogei¡ FeltLltzêr A
Page 111 and 112: TabIe 22, Nltrogen Fertillzer Appli
Page 113 and 114: Table 23. Nitrogen Fertilizer Appl
Page 115 and 116: TabLe 25. Nltrogen Fefttlizef Appll
Page 117 and 118: itable 26. Nitrogen Fertfllzer Appl
Page 119 and 120: latlê 28. Nltrogen ¡'ertlllrer Ap
Page 121 and 122:
Sanford â.nd Carnan, 1926, Since N
Page 123 and 124:
Tabl-e 31 . Nítrogen Fertilizer Ap
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Îable33. Nítrogen Fertllizer Appl
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Table 34. Nitrogen Fertilfzer Appli
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îab1ê 36. NLtrogeî Fertl,LLzer A
Page 131 and 132:
Table 38. Nitrogen Fertllizer Appli
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lab1e 39,. NLtrogen Fertllf¿er App
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Table 41. Nitïogen Iertillzer Appl
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Table 42. Nitrogen Fertllizer Appli
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'IabLe 44. Nítrogen ¡'ertilizer A
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Q UAT,TTY Cltq.RÀcTER rsrf ts Q ua
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lable 47. Nitrogen ¡'ertilLzer App
Page 145 and 146:
Table 49. Nltrogen ferrlllzer AppLl
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îhe F x G i.nteraction at portage
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fable 52, Nltrogen Fertfllze¡ Appl
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'labLe 54- Seedlng Råte - Row Spac
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Table 55. Seeding Rate - Ror'7 Spac
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Table 57. Seeding Rate - Roúr Spac
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while the tall sho\^/ed virtually n
Page 159 and 160:
Table 59. Seedlûg Rate - Row Spacl
Page 161 and 162:
Table 60. Seedlng Rate - Row Spacin
Page 163 and 164:
Table 61. Seedlng Rate - RotT Spaci
Page 165 and 166:
Table 62, SeedLng Rate - Rorar Spac
Page 167 and 168:
?áble 64. Seedlng Rare - Ror.r Spa
Page 169 and 170:
Table 65. SeedÍng Rate - Row Spaci
Page 171 and 172:
Table 67. Seedfng Rate - Row Spací
Page 173 and 174:
Table 68. AN0VA for Coleoptile Leng
Page 175 and 176:
'Iable 72. Means for Experíment IV
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Table 73. (Continued ) B Variables
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'IabLe 74' Ranks of</strong
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Table 76. cenotype Means for Root D
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fabTe ?6 Cid not indicate this diff
Page 185 and 186:
Table 79. Ranks of
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Tabl"e 81. ANOVA for Number <strong
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the second v¡as not significant (f
Page 191 and 192:
Table 85. Mean Numbers of</
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of two locations f
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have increased the precision <stron
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showed no environmental interaction
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yield testlng experiments. Furtherm
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could in part account for the poor
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signlficant, the correl_ations were
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height and the qua
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trial period. The area in which the
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any specific cross. However, they d
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as strong nor as consl-stent as is
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with several critical agronomic par
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maturity and days in post-anthesis
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significantry rerated to several ot
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icularly when nore optimum growing
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would be useful to know the rerativ
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Kernel Weight Added N had little ef
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much as the tall genotypes. Also th
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îhe effects of N
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with the overall results of
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Phenotypicaì.J_y novel gernplasm,
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drastícaIIy changed phenotype as t
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should not be recomnended for produ
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One of the problem
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The associatíon between root growt
Page 241 and 242:
GENER¡.L DTSCUSS]ON Since desired
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inheríted" observation of<
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indicated by this study suggests th
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individual lines. It is generally c
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sístent suppLy of
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possibílity of ir
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Testing et one site for one year wa
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height genotJpes t
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ïn terms of the o
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Concern has been expressed by dryla
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), +. ( 6, 7, Attempts should be ma
Page 263 and 264:
Beech' D.F" and M.J.T, Norman. 196g
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Day, A.D, and R.K. Thonpson, 1970.
Page 267 and 268:
Guitard, 4,4., J.A. Neûrnan, and p
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Konishi, T. L976. The nature and ch
Page 271 and 272:
Pawlisch, P.E., and H.L. shandp. Lg
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Sisler, I^I.I^I, and p.J. Olsen. 19
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trIoodward, R.trI. 7956. The effect
Page 277 and 278:
Appetrdr*' cenotvprc ìlêans fot j
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^ppendlx conrlnue¿- Genotype Plán
Page 281 and 282:
.9anul¡uor xlpuâd¡¡V ezro tzz ,
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^pIe¡¡¿tx conrtnued. Solu It lß
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¿\tÎen¿lr conÈtnu€d, .,¡ÃE
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