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

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this resulted primarily frorn the generally earlier heading <strong>of</strong> C70301ì and C?A3o32 and the Late headÍng <strong>of</strong> C/Õ2û24. Mín:n 64-62 headed later, and Bonanza headed early, as conpared to their respective <strong>plant</strong> heíght category ñeârrs¡ F x G interaction was significant at ioatin l9?S sites, and the means are presented Ín fables 3U anrj 35, Ât tarnan (fable 3þ) tire interaetion was due to Bonanza and C?o3011 exhibitíng significantly earlíer heading due to increased N while the other genotypes showed no signifícant response. fhe F x G interaction at Portage (Table lJ) was eaused by a sinj"Lar situation, wítt1 C?OZO24r C?03011 and. C?O3O3Z showing the response to N. Days to lvlaturity" Datâ for this character were not taken at, Canre;n, 19?6, Applied N signífieantly affeeted rnaturity only at Carman, L975 and Sanford, 19?6 (Tab:e 36), The effect <strong>of</strong> N was to delay maturity (faUte j?C). lhe delay at Sanford came with the first N l_ncrement, but the effect at Car¡ran 1975 did not occur untiL the second N increment. fhe se¡ni-dwarf group, in this study, natured earli.er than the tal1 genotypes at al1 sites (Table 3?B), However, C7O3011 and C7O3O32 were consistently the earliest, C?OZOZ4 and Minn 64-6e consistently the latest and Bonanza inter- mediate for days to maturity (fabte 3Z¿). lhe Carman, A9Z5 F x G interaetion (Table 16) is explained by the resuLts presented in Table l8B" Bonanza
Table 34. Nitrogen Fertilfzer Applicårlon Study. Fertilizet x Genotype rnteraction Means fot Days to Iteading at carrnan, 1975. Nltrogen Applied (kS. /ha. ) 54.3a 56.8 b 52 .3a 53.3a 54.0a 52 .3a 55.8 b 52.8a 53.8ab 53 .5ab >3.3a 55 .8 b 52.0a 54. 3ab 54.Oab 53. 8ab 56.0 b 52,5a 53. 3ab 54,3a 57.5 b 58. 0 b 56 ,8ab 54.8a 56.Oab Bonanza c702024 c703011 c703032 l4inn64-62 GenoÈype NÍtrogen AppLied 56 .0a 54.3a 54.0a 53.5a 54.Oa 54.8a 53.3a 54.3a 53.8a 53. 3a 56 .8 b 52.5a 52.0a 52.8a 52 ,3a 0, 00 57.5 b 58.0a 67,26 53.8ab 56.0a L34,52 53.3ab 55.8a 20L,7I 52.3a 55.8a 269.04 54.3ab 56.8a same Letter are not signí Lowed by t in a colulrr
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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
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xvii i occurred for yield, but the
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I]TERATURE REVIEW Semi-dwarf Growth
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In the United States the barley bre
Page 25 and 26:
Tabl-e 1. Broad Sense Ileritability
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Table 2. Broad Sense Heritability E
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wíth yield. fhis group discussed t
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ship in common wheat. 0n the other
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c onpared 'r . Two other important
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eported a non-significant positive
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majority of studie
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correfation between diastatic power
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extent. Frey et al-. (1951) indicat
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seni-dwarf wheats to nitrogen ferti
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number of spíkes
Page 47 and 48:
Stanberry and Lowrey (L965) reporte
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Íright be of grea
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from varyíng seeding rates in barl
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Reports on the effect of</s
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the effect of seed
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l,upton et 41. (7974) pointed out t
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Table 3. Pedigrees of</stro
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(4) 200 Kernel weight * record.ed i
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population, using individual line m
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Site Sanford 19?6 Clay Cawnan 19?6
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Orthogonal single degree of
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Experiment lV: _-.t0qlepptite lenet
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ferences between genotype s which w
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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
Page 125: Îable33. Nítrogen Fertllizer Appl
Page 129 and 130: îab1ê 36. NLtrogeî Fertl,LLzer A
Page 131 and 132: Table 38. Nitrogen Fertllizer Appli
Page 133 and 134: lab1e 39,. NLtrogen Fertllf¿er App
Page 135 and 136: Table 41. Nitïogen Iertillzer Appl
Page 137 and 138: Table 42. Nitrogen Fertllizer Appli
Page 139 and 140: 'IabLe 44. Nítrogen ¡'ertilizer A
Page 141 and 142: Q UAT,TTY Cltq.RÀcTER rsrf ts Q ua
Page 143 and 144: lable 47. Nitrogen ¡'ertilLzer App
Page 145 and 146: Table 49. Nltrogen ferrlllzer AppLl
Page 147 and 148: îhe F x G i.nteraction at portage
Page 149 and 150: fable 52, Nltrogen Fertfllze¡ Appl
Page 151 and 152: 'labLe 54- Seedlng Råte - Row Spac
Page 153 and 154: Table 55. Seeding Rate - Ror'7 Spac
Page 155 and 156: Table 57. Seeding Rate - Roúr Spac
Page 157 and 158: 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
Page 177 and 178:
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
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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,
Page 233 and 234:
drastícaIIy changed phenotype as t
Page 235 and 236:
should not be recomnended for produ
Page 237 and 238:
One of the problem
Page 239 and 240:
The associatíon between root growt
Page 241 and 242:
GENER¡.L DTSCUSS]ON Since desired
Page 243 and 244:
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
Page 259 and 260:
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
Page 269 and 270:
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
Page 285:
¿\tÎen¿lr conÈtnu€d, .,¡ÃE
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