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

More documents

Recommendations

Info

$il\VOLVEMENT OF RETII\OIC ACID II{ - MSpace at the University of ...$

lhe positive relationship <strong>of</strong> barley yield with kernels per spike had been reported by several workers ineluding Tap and Harvey (I9?2) and Rasmusson and Canne1l (Lg?O), îhe non-signlficant relationshíp wÍth kernel weight was previously reported only by Hayter and Riggs (l9|j) and in some crosses studied by lísi and Lambert (1954). In the present study the relationship <strong>of</strong> yield and kernels,/spike was significant at P=0.O5 and the retationship between yield and kernel weight was not signifÍcant. fhís is supportÍve <strong>of</strong> Quisenberry (tgZ9), who concluded that kernel weight was not as important a component <strong>of</strong> yield as was kernels per spike. The positive correlation <strong>of</strong> yie).d and test weight i.s ín agreement with the reports <strong>of</strong> Rutger et aL. (L96? ) and, DenHartog and Lambert (\953). On an individual basis only population C-70-1 showed a signifieant relationship. Contrary to reports in other erops involving semi-dwarf and tall- material (Chandler (1969) in ríce, and BriggLe and Voge1 (1968) in wheat) ånd the report by Sisler and Olsen (]-95f) from a barley stu
significant negative correlation with the yield component, kernel weight, in agreement wi-th yield component compensation ani distríbution <strong>of</strong> photosynthate theories (Adams, l)61), as well âs being in agr:eernent with reports by Grafius anC Okoli (19?4) ånd Rasmusson and Cannell (19?0). .{ significant negative association <strong>of</strong> kernels per. spÍke with percent plunpness was also shown in the present study" Test welght was negatively associated with kerneLs per spike in populati-on C-70-2 ¡ however, the pooled. correlation over populations was not significant " Kernels per spike showed no relationshÌp to days tô heading, whíie there were positíve associations bei;ween kernels per spike and Cays to maturity and days in postanthesis" Phese correlations were not significa;rt on an individual population basis except for kernels per spike and days in post-anthesis in population C-?0-1. Kernels per spike was positively related to the degree <strong>of</strong> lodging in the present study and generally negatively associated with the quality parãrûeters measured, although the relationship with the level <strong>of</strong> alpha-aroylase was not significant. As reported by Crook and poehlrnan (19?1), this study revealed a significant positive association <strong>of</strong> kernel weight with percent plurnpness, and as reported. by llsi and l,ambert (f954), there was a significant positive correlation between kernel we ight and test weight" Kerne 1 weight was negatively reLated to days io heading and positively rela.ted 73
Page 1 and 2:
University of Mani
Page 3 and 4:
ACKNOWI,EDGMENTS It has been a grea
Page 5 and 6:
ÎABI,E OF TONTENTS av írÞâ dô
Page 7 and 8:
Þâ o-â r Days to l'{aturity ....
Page 9 and 10:
vaal ËÞe rro Days to Heading . ".
Page 11 and 12:
SUGGÊSTIONSFORFIIIURSRESEÀRCH ,.,
Page 13 and 14:
11. Nitrogen Fertil-izer Applicatio
Page 15 and 16:
TABT-,8 42, 43, I+4, r+5. 46. 48. 4
Page 17 and 18:
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 and 70: Experiment lV: _-.t0qlepptite lenet
Page 71 and 72: ferences between genotype s which w
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: did Syme (f972), Fonseca and patter
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 and 126: Îable33. Nítrogen Fertllizer Appl
Page 127 and 128: Table 34. Nitrogen Fertilfzer Appli
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
Page 179 and 180:
'IabLe 74' Ranks of</strong
Page 181 and 182:
Table 76. cenotype Means for Root D
Page 183 and 184:
fabTe ?6 Cid not indicate this diff
Page 185 and 186:
Table 79. Ranks of
Page 187 and 188:
Tabl"e 81. ANOVA for Number <strong
Page 189 and 190:
the second v¡as not significant (f
Page 191 and 192:
Table 85. Mean Numbers of</
Page 193 and 194:
of two locations f
Page 195 and 196:
have increased the precision <stron
Page 197 and 198:
showed no environmental interaction
Page 199 and 200:
yield testlng experiments. Furtherm
Page 201 and 202:
could in part account for the poor
Page 203 and 204:
signlficant, the correl_ations were
Page 205 and 206:
height and the qua
Page 207 and 208:
trial period. The area in which the
Page 209 and 210:
any specific cross. However, they d
Page 211 and 212:
as strong nor as consl-stent as is
Page 213 and 214:
with several critical agronomic par
Page 215 and 216:
maturity and days in post-anthesis
Page 217 and 218:
significantry rerated to several ot
Page 219 and 220:
icularly when nore optimum growing
Page 221 and 222:
would be useful to know the rerativ
Page 223 and 224:
Kernel Weight Added N had little ef
Page 225 and 226:
much as the tall genotypes. Also th
Page 227 and 228:
îhe effects of N
Page 229 and 230:
with the overall results of
Page 231 and 232:
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<
Page 245 and 246:
indicated by this study suggests th
Page 247 and 248:
individual lines. It is generally c
Page 249 and 250:
sístent suppLy of
Page 251 and 252:
possibílity of ir
Page 253 and 254:
Testing et one site for one year wa
Page 255 and 256:
height genotJpes t
Page 257 and 258:
ïn terms of the o
Page 259 and 260:
Concern has been expressed by dryla
Page 261 and 262:
), +. ( 6, 7, Attempts should be ma
Page 263 and 264:
Beech' D.F" and M.J.T, Norman. 196g
Page 265 and 266:
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
Page 273 and 274:
Sisler, I^I.I^I, and p.J. Olsen. 19
Page 275 and 276:
trIoodward, R.trI. 7956. The effect
Page 277 and 278:
Appetrdr*' cenotvprc ìlêans fot j
Page 279 and 280:
^ppendlx conrlnue¿- Genotype Plán
Page 281 and 282:
.9anul¡uor xlpuâd¡¡V ezro tzz ,
Page 283 and 284:
^pIe¡¡¿tx conrtnued. Solu It lß
Page 285:
¿\tÎen¿lr conÈtnu€d, .,¡ÃE
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?