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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
14/05/1997 |
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Data da última atualização: |
14/05/1997 |
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Autoria: |
AL-JIBOURI, H.A.; MILLER, P. A.; ROBINSON, H. F. |
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Título: |
Genotypic and environmental variances and covariances in a upland cotton cross of interspecific origin. |
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Ano de publicação: |
1958 |
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Fonte/Imprenta: |
Agronomy Journal, v.50, n.10, p.633-636, 1958. |
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Idioma: |
Inglês |
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Conteúdo: |
A high lint strength but low yielding strain extracted from the tri-species hybrid arboreum-thurberi-hirsutum was crossed with an adapted strain of Upland cotton. A population of 92 randomly chosen F3 progenies from this cross were grown in 3 replicates in 2 environments. Estimates were obtained of the genotypic and environmental variances and covariances among various yield and fiber quality traits. The major proportion of the observed phenotypic variances among progeny means was attributable to genotypic effects, ranging form 59% for lint yield to 90% for lint percentage and lint strength. The progenty X environment interaction variances made up rather small proportions of the total phenotypic variances, ranging from 1% for lint stength to 16% for yield. Plot error variances ranged from 8% of the total variance for lint percentage up to 25% for lint yield. Genotypic correlations indicated a positive relationship between lint yield and lint percentage (r = 0.84), and a negative relationship of fiber strength with both lint yield and lint percentage (r = 0.64 and - 0.58, respectively). Neither fiber length or fiber finesess were substantially correlated with yield, lint percentage, or fiber strength. Predicted effects of selection character combinations of hight yield and lint percentage with hight lint strength from this population. Possible explanations for the observed restrictions orn character ... |
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Palavras-Chave: |
Ambiental; Environmental; Genoptypic; Genotipico; Variances. |
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Thesagro: |
Algodão; Gossypium Hirsutum. |
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Thesaurus Nal: |
cotton. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02082naa a2200241 a 4500
001 1078833
005 1997-05-14
008 1958 bl --- 0-- u #d
100 1 $aAL-JIBOURI, H.A.
245 $aGenotypic and environmental variances and covariances in a upland cotton cross of interspecific origin.
260 $c1958
520 $aA high lint strength but low yielding strain extracted from the tri-species hybrid arboreum-thurberi-hirsutum was crossed with an adapted strain of Upland cotton. A population of 92 randomly chosen F3 progenies from this cross were grown in 3 replicates in 2 environments. Estimates were obtained of the genotypic and environmental variances and covariances among various yield and fiber quality traits. The major proportion of the observed phenotypic variances among progeny means was attributable to genotypic effects, ranging form 59% for lint yield to 90% for lint percentage and lint strength. The progenty X environment interaction variances made up rather small proportions of the total phenotypic variances, ranging from 1% for lint stength to 16% for yield. Plot error variances ranged from 8% of the total variance for lint percentage up to 25% for lint yield. Genotypic correlations indicated a positive relationship between lint yield and lint percentage (r = 0.84), and a negative relationship of fiber strength with both lint yield and lint percentage (r = 0.64 and - 0.58, respectively). Neither fiber length or fiber finesess were substantially correlated with yield, lint percentage, or fiber strength. Predicted effects of selection character combinations of hight yield and lint percentage with hight lint strength from this population. Possible explanations for the observed restrictions orn character ...
650 $acotton
650 $aAlgodão
650 $aGossypium Hirsutum
653 $aAmbiental
653 $aEnvironmental
653 $aGenoptypic
653 $aGenotipico
653 $aVariances
700 1 $aMILLER, P. A.
700 1 $aROBINSON, H. F.
773 $tAgronomy Journal$gv.50, n.10, p.633-636, 1958.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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