Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
20/07/2023 |
Autoria: |
FUSSELL, L. K.; PEARSON, C. J. |
Título: |
Course of grain development and its relationship to black region appearance in Pennisetum americanum. |
Ano de publicação: |
1978 |
Fonte/Imprenta: |
Fieding Crops Research, v. 1, n. 1, p. 21-31, 1978. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Genotypic differences in grain dry weight accumulation, the correlation of appearance of a dark region on the grain with maximum grain dry weight, and changes in chemical composition of the developing grain of Pennisetum americanum were examined in a field experiment at Camden, Australia. The length of the grain filling period and the rate of grain fill in the linear phase were closely correlated with final grain dry weight differences between genotypes. Hybrids exhibited higher rates of grain fill than parental lines. Black region development was a reliable indicator of the achievement of maximum grain dry weight. The level of storage carbohydrate, soluble and NaOH-extractable protein increased in a manner similar to the grain dry weight increase, except that there was some catabolism of storage carbohydrates and increase in soluble carbohydrates at the time of black region appearance. |
Palavras-Chave: |
Cenchrus americanus. |
Thesagro: |
Gramínea; Milheto; Pennisetum Americanum; Planta Forrageira. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01498naa a2200193 a 4500 001 1520570 005 2023-07-20 008 1978 bl uuuu u00u1 u #d 100 1 $aFUSSELL, L. K. 245 $aCourse of grain development and its relationship to black region appearance in Pennisetum americanum.$h[electronic resource] 260 $c1978 520 $aAbstract: Genotypic differences in grain dry weight accumulation, the correlation of appearance of a dark region on the grain with maximum grain dry weight, and changes in chemical composition of the developing grain of Pennisetum americanum were examined in a field experiment at Camden, Australia. The length of the grain filling period and the rate of grain fill in the linear phase were closely correlated with final grain dry weight differences between genotypes. Hybrids exhibited higher rates of grain fill than parental lines. Black region development was a reliable indicator of the achievement of maximum grain dry weight. The level of storage carbohydrate, soluble and NaOH-extractable protein increased in a manner similar to the grain dry weight increase, except that there was some catabolism of storage carbohydrates and increase in soluble carbohydrates at the time of black region appearance. 650 $aGramínea 650 $aMilheto 650 $aPennisetum Americanum 650 $aPlanta Forrageira 653 $aCenchrus americanus 700 1 $aPEARSON, C. J. 773 $tFieding Crops Research$gv. 1, n. 1, p. 21-31, 1978.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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