Data/hora: 04/06/2024 17:59:50

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 03/12/2014
Data da última atualização: | 26/01/2018
Autoria: | ENTRINGER, G. C.; GUEDES, F. L.; OLIVEIRA, A. A.; NASCIMENTO, J. P.; SOUZA, J. C.
Afiliação: | Universidade Estadual do Norte Fluminense Darcy Ribeiro - Campos dos Goytacazes, RJ, Brasil; FERNANDO LISBOA GUEDES, CNPC; Universidade Federal de Lavras - Lavras, MG, Brasil; Universidade Federal de Lavras - Lavras, MG, Brasil; Universidade Federal de Lavras - Lavras, MG, Brasil.
Título: | Genetic control of leaf curl in maize.
Ano de publicação: | 2014
Fonte/Imprenta: | Genetics and Molecular Research, v. 13, n. 1, p. 1672-1678, 2014.
Idioma: | Inglês
Conteúdo: | Abstract: Among the many implications of climatic change on agriculture, drought is expected to continue to have a major impact on agribusinesses. Leaf curling is an anatomical characteristic that might be potentially used to enhance plant tolerance to water deficit. Hence, we aimed to study the genetic control of leaf curl in maize. From 2 contrasting inbred lines for the trait, generations F1 , F2 , and the backcrosses were obtained. All of these generations were evaluated in a randomized block design with 2 replicates. Leaf curl samples were collected from 3 leaves above the first ear at the tasseling stage, and quantified by dividing the width of the leaf blade with natural curling against its extended width. The mean and variance components were estimated by the weighted least square method. It was found that the trait studied has predominance of the additive effects, with genetic control being attributed to few genes that favor selection and exhibit minimal influence from the environment.
Palavras-Chave: | Genetic components; Genetic control; Herdabilidade; Maize.
Thesagro: | Área foliar; Controle genético; Genética vegetal; Melhoramento genético vegetal; Milho; Resistência à seca; Zea Mays.
Thesaurus Nal: | Drought tolerance; Genetic improvement; Heritability; Leaf area; Plant genetic resources; Plant genetics.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/112987/1/ap-Genetic.pdf
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (28299-1) - UPC - AP - DD -  -  -  - DIS