Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1008927
Title: Genetic control of the number of leaves above the ear in maize.
Authors: FREIRE, A. I.
DIAS, K. O. G.
OLIVEIRA, L. B. V.
NALIN, R. S.
GUEDES, F. L.
SOUZA, J. C.
Affiliation: Universidade Federal de Lavras (UFLA) - Lavras, MG, Brasil; UFLA - Lavras, MG, Brasil; UFLA - Lavras, MG, Brasil; UFLA - Lavras, MG, Brasil; FERNANDO LISBOA GUEDES, CNPC; UFLA - Lavras, MG, Brasil.
Date Issued: 2015
Citation: Genetics and Molecular Research, Ribeirao Preto, v. 14, n. 1, p. 1318-1323, Mar. 2015.
Description: 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.
Thesagro: Melhoramento genético vegetal
Anatomia vegetal
Milho
Zea mays
Área foliar
Folha
NAL Thesaurus: Leaf area
Plant genetics
Leaves
Plant breeding
Plant anatomy.
Keywords: Genetic components
Maize.
Language: en
DOI: http://dx.doi.org/10.4238/2015.February.13.11
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CNPC)

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