Genetic control of the number of leaves above the ear in maize.
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.
Main Authors: | , , , , , |
---|---|
Other Authors: | |
Format: | Artigo de periódico biblioteca |
Language: | English eng |
Published: |
2015-02-19
|
Subjects: | Genetic components, Maize., Melhoramento genético vegetal, Anatomia vegetal, Milho, Zea mays, Área foliar, Folha, Leaf area, Plant genetics, Leaves, Plant breeding, Plant anatomy., |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1008927 http://dx.doi.org/10.4238/2015.February.13.11 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-alice-doc-1008927 |
---|---|
record_format |
koha |
spelling |
dig-alice-doc-10089272017-08-16T02:26:40Z Genetic control of the number of leaves above the ear in maize. FREIRE, A. I. DIAS, K. O. G. OLIVEIRA, L. B. V. NALIN, R. S. GUEDES, F. L. SOUZA, J. C. 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. Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. 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. 2015-07-16T05:53:01Z 2015-07-16T05:53:01Z 2015-02-19 2015 2015-07-16T05:53:01Z Artigo de periódico Genetics and Molecular Research, Ribeirao Preto, v. 14, n. 1, p. 1318-1323, Mar. 2015. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1008927 http://dx.doi.org/10.4238/2015.February.13.11 en eng openAccess |
institution |
EMBRAPA |
collection |
DSpace |
country |
Brasil |
countrycode |
BR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-alice |
tag |
biblioteca |
region |
America del Sur |
libraryname |
Sistema de bibliotecas de EMBRAPA |
language |
English eng |
topic |
Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. |
spellingShingle |
Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. FREIRE, A. I. DIAS, K. O. G. OLIVEIRA, L. B. V. NALIN, R. S. GUEDES, F. L. SOUZA, J. C. Genetic control of the number of leaves above the ear in maize. |
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. |
author2 |
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. |
author_facet |
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. FREIRE, A. I. DIAS, K. O. G. OLIVEIRA, L. B. V. NALIN, R. S. GUEDES, F. L. SOUZA, J. C. |
format |
Artigo de periódico |
topic_facet |
Genetic components Maize. Melhoramento genético vegetal Anatomia vegetal Milho Zea mays Área foliar Folha Leaf area Plant genetics Leaves Plant breeding Plant anatomy. |
author |
FREIRE, A. I. DIAS, K. O. G. OLIVEIRA, L. B. V. NALIN, R. S. GUEDES, F. L. SOUZA, J. C. |
author_sort |
FREIRE, A. I. |
title |
Genetic control of the number of leaves above the ear in maize. |
title_short |
Genetic control of the number of leaves above the ear in maize. |
title_full |
Genetic control of the number of leaves above the ear in maize. |
title_fullStr |
Genetic control of the number of leaves above the ear in maize. |
title_full_unstemmed |
Genetic control of the number of leaves above the ear in maize. |
title_sort |
genetic control of the number of leaves above the ear in maize. |
publishDate |
2015-02-19 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1008927 http://dx.doi.org/10.4238/2015.February.13.11 |
work_keys_str_mv |
AT freireai geneticcontrolofthenumberofleavesabovetheearinmaize AT diaskog geneticcontrolofthenumberofleavesabovetheearinmaize AT oliveiralbv geneticcontrolofthenumberofleavesabovetheearinmaize AT nalinrs geneticcontrolofthenumberofleavesabovetheearinmaize AT guedesfl geneticcontrolofthenumberofleavesabovetheearinmaize AT souzajc geneticcontrolofthenumberofleavesabovetheearinmaize |
_version_ |
1756021117060907008 |