Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties

Ten maize varieties of tropical origin were tested at two different agro-ecological zones during the cropping season of 2007 and 2008 to investigate the genetic components of seedling emergence characteristic and correlate with grain yield and related traits in Nigeria. Heritability values were high...

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Autores principales:	Ige Sunday Ayodele, Bello Omolaran, Charity Aremu, Stephen Abolusoro
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	genetic emergence seedling heritability Agriculture S Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/24dbef804c354f2389be6fb8b78f929b
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spelling	oai:doaj.org-article:24dbef804c354f2389be6fb8b78f929b2021-12-05T14:10:58ZProbing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties2391-953110.1515/opag-2020-0180https://doaj.org/article/24dbef804c354f2389be6fb8b78f929b2021-03-01T00:00:00Zhttps://doi.org/10.1515/opag-2020-0180https://doaj.org/toc/2391-9531Ten maize varieties of tropical origin were tested at two different agro-ecological zones during the cropping season of 2007 and 2008 to investigate the genetic components of seedling emergence characteristic and correlate with grain yield and related traits in Nigeria. Heritability values were high for all traits study, indicating reliability and stability of most of the traits across different environments. Variety DMRLSR-Y had highest 300 kernel weight (105.2 g), but least grain yield and second to the least emergence percentage, indicating bigger kernel and highest kernel weight/cob but low plant stands resulted in low grain yield. Genotypic and agronomic correlation analysis revealed positive associations (p < 0.01) between grain yield and emergence percentage (E%), and 300 kernel weight; however, interval between pollen shed and silking was negatively correlated with physiological maturity period and 300 kernel weight. Improvement of this variety for higher emergence percentage is therefore predicted for higher grain yield. High values of genotypic and phenotypic coefficient of variation recorded by emergence percentage (41 and 45%) and grain yield (25 and 32%), respectively, revealed the less effects of environmental factors on the aforementioned characters, and it showed the stability and reliability of the two traits. High values of both broad sense heritability and genetic advance recorded by emergence percentage (E%) and 300 kernel weight confirmed that standard selection procedure could be used to identify superior genotypes for the two traits.Ige Sunday AyodeleBello OmolaranCharity AremuStephen AbolusoroDe GruyterarticlegeneticemergenceseedlingheritabilityAgricultureSAgriculture (General)S1-972ENOpen Agriculture, Vol 6, Iss 1, Pp 223-229 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	genetic emergence seedling heritability Agriculture S Agriculture (General) S1-972
spellingShingle	genetic emergence seedling heritability Agriculture S Agriculture (General) S1-972 Ige Sunday Ayodele Bello Omolaran Charity Aremu Stephen Abolusoro Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
description	Ten maize varieties of tropical origin were tested at two different agro-ecological zones during the cropping season of 2007 and 2008 to investigate the genetic components of seedling emergence characteristic and correlate with grain yield and related traits in Nigeria. Heritability values were high for all traits study, indicating reliability and stability of most of the traits across different environments. Variety DMRLSR-Y had highest 300 kernel weight (105.2 g), but least grain yield and second to the least emergence percentage, indicating bigger kernel and highest kernel weight/cob but low plant stands resulted in low grain yield. Genotypic and agronomic correlation analysis revealed positive associations (p < 0.01) between grain yield and emergence percentage (E%), and 300 kernel weight; however, interval between pollen shed and silking was negatively correlated with physiological maturity period and 300 kernel weight. Improvement of this variety for higher emergence percentage is therefore predicted for higher grain yield. High values of genotypic and phenotypic coefficient of variation recorded by emergence percentage (41 and 45%) and grain yield (25 and 32%), respectively, revealed the less effects of environmental factors on the aforementioned characters, and it showed the stability and reliability of the two traits. High values of both broad sense heritability and genetic advance recorded by emergence percentage (E%) and 300 kernel weight confirmed that standard selection procedure could be used to identify superior genotypes for the two traits.
format	article
author	Ige Sunday Ayodele Bello Omolaran Charity Aremu Stephen Abolusoro
author_facet	Ige Sunday Ayodele Bello Omolaran Charity Aremu Stephen Abolusoro
author_sort	Ige Sunday Ayodele
title	Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
title_short	Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
title_full	Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
title_fullStr	Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
title_full_unstemmed	Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
title_sort	probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/24dbef804c354f2389be6fb8b78f929b
work_keys_str_mv	AT igesundayayodele probingofthegeneticcomponentsofseedlingemergencetraitsasselectionindicesandcorrelationwithgrainyieldcharacteristicsofsometropicalmaizevarieties AT belloomolaran probingofthegeneticcomponentsofseedlingemergencetraitsasselectionindicesandcorrelationwithgrainyieldcharacteristicsofsometropicalmaizevarieties AT charityaremu probingofthegeneticcomponentsofseedlingemergencetraitsasselectionindicesandcorrelationwithgrainyieldcharacteristicsofsometropicalmaizevarieties AT stephenabolusoro probingofthegeneticcomponentsofseedlingemergencetraitsasselectionindicesandcorrelationwithgrainyieldcharacteristicsofsometropicalmaizevarieties
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Probing of the genetic components of seedling emergence traits as selection indices, and correlation with grain yield characteristics of some tropical maize varieties

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