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Genetic variance and correlation of forage yield and quality traits in tropically adapted maize

Two F2 populations segregating for biomass yield and forage quality traits were developed from two separate crosses of tropically adapted maize inbred lines. The parental, F1 and F2 generations of both crosses were evaluated to estimate broad sense heritability, genetic advance and correla...

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Main Authors: Nazatul Shima Naharudin,, Maizura Abu Sin,, Ghizan Saleh,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2021
Online Access:http://journalarticle.ukm.my/16390/1/5.pdf
http://journalarticle.ukm.my/16390/
https://www.ukm.my/jsm/malay_journals/jilid50bil1_2021/KandunganJilid50Bil1_2021.html
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spelling my-ukm.journal.163902021-04-13T03:09:09Z http://journalarticle.ukm.my/16390/ Genetic variance and correlation of forage yield and quality traits in tropically adapted maize Nazatul Shima Naharudin, Maizura Abu Sin, Ghizan Saleh, Two F2 populations segregating for biomass yield and forage quality traits were developed from two separate crosses of tropically adapted maize inbred lines. The parental, F1 and F2 generations of both crosses were evaluated to estimate broad sense heritability, genetic advance and correlations for these traits to suggest the best traits as selection criteria towards breeding forage maize with high yield and quality. In Cross 1, biomass yield trait with the highest broad-sense heritability was plant height (70.03%), whereas forage quality trait with the highest heritability estimate was crude protein content (66.60%). Heritability estimates in Cross 2 were high for all biomass yield traits and forage quality traits (>50% for all traits). Indigestible cell wall component represented by acid detergent lignin content was found to be highly heritable in both populations. High genetic advance as percent of mean were found for fresh and dry plant yield as well as for lignin content in both populations. Correlation analysis on all traits showed that all biomass yield components were significantly correlated. All traits related to cell wall content were positively correlated and acid detergent lignin was positively correlated with dry plant yield. Traits with high to moderate heritability and high predicted genetic advance, namely plant height, fresh plant yield and protein content can be used as selection criteria to improve maize biomass yield and nutritive quality for forage utilization. Selecting for higher biomass yield would also result in selecting individuals with higher lignin content as shown by the correlation analysis. Penerbit Universiti Kebangsaan Malaysia 2021-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/16390/1/5.pdf Nazatul Shima Naharudin, and Maizura Abu Sin, and Ghizan Saleh, (2021) Genetic variance and correlation of forage yield and quality traits in tropically adapted maize. Sains Malaysiana, 50 (1). pp. 45-52. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid50bil1_2021/KandunganJilid50Bil1_2021.html
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Two F2 populations segregating for biomass yield and forage quality traits were developed from two separate crosses of tropically adapted maize inbred lines. The parental, F1 and F2 generations of both crosses were evaluated to estimate broad sense heritability, genetic advance and correlations for these traits to suggest the best traits as selection criteria towards breeding forage maize with high yield and quality. In Cross 1, biomass yield trait with the highest broad-sense heritability was plant height (70.03%), whereas forage quality trait with the highest heritability estimate was crude protein content (66.60%). Heritability estimates in Cross 2 were high for all biomass yield traits and forage quality traits (>50% for all traits). Indigestible cell wall component represented by acid detergent lignin content was found to be highly heritable in both populations. High genetic advance as percent of mean were found for fresh and dry plant yield as well as for lignin content in both populations. Correlation analysis on all traits showed that all biomass yield components were significantly correlated. All traits related to cell wall content were positively correlated and acid detergent lignin was positively correlated with dry plant yield. Traits with high to moderate heritability and high predicted genetic advance, namely plant height, fresh plant yield and protein content can be used as selection criteria to improve maize biomass yield and nutritive quality for forage utilization. Selecting for higher biomass yield would also result in selecting individuals with higher lignin content as shown by the correlation analysis.
format Article
author Nazatul Shima Naharudin,
Maizura Abu Sin,
Ghizan Saleh,
spellingShingle Nazatul Shima Naharudin,
Maizura Abu Sin,
Ghizan Saleh,
Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
author_facet Nazatul Shima Naharudin,
Maizura Abu Sin,
Ghizan Saleh,
author_sort Nazatul Shima Naharudin,
title Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
title_short Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
title_full Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
title_fullStr Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
title_full_unstemmed Genetic variance and correlation of forage yield and quality traits in tropically adapted maize
title_sort genetic variance and correlation of forage yield and quality traits in tropically adapted maize
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2021
url http://journalarticle.ukm.my/16390/1/5.pdf
http://journalarticle.ukm.my/16390/
https://www.ukm.my/jsm/malay_journals/jilid50bil1_2021/KandunganJilid50Bil1_2021.html
_version_ 1696977212634300416
score 13.211869

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