Characterising variation in wheat traits under hostile soil conditions in India

Intensive crop breeding has increased wheat yields and production in India. Wheat improvement in India typically involves selecting yield and component traits under non-hostile soil conditions at regional scales. The aim of this study is to quantify G*E interactions on yield and component traits to...

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Main Authors: Khokhar, Jaswant S., Sareen, Sindu, Tyagi, Bhudeva S., Singh, Gyanendra, Chowdhury, Apurba K., Dhar, Tapamay, Singh, Vinod, King, Ian P., Young, Scott D., Broadley, Martin R.
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Published: Public Library of Science 2017
Online Access:https://eprints.nottingham.ac.uk/43595/
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author Khokhar, Jaswant S.
Sareen, Sindu
Tyagi, Bhudeva S.
Singh, Gyanendra
Chowdhury, Apurba K.
Dhar, Tapamay
Singh, Vinod
King, Ian P.
Young, Scott D.
Broadley, Martin R.
author_facet Khokhar, Jaswant S.
Sareen, Sindu
Tyagi, Bhudeva S.
Singh, Gyanendra
Chowdhury, Apurba K.
Dhar, Tapamay
Singh, Vinod
King, Ian P.
Young, Scott D.
Broadley, Martin R.
author_sort Khokhar, Jaswant S.
building Nottingham Research Data Repository
collection Online Access
description Intensive crop breeding has increased wheat yields and production in India. Wheat improvement in India typically involves selecting yield and component traits under non-hostile soil conditions at regional scales. The aim of this study is to quantify G*E interactions on yield and component traits to further explore site-specific trait selection for hostile soils. Field experiments were conducted at six sites (pH range 4.5-9.5) in 2013-14 and 2014-15, in three agro-climatic regions of India. At each site, yield and component traits were measured on 36 genotypes, representing elite varieties from a wide genetic background developed for different regions. Mean grain yields ranged from 1.0 to 5.5 t ha⁻¹ at hostile and non-hostile sites, respectively. Site (E) had the largest effect on yield and component traits, however, interactions between genotype and site (G*E) affected most traits to a greater extent than genotype alone. Within each agro-climatic region, yield and component traits correlated positively between hostile and non-hostile sites. However, some genotypes performed better under hostile soils, with site-specific relationships between yield and component traits, which supports the value of ongoing site-specific selection activities.
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spelling nottingham-435952020-05-04T18:49:43Z https://eprints.nottingham.ac.uk/43595/ Characterising variation in wheat traits under hostile soil conditions in India Khokhar, Jaswant S. Sareen, Sindu Tyagi, Bhudeva S. Singh, Gyanendra Chowdhury, Apurba K. Dhar, Tapamay Singh, Vinod King, Ian P. Young, Scott D. Broadley, Martin R. Intensive crop breeding has increased wheat yields and production in India. Wheat improvement in India typically involves selecting yield and component traits under non-hostile soil conditions at regional scales. The aim of this study is to quantify G*E interactions on yield and component traits to further explore site-specific trait selection for hostile soils. Field experiments were conducted at six sites (pH range 4.5-9.5) in 2013-14 and 2014-15, in three agro-climatic regions of India. At each site, yield and component traits were measured on 36 genotypes, representing elite varieties from a wide genetic background developed for different regions. Mean grain yields ranged from 1.0 to 5.5 t ha⁻¹ at hostile and non-hostile sites, respectively. Site (E) had the largest effect on yield and component traits, however, interactions between genotype and site (G*E) affected most traits to a greater extent than genotype alone. Within each agro-climatic region, yield and component traits correlated positively between hostile and non-hostile sites. However, some genotypes performed better under hostile soils, with site-specific relationships between yield and component traits, which supports the value of ongoing site-specific selection activities. Public Library of Science 2017-06-12 Article PeerReviewed Khokhar, Jaswant S., Sareen, Sindu, Tyagi, Bhudeva S., Singh, Gyanendra, Chowdhury, Apurba K., Dhar, Tapamay, Singh, Vinod, King, Ian P., Young, Scott D. and Broadley, Martin R. (2017) Characterising variation in wheat traits under hostile soil conditions in India. PLoS ONE, 12 (6). e0179208/1-e0179208/18. ISSN 1932-6203 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0179208 doi:10.1371/journal.pone.0179208 doi:10.1371/journal.pone.0179208
spellingShingle Khokhar, Jaswant S.
Sareen, Sindu
Tyagi, Bhudeva S.
Singh, Gyanendra
Chowdhury, Apurba K.
Dhar, Tapamay
Singh, Vinod
King, Ian P.
Young, Scott D.
Broadley, Martin R.
Characterising variation in wheat traits under hostile soil conditions in India
title Characterising variation in wheat traits under hostile soil conditions in India
title_full Characterising variation in wheat traits under hostile soil conditions in India
title_fullStr Characterising variation in wheat traits under hostile soil conditions in India
title_full_unstemmed Characterising variation in wheat traits under hostile soil conditions in India
title_short Characterising variation in wheat traits under hostile soil conditions in India
title_sort characterising variation in wheat traits under hostile soil conditions in india
url https://eprints.nottingham.ac.uk/43595/
https://eprints.nottingham.ac.uk/43595/
https://eprints.nottingham.ac.uk/43595/