Characterising variation in wheat traits under hostile soil conditions in India

Khokhar, Jaswant S. and Sareen, Sindu and Tyagi, Bhudeva S. and Singh, Gyanendra and Chowdhury, Apurba K. and Dhar, Tapamay and Singh, Vinod and King, Ian P. and 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

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution.
Download (4MB) | Preview

Abstract

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.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Plant and Crop Sciences
Identification Number: 10.1371/journal.pone.0179208
Depositing User: Eprints, Support
Date Deposited: 15 Jun 2017 09:53
Last Modified: 15 Jun 2017 23:24
URI: http://eprints.nottingham.ac.uk/id/eprint/43595

Actions (Archive Staff Only)

Edit View Edit View