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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.

Authors

Jaswant S. Khokhar

Sindu Sareen

Bhudeva S. Tyagi

Gyanendra Singh

Apurba K. Chowdhury

Tapamay Dhar

Vinod Singh

Ian P. King

Scott D. Young

Martin R. Broadley



Contributors

Manoj Prasad
Editor

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.

Journal Article Type Article
Publication Date Jun 12, 2017
Journal PLOS ONE
Electronic ISSN 1932-6203
Publisher Public Library of Science
Peer Reviewed Peer Reviewed
Volume 12
Issue 6
Article Number e0179208
APA6 Citation Khokhar, J. S., Sareen, S., Tyagi, B. S., Singh, G., Chowdhury, A. K., Dhar, T., …Broadley, M. R. (2017). Characterising variation in wheat traits under hostile soil conditions in India. PLoS ONE, 12(6), https://doi.org/10.1371/journal.pone.0179208
DOI https://doi.org/10.1371/journal.pone.0179208
Publisher URL http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0179208
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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