Jaswant S. Khokhar
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.
Bhudeva S. Tyagi
Apurba K. Chowdhury
Ian P. King
Scott D. Young
Martin R. Broadley
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|
|Publisher||Public Library of Science|
|Peer Reviewed||Peer Reviewed|
|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|
|Copyright Statement||Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0|
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0