Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India

Abstract In the present study, a total of 53 promising salt-tolerant genotypes were tested across 18 salt-affected diverse locations for three years. An attempt was made to identify ideal test locations and mega-environments using GGE biplot analysis. The CSSRI sodic environment was the most discrim...

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Autores principales:	S. L. Krishnamurthy, P. C. Sharma, D. K. Sharma, K. T. Ravikiran, Y. P. Singh, V. K. Mishra, D. Burman, B. Maji, S. Mandal, S. K. Sarangi, R. K. Gautam, P. K. Singh, K. K. Manohara, B. C. Marandi, G. Padmavathi, P. B. Vanve, K. D. Patil, S. Thirumeni, O. P. Verma, A. H. Khan, S. Tiwari, S. Geetha, M. Shakila, R Gill, V. K. Yadav, S. K. B. Roy, M. Prakash, J. Bonifacio, Abdelbagi Ismail, G. B. Gregorio, Rakesh Kumar Singh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/39b4661e593f4311b1c6d0c88b03ede0
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spelling	oai:doaj.org-article:39b4661e593f4311b1c6d0c88b03ede02021-12-02T12:30:44ZIdentification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India10.1038/s41598-017-08532-72045-2322https://doaj.org/article/39b4661e593f4311b1c6d0c88b03ede02017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08532-7https://doaj.org/toc/2045-2322Abstract In the present study, a total of 53 promising salt-tolerant genotypes were tested across 18 salt-affected diverse locations for three years. An attempt was made to identify ideal test locations and mega-environments using GGE biplot analysis. The CSSRI sodic environment was the most discriminating location in individual years as well as over the years and could be used to screen out unstable and salt-sensitive genotypes. Genotypes CSR36, CSR-2K-219, and CSR-2K-262 were found ideal across years. Overall, Genotypes CSR-2K-219, CSR-2K-262, and CSR-2K-242 were found superior and stable among all genotypes with higher mean yields. Different sets of genotypes emerged as winners in saline soils but not in sodic soils; however, Genotype CSR-2K-262 was the only genotype that was best under both saline and alkaline environments over the years. The lack of repeatable associations among locations and repeatable mega-environment groupings indicated the complexity of soil salinity. Hence, a multi-location and multi-year evaluation is indispensable for evaluating the test sites as well as identifying genotypes with consistently specific and wider adaptation to particular agro-climatic zones. The genotypes identified in the present study could be used for commercial cultivation across edaphically challenged areas for sustainable production.S. L. KrishnamurthyP. C. SharmaD. K. SharmaK. T. RavikiranY. P. SinghV. K. MishraD. BurmanB. MajiS. MandalS. K. SarangiR. K. GautamP. K. SinghK. K. ManoharaB. C. MarandiG. PadmavathiP. B. VanveK. D. PatilS. ThirumeniO. P. VermaA. H. KhanS. TiwariS. GeethaM. ShakilaR GillV. K. YadavS. K. B. RoyM. PrakashJ. BonifacioAbdelbagi IsmailG. B. GregorioRakesh Kumar SinghNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. L. Krishnamurthy P. C. Sharma D. K. Sharma K. T. Ravikiran Y. P. Singh V. K. Mishra D. Burman B. Maji S. Mandal S. K. Sarangi R. K. Gautam P. K. Singh K. K. Manohara B. C. Marandi G. Padmavathi P. B. Vanve K. D. Patil S. Thirumeni O. P. Verma A. H. Khan S. Tiwari S. Geetha M. Shakila R Gill V. K. Yadav S. K. B. Roy M. Prakash J. Bonifacio Abdelbagi Ismail G. B. Gregorio Rakesh Kumar Singh Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
description	Abstract In the present study, a total of 53 promising salt-tolerant genotypes were tested across 18 salt-affected diverse locations for three years. An attempt was made to identify ideal test locations and mega-environments using GGE biplot analysis. The CSSRI sodic environment was the most discriminating location in individual years as well as over the years and could be used to screen out unstable and salt-sensitive genotypes. Genotypes CSR36, CSR-2K-219, and CSR-2K-262 were found ideal across years. Overall, Genotypes CSR-2K-219, CSR-2K-262, and CSR-2K-242 were found superior and stable among all genotypes with higher mean yields. Different sets of genotypes emerged as winners in saline soils but not in sodic soils; however, Genotype CSR-2K-262 was the only genotype that was best under both saline and alkaline environments over the years. The lack of repeatable associations among locations and repeatable mega-environment groupings indicated the complexity of soil salinity. Hence, a multi-location and multi-year evaluation is indispensable for evaluating the test sites as well as identifying genotypes with consistently specific and wider adaptation to particular agro-climatic zones. The genotypes identified in the present study could be used for commercial cultivation across edaphically challenged areas for sustainable production.
format	article
author	S. L. Krishnamurthy P. C. Sharma D. K. Sharma K. T. Ravikiran Y. P. Singh V. K. Mishra D. Burman B. Maji S. Mandal S. K. Sarangi R. K. Gautam P. K. Singh K. K. Manohara B. C. Marandi G. Padmavathi P. B. Vanve K. D. Patil S. Thirumeni O. P. Verma A. H. Khan S. Tiwari S. Geetha M. Shakila R Gill V. K. Yadav S. K. B. Roy M. Prakash J. Bonifacio Abdelbagi Ismail G. B. Gregorio Rakesh Kumar Singh
author_facet	S. L. Krishnamurthy P. C. Sharma D. K. Sharma K. T. Ravikiran Y. P. Singh V. K. Mishra D. Burman B. Maji S. Mandal S. K. Sarangi R. K. Gautam P. K. Singh K. K. Manohara B. C. Marandi G. Padmavathi P. B. Vanve K. D. Patil S. Thirumeni O. P. Verma A. H. Khan S. Tiwari S. Geetha M. Shakila R Gill V. K. Yadav S. K. B. Roy M. Prakash J. Bonifacio Abdelbagi Ismail G. B. Gregorio Rakesh Kumar Singh
author_sort	S. L. Krishnamurthy
title	Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
title_short	Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
title_full	Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
title_fullStr	Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
title_full_unstemmed	Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India
title_sort	identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in india
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/39b4661e593f4311b1c6d0c88b03ede0
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Identification of mega-environments and rice genotypes for general and specific adaptation to saline and alkaline stresses in India

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