Study of genotype x environment interactions and genotypic adaptation for Physiological, Biochemical and Agro-morphological characters under Drought condition in Upland Rice (Oryza sativa L.)

摘要

The genotype x environment interactions played very important role in the expression of all the characters except plant height. The linear component GxE interaction assumed significance in case of all the characters exceptplant height. The non-linearcomponent of GxE interaction assumed significance for all the characters except plant height, SOD at 3 days and soluble sugar at flowering. The lines identified as widely adapted lines having high mean performance, average or above linear response and stability were TN-1, DGI-138, Vandana, DGI-379for tall stature; P-0090, NDR-97, DGI-21, DGI-75 and Saita for short stature, DSU-18-6, P-0088 and P-0397for relative water content; TN-1, NDR-359, DGI-138 and DGI-21 for root length and P-0088 and P-0326for root dry weight. In case ofbiochemical traits, the widely adapted genotypes were Moroberekan and IR-64 for proline content; DGI-138 for SOD at 3 days and P-0090for soluble sugar at flowering. While, NDR-97, Vandana, DGI-152, DGI-138, Moroberekan, DSU-18-6and DGI-21 produced high yield and these lines found suitable to un-favourable environments.