Stability analysis and genotype x environment interaction (Unreclaimed and reclaimed) for bioassay parameters in Mulberry (Morus alba L.,) under alkali affected soils

Abstract

The objective of this study was to determine stability and genotype x environment interaction of alkali tolerant mulberry genotypes, and the effect of different alkali soils (unreclaimed and reclaimed with organic/ inorganic amendment) on mulberry silkworm bioassay parameters to understand their adaptation. Five alkali tolerant mulberry genotypes along with three check genotypes (two improved and one ruling local genotypes) were evaluated in an alkali hotspot of south India. Wide range of stability statistics was observed among genotypes for all the stability parameters. Genotypes AR-12, AR-14 and AR-10 showed ‘b’ values much higher than one, indicating that these genotypes respond best under the reclamation treatments. Regression coefficient of each genotype was highly significant and positively correlated with mean.