Assessment of advanced field corn hybrids at different locations of Bangladesh

Abstract

Fourteen  promising crosses of maize and four check varieties (BHM-9, 981, Elite and NK-40) were assessed for genotype environment interaction (GEI) and stability in three agro-ecological zones of Bangladesh. The experiment was laid out in RCB design with three replications during rabi 2018-19. The AMMI (additive main effects and multiplicative interaction) model was used to select desired hybrid having higher yield and other potential attributes. Significant variation among the genotypes was noticed in all the characters except plant height and ear height whereas environment (E) was found significant for all the characters studied. The environment of Gazipur was poor and Dinajpur and Burirhar were suitable for the tested maize hybrids. Considering the mean, bi and S2di value all the genotypes showed differential response to adaptability under different environmental conditions. Hybrids E5 (BIL28×BIL79), E7 (BIL153×BIL95) and E9 (CML161×CML172) exhibited the higher yield as well as stable across location based on response (bi) and stability (S2di) parameter.

Bangladesh J. Agril. Res. 48(2): 183-193, June 2023