Stability Analysis for Grain Yield and its Components in Soybean (Glycine max L. Merrill)

Abstract

The present investigation was conducted with twenty two genotypes including five checks of soybean (Glycine max L.) for stability performance over three environments in a R.B.D. with three replication during kharif-2016. The analysis of variance revealed significant differences among the genotypes for all traits studied over all environments, indicating sufficient amount of variability present. G X E interaction is highly significant for all character studied except plant height, number of pods per plant and oil content. Environment (linear) was highly significant for all traits except number of seeds per pod and oil content. The predominance of linear component would help in predicting the performance of genotypes across environment. Considering the nature of stability, two genotypes MAUS-740, MAUS-710 were found promising and they had stable performance over three environments for grain yield per plant-1 while MAUS-614 was suitable for favorable environment. For number of branches plant-1 two genotypes, KDS-980 and MACS-1460 showed superiority for average response and stability under all environments. For number of pod per plant three genotypes, KDS-1045, AMS-100-39-1 and MAUS-706 had stable performance in all three environments. For number of seeds pod-1 genotypes, AMS-1002, AMS-1003, MAUS-706 and MAUS-158 suitable under unfavorable environment.The genotypes, MAUS-740, MAUS-614 had stable performance over three environments for 100 seed weight.

Effect of Sulphur and Zinc Fertilization on Growth and Yield of Soybean [Glycine max (L.) Merrill] under Nagaland Condition

“…The increase in the yield parameters was due to the sulphur supplementation and availability in the vegetative and reproductive growth of the plant aiding in its chlorophyll formation, photosynthetic process and activation of enzymes and grain formation (Yadav et al 2013). The findings deduced are in line with the works carried out by Akter et al (2013); Hosmath et al (2014) and Das et al (2022) who also reported the highest seed yield in soybean due to sulphur's application at 20 kg ha -1 compared to other sulphur levels. Even though, the findings did not replicate the previously reported works concluded by Ram et al (2014) the results suggest that sulphur requirement of the crop on the experimental soil may have been satisfied at 20 kg S ha -1 and therefore further addition of increased level of sulphur was not envisaged as the higher levels of sulphur were at par (Bhattacharjee et al 2013).…”