Stability Analysis of Rice (Oryza sativa L.) Genotypes with High Grain Zinc in Five Different .....

Rice is a significant source of nutrition and a staple food for over half of the world's population. The ability to evaluate genotypes for food and nutritional protection is focused on knowledge of mean output and stability of high grain Zinc rice genotypes from a multi-location trial. The Eberhart and Russell stability model was used to investigate the stability of 21 high grain Zinc rice genotypes for thirteen yield and yield attributing traits in RCBD with three replications in five separate locations in Eastern Uttar Pradesh. Bhikaripur village has the most favourable climate, according to the environmental index. With the exception of plant height, spikelet fertility percent, and total effective tiller number, there were substantial linear G x E interactions for most of the characters examined, suggesting that there were significant differences among the genotypes. Except for grain L/B ratio, which represents the unique existence of habitats, and G x E interaction in morphological expression, the environment + (genotype x environment) was important for most of the traits. Based on the stability parameters, none of the genotypes were found to be stable for any traits across the five environments, but IR 97443-11-2-1-1-1-1 –B and Local check (HUR3022) showed high yield stability across all environments. The genotype IR 97443-11-2-1-1-1-1 –B, which is stable for grain yield per ha with a higher mean and short length, as well as grain yield per plant, grain weight per panicle, and spikelet fertility percent, may be used as a high yielding cultivar and a parent in future breeding programmes. Grain Zinc content is highest in the genotype IR 95044:8-B-5-22-19-GBS. BRRIdhan 64 has a high grain zinc content and a high yield, and it is stable for grain zinc content, so it can be used in Zinc bio-fortification breeding programmes to reduce malnutrition and ensure food and nutritional stability.

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