PJB-2018-1104
STABILITY AND ADAPTABILITY OF SORGHUM VARIETIES ELUCIDATED WITH GENOTYPE–ENVIRONMENT INTERACTION BIPLOTS
Aamer Mumtaz
Abstract
Globally, Pakistan ranks low in milk, meat and chicken production despite spending heavily on the import of fodder seed for the livestock and chicken sectors. Sorghum may be a good domestic source of high-quality fodder and feed, because of its high protein and sugar content. Genotype × environment interaction (G × E) analysis may be useful in improving sorghum genotypes. This study compared the performance of eight sorghum varieties at two locations (the Maize and Millets Research Institute, MMRI and Dera Gazi Khan, DG Khan) for two consecutive years (2015 and 2016), giving a total of four environments, and applying the G × E method with GEA-R software. Analysis of variance (ANOVA) and heritability estimates generated by the biplot software were used for data interpretation. The influence of genotype, environment and G × E interaction was significant for all traits except environment for brix in all seasons. The data for all traits except Brix value warrant further study. Variety YSS-10 was the most suitable due to its higher grain and stalk yield, days to 50% flowering and stability. Dera Gazi Khan appeared to a better location to evaluate different hybrids than MMRI, where the environment fluctuated more. Which-won-where biplots and ideal genotype evaluation indicated that YSS-10 was the best variety for all four environments.
To Cite this article:
Download
