An experiment was conducted in the Department of Horticulture, Assam Agricultural University, Jorhat to evaluate the huge diversity among the different banana germplasm in the state of Assam. The experiment comprised of 24 banana (Musa spp.) genotypes, of which the fruits were collected for precise biochemical characterization of the variations present in the collection. This analysis had created a database of the biochemical characterization of the fruits of different indigenous banana genotypes of Assam from which, it can be concluded that, there exists great genotype diversity among the Musa germplasm of Assam considering the fruit biochemical aspects and considerable amount of genetic variations are present even among the closely related genotypes within the same genomic group.

Improved variety of tomato could offer tomato growers in Assam sustainable and efficient option to achieve reliable yield across a range of locations. The Genotypes of tomato were grown in different environments (E) in the 2020–2021 rabi seasons. The objectives of the study were to (i) determine the size of genotypic and genotype by environment interaction (GEN × ENV) variance components and (ii) evaluate the relative stability of tested genotypes for yield and its components across environments. The AMMI analysis of variance on multi-environment trials showed significant effects of genotypes, environment and genotype by environment (GEN x ENV) for all the characters. Partitioning of the total variance as a percentage of the total sum of squares indicated a higher percentage of variation due to environments for all the characters ranging from 4.02 to 90.90%. The character's shelf life and fresh fruit yield per plant estimate high heritability in conjunction with high genetic advance, indicates these characters govern by additive gene action. The result of genotype performance and stability GGE biplot, concluded the genotypes Arka Abhed (G1) and Arka Rakshak (G2) have vectors closest to the origin of the biplot makes them among the environmentally least responsive and can therefore be used in stable performance across environments. The genotype Rocky (G3) had the longest vector indicating that it was most unstable but adaptable to an environment. This suggests that it can be recommended for specific environments and is among the environmentally most responsive genotypes. The present investigation, environments Sonitpur (E8) and Barpeta (E6) have been adjudged the most representative environment; because they had the longer environment vector with the AEA for fresh fruit yield per plant. This implies that it represented the average environment for tomato fresh yield. These results suggest that high tomato yields could be consistently achieved with Arka Abhed (G1) and Arka Rakshak (G2) across the regions of Assam.