Bunmi, OlasanmiUrassa, Fadhila AhmedMsolla, Susan Nchimbi2023-07-182023-07-182023-01-17Fadhila Ahmed Urassa, Susan Nchimbi Msolla, Olasanmi Bunmi. Diversity Among Yellow Seeded Common Beans in Tanzania. American Journal of Agriculture and Forestry. Vol. 11, No. 1, 2023, pp. 1-11. doi: 10.11648/j.ajaf.20231101.112330-85832330-8591http://www.suaire.sua.ac.tz/handle/123456789/5382Journal articleCommon bean is globally the most important leguminous crop for direct human consumption. In Tanzania, it is the most inter-cropped leguminous crop especially with maize. Characterization of common beans is important for genetic improvement and ex-situ germplasm conservation since it allows identification and awareness of key features of the genotypes. The common beans grown in Tanzania are of different seed colours such as red, red mottled, grey, white, yellow, brown etc. Yellow bean is one of the most traded bean types in Tanzania but there is limited information on diversity of the varieties cultivated across the country. Therefore, the objective of this study was to assess the diversity of yellow seeded common beans found in Tanzania. The study was carried out at Sokoine University of Agriculture, Morogoro, Tanzania in 2022. Thirty-two yellow bean genotypes collected from different regions of Tanzania were assessed for diversity using quantitative and qualitative traits. The trials were carried out in the screen house and on the open field. The data collected were subjected to analysis of variance, cluster, principal component, and correlation analyses. Sixteen genotypes were characterized as determinate plant type while the remaining sixteen were classified as indeterminate. About 75% of the genotypes had cuboid shape while 12.5% had kidney and oval shapes. About 78% of the genotypes were dominated by green cotyledon colour while 90% had white hypocotyls colour. The cluster analysis grouped the genotypes into five groups in both field and screen house. The first four principal components accounted for 51.8% of the variation observed on the field and 61.9% in the screen house. There were strong correlations among many important traits which will allow indirect selection for some complex traits. The positive correlation observed between number of locules and number of seed per pod (r = 0.87) indicates that number of locules can be used to determine the density and seed yield. There was high level of diversity among the yellow bean genotypes evaluated in this study for quantitative and qualitative traits. The scientific information obtained from this study will be useful in breeding programmes for improvement of yellow seeded beans in Tanzania for the traits.enYellow beansQualitative and quantitative traitsPrincipal component analysisCluster analysisArticle