Understanding the dynamics of genetic resources and improving and maintaining sorghum
productivity require characterising the available Kenyan sorghum genetic diversity. The aim of thisstudy was to determine the extent and structure of diversity in Kenyan sorghum landraces. The
diversity of 148 sorghum accessions collected from Kenya's Western, Turkana, Coast, and Eastern
regions was assessed using phenotypic data. The accessions were phenotyped using qualitative and
quantitative morphological characters. The majority of the accessions were high yielding, as
evidenced by the number of panicle branches (43), the length of the panicle (21 cm), and the grain
weight (1.5 g). As evidenced by the number of leaves and nodes, as well as the average number of days to 50 percent blooming, the majority of the sorghums were late maturing and tall (88 days). Turkana and coast sorghums were identical in maturity, height, and panicle length. Broad-sense heritability was highest for the number of panicle branches (0.957). The majority of the sorghums had a dull green midrib (49.55%), no basal tillers (83%), waxy bloom (39.64%), and produced prop roots (87 percent ). panicles that stand tall In the accessions, peduncles that were loose or semi-loose predominated (69%) and peduncles that were slightly exerted predominated (83%). With only two Eigen values, PCA explained 67 percent of the total variance. The results of phenotypic cluster analysis revealed two major groups, each of which was further subdivided into four subgroups.
Author (s) Details
Rachel K Kisilu
University of Nairobi, Department of Plant Science & Crop Protection, P. O. Box 29053 00625, Nairobi, Kenya.
Kahiu Ngugi
University of Nairobi, Department of Plant Science & Crop Protection, P. O. Box 29053 00625, Nairobi, Kenya.
View Book :- https://stm.bookpi.org/CRAS-V10/article/view/1563
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