Genetic diversity study and estimation of iron and zinc content in red sorghum genotypes (Sorghum bicolor [L.] Moench)
DOI:10.37992/2024.1503.070
Abstract
A study involving 72 red sorghum genotypes was carried out during Rabi, 2021-22 with the objective of identifying high yielding red sorghum accessions with superior Fe and Zn content. These 72 genotypes were grouped into 10 clusters. All the four checks used in the study were grouped in cluster VIII (CO 4, Paiyur 2, Usilampatti local and AURS 013). Based on single plant yield, CO 4 was identified as the best check. Genotypes IS 29630, IS 30536 and 38 CS were grouped under cluster IX, and were better than the best check with respect to yield. These genotypes could be used in further breeding programmes. PCA identified five principal components that had Eigen value greater than one and accounted for about 72.5% of the total variation. Based on the mean performance, the genotypes viz., IS 14775, IS 29630, 38 CS, IS 29322, IS 30536, 34 CS, IS 23390, SD 8348, IS 4966 and IS 21544, which had recorded high single plant yield were used for the estimation of iron (Fe) and zinc (Zn) content. High Fe and Zn were recorded in IS 21544 and IS 4966.
Keywords: Red sorghum, clustering, PCA, mean performance, Fe and Zn.
Genetic diversity study and estimation of iron and zinc content in red sorghum genotypes Sorghum bicolor [L.] Moench
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