Evaluation of pearl millet mini core collection for forage yield related traits

Document Type : Research Paper

Authors

1 Research Assist. Prof., Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran

2 Research Assistant, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran

Abstract

Pearl millet (Pennisetum glaucum L.) is one of the most important crops in arid and semi-arid regions that is cultivated for grain and forage. Evaluation and using of new germplasms are essential for breeding new and high-yielding cultivars, adaptation to environmental stresses, and resistance to pests and pathogens. in order to evaluate pearl millet germplasm, 94 accessions from minicar collection with Mehran and KPM1 (as control) were cultivated in lattice design with two replications. The results of ANOVA showed that all the studied traits (number of days to flowering, height, stem diameter, number of leaves, number of tillers and forage yield) except the number of tillers were significant at 1% probability level. Phenotypic coefficient of variation (PCV) showed that the highest diversity was related to stem diameter and forage yield. Means comparison by LSD showed that genotype 63 (with 81.92 t/ha fresh forage yield) had significantly more forage yield than control cultivar (Mehran). The results of cluster analysis and principal component analysis (PCA) showed that the genetic structure of the present population can be assigned to flowering time with three sub-groups (Early, Medium and Late maturity). Substantial genetic diversity and strong population structure based on flowering time suggested the present panel is an important gene pool in pearl millet for using in breeding programs.

Keywords


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