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The present study was undertaken to ascertain the genetic analysis in pearl millet in 5x5diallel crosses for days to flowering, plant height, number of nodes per plant, panicle length, panicle girth and grain yield. Genetic components analysis suggested that both additive and dominance model fitted for all the characters. Both additive (D) and dominance (H1 and H2 ) components were significant for all the characters except panicle length where only dominance type of gene action is controlling the inheritance of said parameter. However, relative magnitude of dominance components (H1 and H2 ) was greater than additive components for all the characters that revealed presence of dominant gene action. Similarly, value of (H1 /D)1/2 was more than unity which showed the preponderance of over dominance type of gene action. Asymmetrical distribution of positive and negative genes was evident due the value of (H2 /4H1 ) that is less than 0.25. The ratio of dominant to recessive alleles was more than unity in days to flowering and plant height parameters indicating the excess of dominant genes. Narrow sense heritability estimates were low to high magnitude for different characters under study. The preponderance of dominant gene action in all characters indicated that heterosis breeding may be the best option for improvement in pearl millet crop.
Muhammad Irshad-ul- Haq, Muhammad Siddique, Saeeda Khanum, Naveed Kamal. (2019) GENETIC ANALYSIS OF DIFFERENT BIOMETRIC CHARACTERS IN PEARL MILLET, , Volume 16, Issue1.
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