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This study was conducted to access the combining ability and heterosis by using a complete 5x5 diallel experiment for the measurement of grain yield and its components in Pearl millet (Pennisetum glaucum) .The effects for both general and specific combining ability were found to be highly significant for all the characters. This suggested the
involvement of both additive and non-additive gene actions in the inheritance of days to 50% flowering, number of
nodes, panicle girth, panicle length, plant height and grain yield. General combining ability (GCA) effects revealed that
all the parents proved as superior general combiners for grain yield and plant height. Specific combining ability (SCA)
estimates showed that crosses MGP-02 x MGP-31 and MGP-74 x MGP-84 were the best combinations for grain yield
which involved good x good general combiners. MGP-74 x MGP-84, MGP-31 x MGP-318 and MGP-02 x MGP-318
were the best combinations for days to flowering. These crosses possessed genes for earliness. Our results showed that
SCA variances were greater than GCA variances which clearly indicated that a major part of genetic variability in the
traits under studied was contributed by non-additive genes.
Muhammad Siddique, Saeeda Khanum, Muhammad Irshad-ul-Haq, Naveed Kamal. (2019) HETEROSIS AND COMBINING ABILITY STUDIES IN PEARL MILLET, , Volume 16, Issue 3.
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