A Brief Report on the Genetic Analysis of Rice Panicle Structure
Sun Yiwei (Jiangxi Agricultural University)
Having studied the panicle structure of 14 entries, it is reproted that among the panicle components, the number of spikelets on the main panicle (Tsp) and of primary branch (PB) had the highest heritability. A significant positive correlation between Tsp and PB, also between Tsp and the number of secondary branch (SB) was found. PB had a greater direct effect on Tsp than any other panicle components. Therefore the large-panicle type of rice hybrids could be bred by using genotypes with more PB and good combining ability of PB as parents.