Genetics Of Erect Panicle Type Rice And The Effect Of It On The Plant Type Characters In Indica Rice

The erect panicle type rice G83 was crossed, testcrossed with the curved panicle type TGMS lines Pei' ai64S, and different panicle type plants of TC₁, F₂ populations were obtained. The genetics of erect panicle type, and the relationships between panicle types and stem-leaf morphological traits and panicle characters were analyzed. The results showed that the erect panicle was controlled by a major nucleus gene with erect panicle dominant over curved panicle; The erect panicle plants were dwarfed in plant height with tubby stem, shorter panicle, neck panicle internode, and also performed short and tubby in neck panicle, and wide and short in flag leaves , while the curved panicle was conversed; The number of effective panicles of different panicle types was not significant difference, but spikelets and the grain density per panicle of the erect panicle type were significantly higher than that of curved panicle type , while the 1000 - gain weight and seed setting rate of the erect panicle type were significantly lower than that of curved panicle type; And...