The proportion distributed

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P in the tillers of high yield small grain riceis a higher than that of the low yield small grain rice and large grain rice Shan-Gui-36.The tillering ability

tillering number

effective panicle number andfilled grain number of high yield small grain rice have shown stronger and mo-re than that of large grain rice.So

in grain yield

the small grain rice could behigher than the large grain rice.From milky stage to grain yellow stage

the more photosynthates stored instem and sheath of small grain rice have been contributed to the panicle andgrains than that of lager grain rice.In rice plant breeding and culture of small grain rice

the strong tilleringability and more effective panicle number could be a way taked high grain yie-ld for breeders and agriculturistes