新老品种和高秆弯穗品种子粒的干物质，全部都是抽穗后积累。
Dry matter in grains of varieties with high stem and curve panicle were all produced after heading.
因此，长江下游地区的超高产水稻基因型应该具有壮秆、少蘖、多粒大穗和高光合效率等生理性状。
The major genetic characters desirable for super rice genotypes in the above regions should be strong stems, few tillers, large panicles, and high photosynthesis efficiency.
并证实了云南高秆大穗大粒稻种资源在水稻高产育种中同样具有重要价值。
Furthermore, the rice resource of tall stalk, big spike and big grain from Yunnan is also valuable for breeding of highly yielded rice.
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