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通过对生产上推广的10个晚籼品种(组合)的株叶形态、穗部性状和产量等72个性状的测定和分析。得到:(1)单株干谷重可作为综合性状好的晚籼高产品种的首要选择指标,其次是穗曲角要大;(2)剑叶直立可作为多穗型晚籼高产品种的首要选择指标,其次是倒3～4节间要短;(3)剑叶叶面积大可作为大穗型晚籼高产品种的首要选择指标,其次是剑叶要厚;(4)单株干谷重可作为大粒型晚籼高产品种的首要选择指标,其次是田间自然状态下穗子要长,倒三叶体积要小。
In this study, 72 traits such as leaf morphology, ear traits and yield of 10 late indica cultivars (combinations) were determined and analyzed. The results showed that: (1) Dry weight per plant could be used as the primary selection index for the high yielding variety of late indica rice with good comprehensive characters, followed by that with larger spike angle; (2) (3) The leaf area of flag leaf can be used as the primary selection index for the high-yielding varieties of large-panicle late indica rice, followed by the thickness of the flag leaf; (4) Heavy as late indica indica indica indica indica rice varieties, followed by field natural state of the ear longer, down three-leaf size smaller.