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通过全国１２个省的１３个试点进行的多品种多播期试验，研究证明结实期日均温是影响稻米综合品质的主要气象因子；两者间呈二次曲线关系；结实前、中期为决定稻米综合品质优劣的温度敏感时段。
Through multi-variety and multi-seeding experiment carried out in 13 pilot projects in 12 provinces in China, it is proved that the daily average temperature during grain-filling is the main meteorological factor that affects the comprehensive quality of rice. The relationship between them is quadratic curve. Comprehensive quality advantages and disadvantages of temperature-sensitive period.