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扬稻 6号集优质、高产、多抗、广适性于一体。在亩施 7 5～ 17 5kg纯氮水平下 ,比汕优6 3平均增产 6 2 5% ,仿生产常量施纯氮 12 5kg/亩 ,增产幅度达 9 0 8%。扬稻 6号产量构成因素表明 ,每亩有效穗和总颖花量随施氮量的增加而增加 ,每穗粒数和结实率随施氮量的增加而降低 ,粒重变化较小。增产机理表现为绿色光合叶面积功能维持时间长 ,群体受光姿态好 ,光合产物积累多 ,源、库、流三者关系协调 ,物质运转流畅。形成高生物产量 ,大颖花量、高结实率和高粒重。
Yangdao 6 set high-quality, high yield, multi-resistance, wide compatibility in one. Under the nitrogen level of 7 5-175 kg of Mushi, the average yield was 62.5% higher than that of Shanyou 6 3, and the yield of pure nitrogen was 125 kg / mu. The rate of increase was 90.8%. The yield components of Yangdao 6 showed that the effective spike and total spikelet per acre increased with the increase of nitrogen application rate. The grain number per spike and seed setting rate decreased with the increase of nitrogen application rate, and the change of grain weight was small. The mechanism of yield increase is that the function of green photosynthetic leaf area is maintained for a long time, the population has a good light attitude and photosynthetic products accumulate, and the relationship among source, reservoir and flow is harmonious and the material runs smoothly. The formation of high biological yield, large flower volume, high seed rate and high grain weight.