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本文根据洮南市1990～1992年3年6个乡(场)共计412个点次的实际调查和测产结果,较为系统地研究了该地区水稻主推品种藤系138的产量构成因素与产量之间的关系。结果表明,单位面积穴数,每穴穗数和每穗实粒数基本上决定了水稻产量的大部分变异。这三个产量构成因素之间存在复杂的相互制约关系,它们对产量形成的直接贡献要比它们通过其他性状的间接作用大。它们对产量形成的相对重要性依次为:每穴有效穗数>单位面积穴数>每穗粒数。在生产实践中应通过以稀植为主体的各项农艺措施把穴数控制在适宜水平,重点提高穗数和粒数。并可用回归方程Y=-10141.74+269.3148x_1+290.8640x_2+70.2571x_3,由产量性状预测产量及定量描述它们的关系。
Based on the actual survey and the measured results of 412 spots in 6 townships (fields) in Taonan from 1990 to 1992, this paper systematically studied the yield components and yield of the main rice cultivar Fujiminato 138 Relationship between. The results showed that the number of holes per unit area, the number of spikes per spike and the number of spikelets per panicle largely determined most of the variation in rice yield. The three yield components have complex interactions with each other, and their direct contribution to yield formation is greater than their indirect effect through other traits. The relative importance of their formation to yield is as follows: the number of effective panicles per hole> the number of holes per unit area> the number of grains per panicle. In production practice, we should control the number of holes at a proper level by means of various agronomic measures, which are mainly planting sparsely, and focus on improving the number of spikes and grains. The regression equation Y = -10141.74 + 269.3148x_1 + 290.8640x_2 + 70.2571x_3 can be used to describe the relationship between yield and quantitative yield.