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作物产量的90%以上是光合作用的产物,产量的形成具体表现为光合作用所形成的干物质在作物器官积累与分配的过程。许多研究表明,在一定范围内,作物的生物产量与经济产量呈显著的正相关关系。因此,作物生长发育过程中的干物质积累量是经济产量的基础。在群体生产中,作物干物质积累与群体结构关系十分密切。株高是表示作物生长量的基本指标之
More than 90% of crop yield is the product of photosynthesis. The formation of yield is manifested in the process of accumulation and distribution of dry matter formed by photosynthesis in crop plants. Many studies show that within a certain range, there is a significant positive correlation between crop biomass and economic yield. Therefore, the accumulation of dry matter during crop growth and development is the basis of economic output. In group production, the dry matter accumulation of crops is closely related to the group structure. Plant height is the basic indicator of crop growth