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为了解两系亚种间杂交稻干物质生产特性,以810S63020为材料,以三系杂交稻威优198为对照,分析了氮肥不同水平和不同施用时期不同群体的干物质生产与分配特点以及干物质积累与冠层叶片的关系.结果表明:810S63020灌浆期间叶片过氧化氢酶活性强,总叶绿素含量高,故其单位叶面积净光合生产量大,生育后期表现较强的干物质积累优势.
In order to understand the characteristics of dry matter production of hybrid rice between two lines, using 810S63020 as material and Weiyou 198 as control, the characteristics of dry matter production and distribution of different populations and different periods of nitrogen fertilizer were analyzed. The relationship between material accumulation and canopy leaf.The results showed that the leaf catalase activity of 810S63020 was high and the total chlorophyll content was high during the grain filling stage, therefore the net photosynthetic production of leaf area per unit area was large and the accumulation of dry matter with strong performance in late growth stage was dominant.