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三种蛋白质含量不同的水稻品种,其幼苗的硝酸还原酶的活力不同,叶绿素和硝态氮的含量也不同,凡叶绿素和硝态氮含量高的其硝酸还原酶的活力也高,凡叶绿素和硝态氮含量低的其硝酸还原酶的活力也低,华03的谷粒蛋白质含量高,其幼苗根系对铵态氮的吸收能力也强。上述结果说明,蛋白质含量不同的水稻品种,其生理生化差异在幼苗期已表现对氮的吸收和利用不同。
Three rice varieties with different protein content had different vitality of nitrate reductase and different contents of chlorophyll and nitrate nitrogen. The activity of nitrate reductase with high content of chlorophyll and nitrate nitrogen was also high. Nitrate nitrate low activity of its nitrate reductase activity is low, Hua 03 grain protein content, the seedling root ammonium nitrogen absorption capacity is also strong. The above results show that the physiological and biochemical differences of rice varieties with different protein content have shown different absorption and utilization of nitrogen at the seedling stage.