earing

• When sparsely - planted rice overgrew its earing period , light intensity in the mid - lower part increased , photosynthesis prolonged , activity of nitrate and peroxide decreased , protein content increased by more than 50 % , velocity of leaf ageing slowed , but accumulation of dry matter of grain accelerated and 1000 - grain weight increased too
  摘要稀植栽培的水稻，抽穗后田间表现为中下部光强明显增加，光合作用时间延长，硝酸还原酶和过氧化物酶活性降低，蛋白质含量增加50 %以上，叶片衰老延缓，籽粒干物质积累加速，千粒重提高。