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一、为什么要继续探索小麦 旗 叶高光效的秘密 1978年,在小麦返青后,上海市川沙县面对13万亩小麦黄弱苗不知所措而发愁。县科委便组织大家讨论,要不要给小麦追施穗肥?有人认为小麦已度过了三分之二的生长期,再施肥也是瞎子点灯白费蜡！就在争论不休的时刻,《植物杂志》上发表了“揭开小麦旗叶高光效的秘密”一文,给他们找到了答案。原来,小麦生长后期的叶片,尤以旗叶的光合效率最高,对籽粒形成和产量的贡献最大。原因是旗叶中具有高比例的多环叶肉细胞,其细胞内的叶绿体
First, why should we continue to explore the secrets of the high efficiency of wheat flag leaf In 1978, after the wheat returned to green, Shanghai Chuansha County in the face of 13 acres of wheat yellow weak seedlings at a loss and worry about. County Science and Technology Commission will organize discussions, whether to give wheat topdressing spike? Some people think that wheat has spent two-thirds of the growth period, then fertilize the blind is lit. Just as the debate arose, the magazine Flora published the article “Uncovering the Secret of the High Light Efficiency of Wheat Flag Leaves” and found the answer for them. It turned out that the latter part of the growth of wheat leaves, especially the flag leaf photosynthetic efficiency of the highest, the largest contribution to grain formation and yield. The reason is that there is a high proportion of multi-ring mesophyll cells in the flag leaves, with intracellular chloroplasts