【摘要】 1.作者应用去除分叶的方法,促进了水稻的分枝、二稜大麦的分穗和一粒、二粒小麦的小穗增花现象。2.在行去除分叶处理之后:(1)水稻引起了分枝达75%左右;(2)二稜大麦引起了分枝、分穗达84%左右;(3)圆锥小麦的分穗性状显著地得到了加强;(4)一粒和二粒小麦引起了小穗增花现象接近於100%;(5)促进了植物体的生长发育,使植株壮大,单株结实量增加;麦类植物尤为显著。但是对于麦类植物的植株高度、特别是末节长度方面,则有相反的作用,趋向于短缩。3.上述这些结果,作者认为是由于在去叶之后,打破了植物体原有的各器官之间的相互制约、相互协调的平衡状态而使营养物质发生了一种新的分配关系的缘故,结果使表型发生了改变而产生了新的形态。这是对于去叶处理所产生的一种顺应作用。本文蒙焦启源、王伏雄、王凯基、刘祖洞、及审阅者等多位先生代为阅读、修改和提供宝贵的意见,在此一并致以由衷的感谢。更多还原

【Abstract】 By the application of detillering treatment the following results were obtained: (1)In Oryza sativa,aerial branching was induced in 75% of the treated plants; (2)In Hordeum distichon,aerial branching and/or stachying phenomenon was induced in 84% of the treated plants; (3)In Triticum turgidum,the stachying character was evidently strengthened; (4)In T.monococcum and T.dicoccum,the increase of the floret number in each spikelet was induced in almost 100% of the treated plants. (5)The development of these plants was accelerated,the plants became more robust and bore more seeds.This is most evident in the wheats.The height of these plants and especially the length of the distal internode were shortened. It is suggested that the results mentioned above may be due to the redistribution of nutrients after detillering and that the changes induced are merely a kind of phenotypic variations to accommodate the detillering treatment.更多还原