论文部分内容阅读
杂交水稻具有强大的分蘖优势,一般靠分蘖夺取高产。但分蘖不可能全部成穗,尤其不能全成大穗。为了进一步探讨它的分蘖发生、成穗及与产量的关系,我们在我社荡湖淤土地单季春稻上开展了试验,供试品种为汕优2号和南优2号,常规种南京11号为对照。我们的试验结果是:一、分蘖规律及其特点杂交水稻秧苗分蘖自主茎三叶展开后普遍发生,并有芽鞘分蘖出现。移栽时都伴有一定数量的二级分蘖,因此,单株茎蘖比南京11号多1.6个以上,分蘖优势明显。由于水稻茎蘖某一节位的叶原基和比它高3个节位蘖的第一叶原基基本上同期分化出来的缘
Hybrid rice has a strong tiller advantage, usually by tiller to seize high yield. However, it is impossible for tillers to become all ears, especially for large ears. In order to further investigate its tillering, spike and its relationship with yield, we conducted a trial on a single cropping spring rice in Shanshu 2 and Nanyou 2, and the conventional species Nanjing 11 No. as a control. Our test results are: First, the law of tillering and its characteristics Hybrid rice seedlings tiller autonomy stem trilobal common occurrence occurs, and there are buds and tillers appear. Transplantation are accompanied by a certain number of secondary tillers, therefore, the plant tiller than the Nanjing 11 more than 1.6, tiller advantage obvious. Since the leaf primordia at one node of rice tillering and the first leaf primordia with tillers at 3 high nodes were basically differentiated from each other