辐射处理对冷季型草幼穗分化的影响

The infuluence of radiation-process on the initiation of panicle of cool-season type grass

以C6O0r射线对一年生黑麦草(品种:冠军)、多年生黑麦草(品种:爱神特)、早熟禾(品种:歌来德)及高羊茅(品种:知音)4个禾本科草坪草干种子进行辐照,剂量分别是15000rad(处理Ⅰ)2、5000rad(处理Ⅱ)、35000rad(处理Ⅲ)。播种生长后,田间取样观察;实验结果表明,所用剂量对冷季型草的幼穗分化进程影响不大,相对而言高剂量对多年生黑麦草的生殖生长有一定延长作用。

Four cool-season grass dry seeds of annual perennial(variety: Champion),Lolioum perenne(variety:Venus),Poa pratensis(variety:Glade),Festuca arundinacea(variety:Amigo) were treated with different doses of r-ray radiation processing.The treatments are 15000rad(named treatment Ⅰ),25000rad(treatmentⅡ),35000rad(treatmentⅢ).The doses used have little influence on the differentiation of seedlings of cool-season process,while treatment Ⅲ has a comparative prolongation effect on the growth of Lolioum perenne.