r射线辐照甘草种子当代生长效应的研究  

Effect of γ Ray Radiation on Contemporary Growth of Licorice Root

作　　者：叶力勤[1,2] 刘志[1,2] 

机构地区：[1]王利英 [2]宁夏农林科学院加工所

出　　处：《宁夏农林科技》1996年第6期28-31,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：应用６０Ｃ０－ｒ射线播前辐照甘草风干种子，对甘草植株当代生长和产量有较大影响。１９８９～１９９１年所做试验研究表明：一定剂量范围内ｒ射线辐照能提高种子发芽率，并使幼苗生长速度提高３９．７％～７１．８％，主根上部粗度增加１．５％～３１．１％，长度增加４９．８％～９１．５％，鲜重增加６４．２％～１４４．２％。It has a relatively large effect on the contemporary growth and yield of licorice root to treat seeds of licorice root with radiation of 60 Co～γ ray before sowing.An experiment made during 1989 to 1991 shows that the radiation of γ ray of a proper dosage can improve germination percentage of seeds and promote the growth rate of seedlings by 39.7%～71.8% and increase the thickness of the upper part of the main root by 1.5%～31.1%,the length by 49.8%～91.5% and fresh weight by 64.2%～144.2%.The number of the heterotropous roots also increases obviously.

关 键 词：辐照 甘草 种子 剂量 生长效应 

分 类 号：S567.710.4[农业科学—中草药栽培]