我国苜蓿品种的适宜辐射剂量  

SUITABLE IRRADIATION DOSE FOR ALFALFASPECIES AND VARIETIES OF CHINA

作　　者：康玉凡[1,2] 申庆宏[1,2] 乔玉梅[1,2] 

机构地区：[1]洛阳农业高等专科学校 [2]内蒙古农牧学院

出　　处：《内蒙古农牧学院学报》1998年第2期68-74,共7页

摘　　要：本试验以０～１４０ＫＲ６０Ｃｏ－射线辐照我国２５个苜蓿种和品种的干种子，研究苜蓿的辐射敏感性，确定苜蓿的适宜辐射剂量，结果表明：种子的活力指数、根长、幼苗存活率、苗高、株高、青草产量与剂量呈负相关。不同苜蓿品种辐射敏感性存在显著差异。应用模糊聚类分析法将２５个品种的辐射敏感性分为极敏感型、敏感型、中间型、迟钝型和极迟钝型５类。以苗高为指标，苜蓿品种的适宜辐射剂量在５０～１３５ＫＲ之间，不同品种之间相差２～３倍。Alfalfa seeds(12.1% moisture) were exposed to60Co- radiation field with 0～140KR radiation dose to study the radio-sensitivity and the suitable irradiation doses. In the range of irradiation doses, vitality index, root length, seedling survival rate, seeding height, plant height and forage yield decreased as the amount of radiation increased. There were significant diffrences(P<0.01) between alfalfa species or varieties. With fuzzy concentration analysis, the alfalfa samples were classified into five groups: High sensitive, lntermediate, resistant, high resistant. The suitable irradiation doses for alfalfa is 50～135KR.

关 键 词：^60Co-γ射线 苜蓿 辐射敏感性 适宜辐射剂量 

分 类 号：S551.7[农业科学—作物学]