香根草种质资源耐寒性的变异研究  

Studies on the cold tolerance variance of germplasm resources of vetiver grass(Vetiveria zizanioides)

作　　者：范月君[1] 席嘉宾[2] 杨国柱[1] 张惠霞 

机构地区：[1]青海大学,青海西宁810016 [2]中山大学生命科学院,广东广州510275 [3]广东省畜牧技术推广总站,广东广州510500

出　　处：《青海大学学报（自然科学版）》2008年第3期18-23,共6页Journal of Qinghai University(Natural Science)

基　　金：国家科技部攻关项目(2004BA522B07-4);广东省科技攻关项目(2005B20201020);珠海市科技计划项目(ZK[2005]-42;PC200501004和PC20061015)资助

摘　　要：以相对电导率、可溶性糖含量、叶绿素含量和脯氨酸含量的变化为指标,对14个生态型香根草的耐寒能力进行了试验和综合评价。结果表明:各生态型之间的抗寒性存在着较大差异,其中1号Karnataka,5号Kandy,10号Monto,11号Sabak bernam四个生态型的抗寒性较好,可作为将来优良抗寒品种的原始育种材料。Based on cold stress theory, with the indexes of electrical conductivity rate, soluble sugar contents and poline contents in leaves, the cold tolerance of 14 ecotypes of vetiver grasses was tested. Results showed that obvious differences of cold resistance existed in each ecotype of vetiver grasses. Karnataka,Parit buntar, Lilongwe had higher cold toleronee than others, we can use them as source materials for cold-resistance variaty treeding.

关 键 词：香根草 种质资源 耐寒性变异 

分 类 号：Q941[生物学—植物学]