PEG-6000处理下3种薹草种子萌发期的耐旱性评价  

Drought Resistance Evaluation of Seeds of Three Carex Species during Germination Period under PEG-6000 Treatment

作　　者：李英博 马盈慧 杜鹃 阴晓波 杨爱国[1] 王利[1] LI Yingbo;MA Yinghui;DU Juan;YIN Xiaobo;YANG Aiguo;WANG Li(Academy of Forestry Science of Baicheng City,Baicheng 137000,China)

机构地区：[1]白城市林业科学研究院,吉林白城137000

出　　处：《吉林林业科技》2024年第4期1-4,48,共5页Journal of Jilin Forestry Science and Technology

摘　　要：以低矮薹草、矮丛薹草、大披针薹草的种子为试验材料,分别用质量分数0%(CK)、5%、10%、15%、20%、25%PEG-6000溶液进行处理,通过测定发芽率、发芽势、发芽指数和活力指数,评价3种薹草种子在萌发期的耐旱性。结果表明:随着PEG-6000质量分数的升高,3种薹草种子的发芽率、发芽势、发芽指数、活力指数均受到不同程度的影响。3种薹草种子耐旱性由强到弱依次为:大披针薹草>矮丛薹草>低矮薹草。To evaluate the drought resistance of seeds of three Carex species during germination period,the germination rate,germination potential,germination index and vital index of C.humilis,C.callitrichos var.nana,and C.lanceolata were measured under PEG-6000 solution treatment with the mass fraction of 0%(CK),5%,10%,15%,20%and 25%.The results showed that the germination rate,germination potential,germination index,and vital index of seeds of three Carex species were affected with the increase of the mass fraction of PEG-6000.The drought resistance of seeds of three Carex species was as follows:C.lanceolata>C.callitrichos var.nana>C.humilis.

关 键 词：薹草属 种子萌发 PEG-6000处理 耐旱性评价 

分 类 号：S688.4[农业科学—观赏园艺] Q949.4[农业科学—园艺学]