野牡丹科、金粟兰科野生花卉抗旱性分析  

Study on Drought Resistance of Wild Flower Germplasms in Families of Melastomataceae and Chloranthaceae

作　　者：苏金强[1] 郑涛[1] 余智城[1] 林秋金[1] 陈振东[1] 

机构地区：[1]福建省热带作物科学研究所,福建漳州363001

出　　处：《西南林学院学报》2011年第4期35-37,43,共4页Journal of Southwest Forestry College

基　　金：福建省科技厅重点攻关项目(2004N012)资助

摘　　要：以8种野牡丹科、金粟兰科野生种质为试验材料,经模拟干旱胁迫处理后,通过测定其叶片的相对含水量、相对电导率、可溶性总糖含量,分析比较不同植物的抗旱能力。结果表明:干旱胁迫条件下8,种植物叶片的相对含水量降低,相对电导率、可溶性总糖含量有不同程度升高;金粟兰科J2、C的抗旱性明显强于野牡丹科的6种植物,野牡丹科中Y20、Y21、Y23的抗寒性要强于Y3、Y16、Y27。Eight species of wild flower germplasm from families of Melastomataceae and Chloranthaceae were chosen as test materials to comparatively analyze the drought resistance capacity after having been treated with simulated drought conditions.The relative water content,relative conductivity and total soluble sugar content of the leaf samples were determined in this study.The results showed that the relative water content in the leaves of all the 8 species dropped under the drought stress,whereas the relative conductivity and total soluble sugar content of these wild species germplasm rose to different extent.The study showed that the drought resistance capacity of J2 and C germplasm from family Chloranthaceae was obviously stronger than all of the wild germplasms from family Melastomataceae.Among the species germplasms in Melastomataceae family,the drought resistance capacity of Y20,Y21,Y23 was higher than that of Y3,Y16 and Y27.

关 键 词：野牡丹 金粟兰 抗旱性 

分 类 号：S722.3[农业科学—林木遗传育种]