播种深度对天山雪莲种子萌发的影响  

Effect of sowing depth on seed germination of Saussurea involucrata

作　　者：陈艳瑞[1] 努尔波拉提[1] 刘敏[1] 王晓军[1] 尹林克[2] 

机构地区：[1]中国科学院新疆理化技术研究所,新疆乌鲁木齐830011 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《植物资源与环境学报》2013年第1期115-117,共3页Journal of Plant Resources and Environment

基　　金：中国科学院"西部之光"西部博士项目(XBBS201012);中国科学院西部行动计划项目(KGCX2-YW-509-1)

摘　　要：天山雪莲[Saussurea involucrata（Kar．et Kir．）Sch．-Bip．]，又称新疆雪莲、雪莲或雪莲花，为菊科（Compositae）风毛菊属（Saussurea DC．）多年生草本植物，主要分布在新疆天山、昆仑山、阿尔泰山和帕米尔高原，生于海拔2400—4000m的石缝、砾石坡和湿润沙地上，通常需5～8a发育成熟并开花结果。Seed germination status of Saussurea involucrata （Kar. et Kir.） Sch.-Bip. was compared by setting two groups of sowing depth according to 0.5 and 0.2 cm gradients. The results show that under sowing depth of 0.0-4.0 cm （0.5 cm gradient） and 0.0-2.0 cm （0.2 cm gradient） conditions, germination energy and germination rate of S, involucrata seed appear a trend of increasing firstly and then decreasing with increasing of sowing depth, and suitable sowing depth is 1.0 and 1.5 cm, 1.0 and 0.8 cm, respectively, in which, seed germination rate is obviously significant higher at sowing depth of 1.0 cm than that at other sowing depths. It is concluded that the suitable sowing depth of S. involucrata seed is 0.8-1.5 cm. Combined research and planting experience in recent ten years, it is suggested that the best sowing depth of S. involucrata seed is 1.0-2.5 cm in loose soil of arid region and that is 0.5-1.0 cm in tight soil.

关 键 词：天山雪莲 种子 播种深度 发芽率 

分 类 号：S567.239[农业科学—中草药栽培] S604.3[农业科学—作物学]