2024年2月29日 星期四
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
2013年 第22卷 第1期 页码[115-117]    下载全文[0.6MB]  
Abstract

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
Key wordsSaussurea involucrata (Kar. et Kir.) Sch. -Bip.; seed; sowing depth; germination rate
作者陈艳瑞1, 努尔波拉提1, 刘敏1, 王晓军1,尹林克2
所在单位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
点击量15111
下载次数957
基金项目中国科学院“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)