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环境因子对西藏巴青县野生垂穗披碱草种子萌发的影响
王传旗1; 武俊喜2; 余成群2; 王明涛1; 包赛很那1; 苗彦军1
2017
Source Publication草地学报
ISSN1007-0435
Volume025Issue:005Pages:1103
Abstract本研究探索了西藏巴青县野生垂穗披碱草(Elymus nutans)种群繁殖扩散机理,为其开发利用提供必要的理论基础。试验在不同光、温、水(PEG6000)、盐处理条件下研究了垂穗披碱草种子萌发特性。结果表明:光照对垂穗披碱草种子萌发无显著影响;恒温25℃和变温20/30℃条件下垂穗披碱草种子萌发速度较快、发芽率较高,而5℃和35℃条件下种子不萌发;在PEG浓度为5%时垂穗披碱草种子发芽率略高于对照(CK),但其发芽指数和活力指数都显著低于对照(CK);在Na Cl溶液浓度为0%~0.4%范围内,种子均能正常萌发,且轻度盐胁迫(0.2%)对垂穗披碱草种子萌发有促进作用。上述结果说明,低温是限制西藏巴青地区野生垂穗披碱草种子成功萌发的关键因子。
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/79088
Collection中国科学院地理科学与资源研究所
Affiliation1.西藏农牧学院
2.中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
王传旗,武俊喜,余成群,等. 环境因子对西藏巴青县野生垂穗披碱草种子萌发的影响[J]. 草地学报,2017,025(005):1103.
APA 王传旗,武俊喜,余成群,王明涛,包赛很那,&苗彦军.(2017).环境因子对西藏巴青县野生垂穗披碱草种子萌发的影响.草地学报,025(005),1103.
MLA 王传旗,et al."环境因子对西藏巴青县野生垂穗披碱草种子萌发的影响".草地学报 025.005(2017):1103.
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