当前位置: 首页 > 文章 > 干旱胁迫对3个品种红花种子萌发的影响 中国农学通报 2013,29 (34) 207-211
Position: Home > Articles > The Effects of PEG Stress on Germination Characteristics of 3 Carthamus tinctorius L. Chinese Agricultural Science Bulletin 2013,29 (34) 207-211

干旱胁迫对3个品种红花种子萌发的影响

作  者:
李威;张曦;谭勇;周玲玉;王恒;陈文
单  位:
石河子大学药学院;石河子大学生命科学学院
关键词:
水分胁迫;红花;品种;PEG;种子发芽
摘  要:
为了探讨干旱梯度对不同红花品种发芽的影响,以3个红花品种‘吉红1号’、‘新红4号’和‘裕民无刺’种子为试材,采用不同渗透势的聚乙二醇(PEG 6000)模拟干旱胁迫处理,观测红花种子发芽特征。结果表明,不同的干旱梯度对红花种子发芽率有影响。当水势≤-0.4 MPa时,红花种子的萌发受到抑制,它不仅降低了发芽率,而且延迟了发芽时间,导致发芽指数的降低;随着水势升高,抑制作用增强。不同品种间受到的抑制程度有显著差异。3个品种红花种子发芽中,PEG胁迫耐受能力大小排序为:‘裕民无刺’>‘吉红1号’>‘新红4号’。
译  名:
The Effects of PEG Stress on Germination Characteristics of 3 Carthamus tinctorius L.
作  者:
Li Wei;Zhang Xi;Tan Yong;Zhou Lingyu;Wang Heng;Chen Wen;College of Life Sciences,Shihezi University;College of Pharmaceutical,Shihezi University;Key Laboratory of Phytomedicine Resources & Modernization of TCM;
关键词:
water stress;;Carthamus tinctorius L.;;variety;;polyethylene glycol;;seed germination
摘  要:
In order to study the effects of drought grades on seeds germination of Carthamus tinctorius L.,the author used‘Jihong No.1',‘Xinhong No.4'and‘Yumin wuci'as test materials, 3 Carthamus tinctorius L. varieties were investigated on their germination under treatments with different PEG concentrations. The results showed that: the PEG could retard the germination of stressed seeds, and the germination rate, germination index, and germination potential were all decreased with increasing PEG concentration, when it was under water potential≤-0.4 MPa. PEG 6000 impact seed germination with varying degrees of restrain about different safflower variety. Compared with varieties,‘Yumin wuci'had the best drought resistance,‘Jihong No.1'followed behind,‘Xinhong No.4' was weakest.

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