ZHOU Yu-li,ZHU Ping,HU Neng-bing,et al.Evaluation of Drought Resistance of Different Soybean at Seed Germination Stage and the Screening of Germplasm[J].Soybean Science,2015,34(04):616-623.[doi:10.11861/j.issn.1000-9841.2015.04.0616]
不同大豆品种发芽期耐旱性评价及耐旱种质筛选
- Title:
- Evaluation of Drought Resistance of Different Soybean at Seed Germination Stage and the Screening of Germplasm
- Keywords:
- Soybeans; Drought resistance at seed germination stage; PEG stress; Membership function method
- 文献标志码:
- A
- 摘要:
- 为鉴定不同大豆品种种子发芽期的耐旱性,以20%聚乙二醇(PEG-6000)溶液为渗透介质模拟干旱胁迫条件,比较了30个大豆品种发芽期与耐旱性相关的形态和生理指标的差异,并利用隶属函数法对30个品种进行了耐旱性的综合评价。结果表明:20% PEG-6000 浸种降低了大豆种子的吸水率、发芽势、发芽率、发芽指数和活力指数,抑制了胚芽和胚根的伸长,不同品种的耐旱指数和胁迫指数存在明显差异;隶属函数法综合评价结果表明,30个大豆品种发芽期的耐旱性存在差异,耐旱性较强的是叙永黄毛白水豆(G25)、叙永六月半(G21)、武冈青豆(G27)和淳平小子药黑豆(G13),耐旱性最差的是早踏扁青(G08)、丹波黑(G02)和桐庐牛吃豆(G11)。
- Abstract:
- To investigate the drought resistance of soybean at seed germination period under drought stress conditions with 20% polyethylene glycol (PEG-6000), the morphological and physiological indexes related to drought resistance of 30 soybean varieties were investigated through the subordinate function method to evaluate comprehensively the drought resistance. The results showed that the water absorption, germination energy, germination rate, germination index and vigor index of soybean seeds reduced and the growth of germ and radicle were restrained under 20% PEG-6000.There were differences in germination drought resistance index(GDRI) and germination stress index(GSI) among 30 soybean varieties.Through the comprehensive evaluation membership function method, it found that germination ability of drought resistance were markedly different among 30 soybean varieties, the drought resistances of Xuyonghuangmaobaishuidou (G25), Xuyongliuyueban(G21), Wugangqingdou(G27) and Chunpingxiaoziyaoheidou(G13) were stronger, conversely, the drought resistances of Zaotabianqing (G08), Danbohei(G2) and Tongluniuchidou (G11) were worse.
参考文献/References:
[1]杨鹏辉, 李贵全, 郭丽, 等.干旱胁迫对不同抗旱大豆品种质膜透性的影响[J]. 山西农业科学, 2003,31(3):23-26 (Yang P H, Li G Q, Guo L, et al. Cell membrane stability of soybean variety in response to drought stress[J]. 2003, 31(3):23-26)
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备注/Memo
基金项目:国家自然科学基金(31101212);安徽省教育厅高等学校省级优秀青年人才基金(2012SQRL143)。