›› 2010, Vol. 18 ›› Issue (6): 902-906.DOI: 10.11733/j.issn.1007-0435.2010.06.028

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Drought and Heat Resistance of Wild-type Agrostis stolonifera L. Collected in Guizhou

ZHONG Li, YANG Chun-yan, LI Chen-Qiong, SHANG Yi-shun, CHEN Rui-xiang   

  1. Guizhou Institute of prataculture, Dushan, Guizhou Province 558200, China
  • Received:2009-12-04 Revised:2010-10-27 Online:2010-12-15 Published:2010-12-15

贵州野生匍匐翦股颖抗旱耐热性评价

钟理, 杨春燕, 李辰琼, 尚以顺, 陈瑞祥   

  1. 贵州省草业研究所, 贵州, 独山, 558200
  • 通讯作者: 尚以顺,E-mail:gzsyishun@vip.sina.com
  • 作者简介:钟理(1983- ),男,硕士,研究方向为种质资源,E-mail:zhongliycy@126.com
  • 基金资助:
    贵州省创新能力建设项目[黔科合院所创能(2009)4013号];贵州省“十一.五”攻关项目[黔科合NY字[2008]3047号];贵州省科技技术基金项目[黔科合J字(2009)2133号]资助

Abstract: Five wild-types of Agrostis stolonifera L.were collected in Guizhou(named No1;No.2;No.3;No.4;and No.5 respectively) with one introduced variety(Putter as control) were studied in July,2008 to develop new varieties with strong drought and heat resistance.Total chlorophyll content,chlorophyll a content,chlorophyll b content,electrolyte leakage and free proline content under drought and heat stresses were measured.Both drought and heat resistance are comprehensively evaluated according to these 5 indexes,Results show that the drought and heat tolerance are ranked as No.4>No.2>No.1>No.3>Putter>No.5.

Key words: Wild, Agrostis stolonifera L., Drought and heat resistances

摘要: 于2008年7月,以贵州省内采集的5份野生匍匐翦股颖(Agrostis stolonifera L.),以及对照Putter为材料,研究其在干热胁迫过程中的形态变化,测定叶绿素总含量、叶绿素a含量、叶绿素b含量、游离脯氨酸含量和相对电导率5个生理指标,根据隶属(反隶属)函数法,采用这5个指标对野生匍匐翦股颖资源及对照Putter进行抗旱耐热性综合评价。结果表明:材料及对照抗旱耐热能力依次为:材料4>材料2>材料1>材料3>Putter>材料5。试验研究结果将为抗旱耐热型匍匐翦股颖新品种筛选提供理论依据。

关键词: 野生, 匍匐翦股颖, 抗旱性, 耐热性

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