Effects of PEG Stress on the Drought Resistance of Six Turfgrass Varieties of Lolium perenne L.

doi:10.11733/j.issn.1007-0435.2009.01.011

›› 2009, Vol. 17 ›› Issue (1): 52-57.DOI: 10.11733/j.issn.1007-0435.2009.01.011

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Effects of PEG Stress on the Drought Resistance of Six Turfgrass Varieties of Lolium perenne L.

SHI Yong-hong¹, WAN Li-qiang², LIU Jian-ning¹, WANG Yun-qi¹, WU Xin-min¹, LI Xiang-lin²

1. Animal Husbandry and Veterinary Institute, Shanxi Academy of Agricultural Sciences, Taiyuan, Shanxi Province 030032, China;
2. Institute of animal Science, CAAS, Beijing 100193, China

Received:2008-04-22 Revised:2008-11-24 Online:2009-02-15 Published:2009-02-15

干旱胁迫对6个坪用多年生黑麦草品种抗旱性的影响

石永红¹, 万里强², 刘建宁¹, 王运琦¹, 吴欣民¹, 李向林²

1. 山西省农科院畜牧兽医研究所, 山西, 太原, 030032;
2. 中国农业科学院北京畜牧兽医研究所, 北京, 100193

通讯作者: 李向林,Author for correspondence,E-mail:lixl@iascaas.net.cn
作者简介:石永红(1972- ),男,甘肃庆阳人,博士,主要从事草地资源、管理与草地生态方面研究,E-mail:shiyh007@126.com
基金资助:
基本科研业务费专项研究基金(YWF-TD-3);国家科技支撑计划(2006BAD16B07、2007BAD56B02);“948”项目(2006-G38);山西省农科院博士基金(YBSJJ0704)资助

Abstract

Abstract: The changes of physiological and biochemical resistance indices(RWC,RPP,Pro,Chl,SOD,CAT,and MDA) of six Lolium perenne L.varieties were studied under PEG stress and their drought resistances were comprehensively assessed.The results show that the leaves of cultivars with the stronger drought resistance had more water retention quantities,higher chlorophyll contents,more accumulation of proline contents,and relatively low membrane permeability.Based on the comprehensive evaluation of physiological and biochemical characters,the drought resistance of six cultivars decreased in the following order as Accent,Premier,Bartwingo,Pinnacle,Cutter,and Fairway.

Key words: Lolium perenne L., PEG stress, RPP, SOD, CAT

摘要： 研究6个多年生黑麦草(lolium perenne L.)品种在模拟干旱条件下相对含水量、细胞膜相对透性、游离脯氨酸、叶绿素、超氧化物歧化酶、过氧化氢酶及丙二醛含量等抗性生理生化指标的变化,并对其抗旱性进行综合评价。结果表明,抗旱性强的品种在干旱胁迫(PEG胁迫)下叶片保水力强,叶绿素含量高,游离脯氨酸维持积累时间长且累积量较高,并能保持相对较高的细胞膜完整性。经抗旱性综合评价得出,6个品种抗旱性强弱依次为:爱神特>首相>百舸>顶峰>卡特>球道。

关键词: 多年生黑麦草, PEG胁迫, 细胞膜相对透性, 超氧化物歧化酶, 过氧化氢酶

CLC Number:

Q945.7

SHI Yong-hong, WAN Li-qiang, LIU Jian-ning, WANG Yun-qi, WU Xin-min, LI Xiang-lin. Effects of PEG Stress on the Drought Resistance of Six Turfgrass Varieties of Lolium perenne L.[J]. , 2009, 17(1): 52-57.

石永红, 万里强, 刘建宁, 王运琦, 吴欣民, 李向林. 干旱胁迫对6个坪用多年生黑麦草品种抗旱性的影响[J]. , 2009, 17(1): 52-57.

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Effects of PEG Stress on the Drought Resistance of Six Turfgrass Varieties of Lolium perenne L.

干旱胁迫对6个坪用多年生黑麦草品种抗旱性的影响

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