| 14个多年生黑麦草品种幼苗期对干旱胁迫的生理影响 |
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| 引用本文： | 庞丁铭,梁丹妮,魏晓艳,兰剑. 14个多年生黑麦草品种幼苗期对干旱胁迫的生理影响[J]. 黑龙江农业科学, 2016, 0(12). DOI: 10.11942/j.issn1002-2767.2016.12.0105 |
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| 作者姓名： | 庞丁铭 梁丹妮 魏晓艳 兰剑 |
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| 作者单位： | 1. 宁夏大学草业科学研究所,宁夏银川,750021;2. 宁夏大学草业科学研究所，宁夏银川750021; 宁夏大学西北土地退化与生态恢复省部共建国家重点实验室培育基地，宁夏银川750021; 宁夏大学西北退化生态系统恢复与重建教育部重点实验室，宁夏银川750021 |
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| 摘 要： | 为筛选抗旱能力强的多年生黑麦草品种,研究了14个多年生黑麦草(Lolium multiflorum L.)品种叶绿素(Chl)、超氧化物歧化酶(SOD)、丙二醛(MDA)和脯氨酸(Pro)生理生化指标对不同梯度干旱胁迫的影响,并运用隶属函数进行了耐旱性综合评价。结果表明:在干旱胁迫下各品种间叶绿素(Chl)含量和超氧化物歧化酶(SOD)活性呈先上升后下降的趋势,丙二醛(MDA)和脯氨酸(Pro)的含量均呈上升趋势,经耐旱性综合评价(隶属函数)耐旱强弱性顺序依次为:雷神4守门员启萌金顺凯蒂沙匹克威爱神特天马金牌美达利球道德北极品龙卷风博士新速2号。
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| 关 键 词： | 黑麦草 幼苗期 生理生化指标 |
Physiological Responses of Fourteen Loliumperenne Specieses of Seeding Stage to Drough Stress |
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| Abstract: | In order to screen the Lolium multi f lorum L .,varieties with drought resistance ability ,the effects of chlorophyll (Chl) ,superoxide dismutase (SOD) ,malondialdehyde (MDA) and proline (Pro) physiological bi‐ochemical indexes on drought stress of 14 Lolium multif lorum L .were studied .The comprehensive evaluation of drought tolerance was carried out by using the membership function ,which provided scientific basis for the establishment of turf in arid area .The results showed that the chlorophyll (Chl) content and superoxide dis‐mutase (SOD) activity increased first and then decreased ,and the content of malondialdehyde (MDA ) and proline (Pro) increased during the drought stress .The order of drought tolerance was :Raytheon 4>Goalkeep‐er>Qimeng> Quanshun> Caddysand> Pickwick> Accent> Tianma> Jinpaimeidali> Fairway> Debeijipin>Tornado>Doctor>Newspeed2 . |
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| Keywords: | Lolium multi f lorum L . seedling stage physiological and biochemical index |
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