| 应用隶属函数法综合评价链荚豆种质抗旱性 |
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| 引用本文： | 字学娟,杨石有,李茂.应用隶属函数法综合评价链荚豆种质抗旱性[J].福建农业学报,2016(8):844-848. |
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| 作者姓名： | 字学娟 杨石有 李茂 |
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| 作者单位： | 1. 海南大学应用科技学院 儋州校区,海南 儋州,571737;2. 中国热带农业科学院热带作物品种资源研究所,海南 儋州,571737 |
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| 基金项目： | 海南省自然科学基金项目(20153055)，海南省重大科技项目(ZDKJ2016017) |
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| 摘 要： | 以我国华南地区采集的8份链荚豆种质为材料,在自然干旱胁迫条件下,通过测定叶片相对含水量、叶绿素、游离脯氨酸、可溶性糖、丙二醛和相对电导率等6项抗旱生理指标,并运用隶属函数法进行抗旱性综合评价。同时以各项指标隶属函数平均值占总和的百分比评估各指标在抗旱性评价中的可靠性。结果表明,8份链荚豆种质的抗旱性强弱依次为:昌江圆湛江圆海口尖儋州尖儋州高儋州圆海口圆昌江高;相对含水量、相对电导率在链荚豆种质抗旱性鉴定中可靠性较高。
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| 关 键 词： | 链荚豆 种质 抗旱性 隶属函数 |
Drought-resistance of Alysicarpus vaginalis Germplasms Evaluated by Subordinate Function Values |
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| Abstract: | Eight Alysicarpus vaginalis germplasms exhibiting varied degrees of resistance to drought stress under natural conditions were collected from southern China for the study.Six indices,including the contents of moisture, chlorophyll,free proline, water soluble carbohydrates, and malondialdehyde, as well as the relative electric conductivity of the plant leaves, were used for a comprehensive evaluation on the drought-resistance of the germplasms based on their subordinate function values (SFVs).At the same time,the reliability of each index was determined by the ratio of individual average tototal SFV.The results ranked the abilitiesof the germplasms to resist drought stress in the order of:Changjiang Round>Zhanjiang Round>Haikou Pointed>Danzhou Pointed>Danzhou High>Danzhou Round>Haikou Round>Changjiang High.The reliabilities of the measurements on relative moisture content and electric conductivity were higher than those of the other indices used in the evaluation. |
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| Keywords: | Alysicarpus vaginalis germplasm drought-resistance subordinate function |
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