| 不同水分胁迫对剑麻生理特性的影响 |
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| 引用本文： | 冯海燕,习金根.不同水分胁迫对剑麻生理特性的影响[J].安徽农业科学,2017,45(19). |
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| 作者姓名： | 冯海燕 习金根 |
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| 作者单位： | 中国热带农业科学院南亚热带作物研究所,广东湛江,524091;中国热带农业科学院环境与植物保护研究所,农业部儋州农业环境科学观测实验站,海南海口 571101 |
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| 基金项目： | 广东省科技厅自然科学基金项目，国家麻类产业技术体系建设专项 |
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| 摘 要： | 目的]研究不同水分胁迫对剑麻生理特性的影响。方法]通过盆栽试验,研究了轻度(T_1)、重度(T_2)水分胁迫处理对剑麻幼苗生长和抗旱性的影响。结果]各个时期剑麻株高、植株鲜重、叶片含水量、根系活力从大到小均依次为CK、T_1、T_2,相对电导率(REC)、过氧化物酶(POD)活性、游离脯氨酸(Pro)含量、丙二醛(MDA)含量从低到高依次为CK、T_1、T_2,N、P、K含量均随着水分胁迫的加剧呈下降趋势。随着处理时间的延长,不同处理剑麻叶片含水量均呈上升趋势;CK和T_1处理REC和POD活性均呈先增后减的趋势,T_2处理则呈增加趋势;T_1、T_2处理MDA含量呈增加趋势;各处理N含量均呈先增后减的趋势,P含量逐渐降低;CK和T_1处理K含量逐渐增加,而T_2处理则逐渐降低。结论]研究结果可为剑麻的抗旱栽培提供理论参考。
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| 关 键 词： | 剑麻 水分胁迫 生理特性 抗旱性 |
Effects of Different Water Stress on Physiological Characteristics of Agave sisalana |
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| FENG Hai-yan,XI Jin-gen.Effects of Different Water Stress on Physiological Characteristics of Agave sisalana[J].Journal of Anhui Agricultural Sciences,2017,45(19). |
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| Authors: | FENG Hai-yan XI Jin-gen |
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| Abstract: | Objective]To study the effects of different water stress on the physiological characteristics of Agave sisalana.Method]Pot experiment was used to study the effects of mild water stress (T1) and severe water stress (T2) on the growth and drought resistance of A.sisalana seedlings.Result]The plant height,fresh weight,leaf water content and root vigor changed regularly by the order as CK>T1>T2 during the whole growing period.The relative electric conductivity(REC),POD activity ,free proline (Pro) content and malondialdehyde (MDA) content changed by the order as CK
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| Keywords: | Agave sisalana Water stress Physiological characteristics Drought resistance |
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