不同区域长柄扁桃抗旱性的研究

郭改改; 封斌; 麻保林; 井赵斌; 张应龙; 郭春会

doi:10.3724/SP.J.1142.2013.40360

不同区域长柄扁桃抗旱性的研究

1.
西北农林科技大学园艺学院, 陕西杨凌 712100
2. 陕西省治沙研究所, 陕西榆林 719000
3. 神木县生态协会, 陕西神木 719399

基金项目: 国家林业局林业公益性行业科研专项(201104074);西北农林科技大学唐仲英育种专项。

详细信息

作者简介:
郭改改(1990-),女,硕士研究生,主要从事果树生理研究(E-mail:273054548@qq.com)。

通讯作者:
郭春会,E-mail:906832715@qq.com

中图分类号: Q945.78
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- 文章访问数: 1506
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出版历程
- 收稿日期: 2013-01-22
- 修回日期: 2013-06-17
- 发布日期: 2013-08-29

Studies on Drought Resistance of Different Regional Amygdalus pedunculata Pall.

1.
College of Horticulture, Northwest A & F University, Yangling, Shanxi 712100, China
2. Desert Control Research Institute of Shanxi Province, Yulin, Shanxi 719000, China
3. Shenmu Ecological Association, Shenmu, Shanxi 719399, China

摘要

摘要: 以采自河北、乌审旗、榆阳、神木、固阳5个地区的一年生长柄扁桃(Amygdalus pedunculata Pall.)实生苗为试材,研究其叶片在水分胁迫下的解剖结构与生理生化特性,来确定其抗旱性强弱。结果表明:(1)水分胁迫后各地区长柄扁桃的叶片解剖结构存在显著性差异,并由隶属函数法对解剖结构综合分析得出这5个地区长柄扁桃的抗旱性顺序为:榆阳>神木>固阳>乌审旗>河北。(2)随着干旱时间的延长,各地区长柄扁桃的叶片相对含水量、质膜透性、丙二醛含量均呈上升趋势,且抗旱性弱的值越大,变化幅度也较大;SOD和POD活性、游离脯氨酸和可溶性蛋白含量均随胁迫的加强呈先升高后降低或直接降低的趋势,且抗旱性越强活性值或含量越高。(3)在干旱胁迫下Chl a和Chl b都呈先升高后降低的趋势,但Chl b对水分胁迫的反应较Chl a敏感;Car则呈下降趋势,其中榆阳和神木地区的长柄扁桃在胁迫40 d后光合色素含量均为最高。研究发现:长柄扁桃通过调整自身的叶片结构和各项生理生化特性来减缓水分胁迫带来的伤害,并由各项指标综合分析得出5个地区长柄扁桃的抗旱性顺序为:榆阳>神木>固阳>乌审旗>河北,为进一步的品种选育奠定了基础,并为长柄扁桃的产业化开发提供了理论依据。
- 长柄扁桃 /
- 解剖结构 /
- 隶属函数 /
- 生理生化特性 /
- 抗旱性
Abstract: Amygdalus pedunculata Pall. seedlings with one year of growth from Hebei,Wushenqi, Shenmu, Guyang and Yuyang regions were selected as test materials.We obtained leaf anatomical structure characteristics and physiological and biochemical characteristics under drought stress to determine drought resistance. Results showed that: (1) There were significant differences in leaf anatomical structures under water stress, and according to membership function, the sequence of drought resistance was Yuyang area>Shenmu area>Guyang area>Wushenqi area>Hebei area.(2) With the extension of stress time and degree of drought stress, leaf RWC, plasma membrane permeability and MDA showed an upward trend, and the change range of weak drought resistance was larger. Both SOD and POD activity, free proline and soluble protein content with the strengthening of stress increased first then decreased (later or directly), and the stronger the drought resistance the higher the activity or content.(3) Under water stress the contents of chlorophyll a and b also increased at first and then decreased, and the response of chlorophyll b to drought stress was more sensitive than chlorophyll a. But Car showed a downward trend, and among them Yuyang and Shenmu areas were highest after 40 days. By adjusting leaf structure, physiological and biochemical characteristics, A. pedunculata Pall. reduced the harm caused by water stress,and according to comprehensive analysis of the indicators, the sequence of drought resistance of the five regions A. pedunculata Pall.was Yuyang area>Shenmu area>Guyang area>Wushenqi area>Hebei area. This research lays a foundation for further breeding, and provides a theoretical basis for the industrialization development of Amygdalus pedunculata Pall.
- Amygdalus pedunculata Pall. /
- Anatomical structure of leaf /
- Membership function /
- Physiological and biochemical characteristic /
- Drought resistance

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参考文献(35)

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不同区域长柄扁桃抗旱性的研究

作者简介: 郭改改(1990-),女,硕士研究生,主要从事果树生理研究(E-mail:273054548@qq.com)。

通讯作者: 郭春会,E-mail:906832715@qq.com

计量

出版历程

Studies on Drought Resistance of Different Regional Amygdalus pedunculata Pall.

计量

出版历程

目录

作者简介:
郭改改(1990-),女,硕士研究生,主要从事果树生理研究(E-mail:273054548@qq.com)。

通讯作者:
郭春会,E-mail:906832715@qq.com