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| 花椒品种抗冻性比较研究 | |
| 引用本文： | 王有科,刘冰,郭凤霞.花椒品种抗冻性比较研究[J].中国沙漠,2006,26(6):1041-1045. |
| 作者姓名： | 王有科 刘冰 郭凤霞 |
| 作者单位： | 1. 甘肃农业大学,林学院,甘肃,兰州,730070;甘肃农业大学,生命科学技术学院,甘肃,兰州,730070 2. 甘肃林业职业技术学院,森管系,甘肃,天水,741020 3. 甘肃农业大学,生命科学技术学院,甘肃,兰州,730070 |
| 摘 要： | 秦安1号、油椒和大红袍是甘肃省花椒主产区的主要栽培品种。对其一年生休眠枝在不同低温（0～-40℃）处理不同时间（24～72 h）,通过测定相对电导率、超氧物岐化酶（SOD）活性和丙二醛（MDA）含量,对花椒品种休眠枝的抗冻性进行了比较研究。结果表明,各品种休眠枝的相对电导率和MDA含量从低到高均依次为:秦安1号＜油椒＜大红袍,品种间差异性均达到显著水平（P＜0.05）；SOD活性秦安1号略高于油椒,二者差异性虽未达到显著水平,但均显著高于大红袍（P＜0.01）；相同温度下,3品种休眠枝的相对电导率、MDA含量均随低温持续时间的延长而升高,大红袍休眠枝上升更加明显。SOD活性均随处理时间的延长而降低。引起各花椒品种休眠枝低温伤害的临界温度范围为-15～-20℃。从相对电导率、MDA含量和SOD活性的变化综合分析,供试的3个花椒品种中,秦安1号的抗冻性最强,油椒次之,大红袍抗冻性最弱。 |
| 关 键 词： | 花椒 相对电导率 丙二醛 超氧物岐化酶 抗冻性 |
| 文章编号： | 1000-694X（2006）06-1041-05 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005-10-11 |
Comparison Studies on the Freezing Resistance in Zanthoxylum bungeanum |
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| WANG You-ke,LIU Bing,GUO Feng-xia.Comparison Studies on the Freezing Resistance in Zanthoxylum bungeanum[J].Journal of Desert Research,2006,26(6):1041-1045. | |
| Authors: | WANG You-ke LIU Bing GUO Feng-xia |
| Institution: | 1 .Forestry College of Gansu Agricultural University, Gansu 730070. China; 2.The Forest Resources Management Department of Gansu Forestry Professional Technalogy College, TianShui 741020, Gansu, China; 3.College of Life Sciences and Technology, Gansu Agricultural University, Lanzhou 730070, China |
| Abstract: | Qingan No.1, Youjiao and Dahongpao are main Zanthoxylum bungeanum cultivars in Gansu province. One-year-old dormant shoots of the above three cultivars were used to determine relative conductivity, MDA concentration and SOD activities under different low temperatures (0~-40 ℃) for different time (24~72 h). The result showed that the relative conductivity and MDA varied in the same trend in the three cultivars, and their levels are arrayed as Qingan No.1 |
| Keywords: | Zanthoxylum bungeanum the relative conductivity MDA SOD activity freezing resistance |
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