| 杏花器官抗寒性初步研究 |
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| 引用本文： | 孟庆瑞,徐秀英,杨建民,梁隐泉,朱政顺,李彦慧,张倩. 杏花器官抗寒性初步研究[J]. 河北农业大学学报, 2006, 29(3): 22-25 |
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| 作者姓名： | 孟庆瑞 徐秀英 杨建民 梁隐泉 朱政顺 李彦慧 张倩 |
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| 作者单位： | 河北农业大学,园林与旅游学院,河北,保定,071001;张家口市桥西区农委,河北,张家口,075000;张家口涿鹿县林业站,河北,张家口,075600 |
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| 基金项目： | 国家自然科学基金项目(30471414) |
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| 摘 要： | 以杏盛开花朵为试材,利用人工模拟霜箱,对花器官抗寒性进行了研究。结果表明:杏花器官的过冷却点为:花瓣-4.0~-5.2℃,雄蕊-3.3~-4.1℃,雌蕊-2.8~-3.2℃。低温胁迫条件下,杏花器官褐变程度加剧,相对电导率增高,质膜透性增强,膜保护酶SOD、POD的活性在低温胁迫前期均逐渐升高,在达到一定的临界低温后,呈现下降的趋势。花器官抗寒性表现为花瓣>雄蕊>雌蕊,品种间抗寒性有差异。
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| 关 键 词： | 杏花器官 过冷却点 相对电导率 SOD POD 抗寒性 |
| 文章编号： | 1000-1573（2006）03-0022-04 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005-11-03 |
Preliminary study on cold resistance of floral organs of apricot |
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| MENG Qing-rui,XU Xiu-ying,YANG Jian-min,LIANG Yin-Quan,ZHU Zheng-shun,LI Yan-hui,ZHANG Qian. Preliminary study on cold resistance of floral organs of apricot[J]. Journal of Agricultural University of Hebei, 2006, 29(3): 22-25 |
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| Authors: | MENG Qing-rui XU Xiu-ying YANG Jian-min LIANG Yin-Quan ZHU Zheng-shun LI Yan-hui ZHANG Qian |
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| Affiliation: | 1. College of Landscape Architecture and Tourism, Agricultural University of Hebei, Baoding 071001, China; 2. Agricultural committee of Zhangiiakou, Zhangjiakou 075000, China; 3. Baodai Forestry station of Zhuolu county, Zhangjiakou 075600, China |
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| Abstract: | Blooming apricot flowers were used as materials,the cold resistance character of apricot floral organs were studied in the artificial chilling box.The results showed that the supercooling points of the floral organs were: petal,-4.0～-5.2℃;stamen,-3.3～-4.1℃;pistil,-2.8～-3.2℃.Under subzero temperature,relative electrolyte leakage of flower organs increased,the permeability of plasma membrane enhanced,and the brownness was aggravated.The activity of protective enzymes such as SOD,POD rose gradually in the first stage of the low temperature stress,then there was a dropping trend after the critical subzero temperature reached.Among the flower floral organs,the order of cold resistance was: Petal>Stamen>Pistil.There were discrepancies of cold resistance among different cultivars. |
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| Keywords: | apricot floral organs relative electrolyte leakage SOD,POD cold resistance |
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