| 杨桃耐寒性初步研究 |
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| 引用本文： | 佘文琴,刘大林,齐清琳.杨桃耐寒性初步研究[J].福建农林大学学报(自然科学版),2003,32(1):61-63. |
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| 作者姓名： | 佘文琴 刘大林 齐清琳 |
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| 作者单位： | 1. 福建农林大学园艺学院,福建,福州,350002
2. 福建省林业科技推广总站,福建,福州,350003 |
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| 基金项目： | 林业部"948"资助项目(99-4-11). |
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| 摘 要： | 2001-2002年对从台湾省引进的杨桃品种软枝种、马来种以及我省土种酸杨桃的耐寒性进行了研究,测定其在低温胁迫下的叶片相对电渗率、枝梢浸提液消光度以及叶片束缚水/自由水.结果表明:杨桃忍受低温的临界温度为-2至-3℃,且因品种而异;低温持续时间对临界低温也有影响.土种酸杨桃-3℃处理6h才受冻害,束缚水/自由水也较高,其耐寒性强于软枝种、马来种.
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| 关 键 词： | 杨桃 相对电渗率 耐寒性 束缚水/自由水 |
| 文章编号： | 1006-7817(2003)01-0061-03 |
| 修稿时间： | 2002年10月28 |
A primary study on cold resistance of carambola |
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| Abstract: | The research on cold resistance of one native carambola cultivar and two introduced cultivars from Taiwan Province, i.e. Luanzi and Malai was made by measuring the electrolyte leakage at low temperature, ratios of bound water to free water in their leaves and extinction degrees of extract solution of their treated branches. The result showed that the critical low temperature of carambola was -2 ℃ or -3 ℃, differing with cultivars and affected by the duration of low temperature. The native cultivar didn't suffer from freezing damage until -3 ℃ for 6 hours. Its ratio of bound water to free water was higher than those of others, and so was its cold resistance. |
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| Keywords: | carambola electrolyte leakage cold resistance ratio of bound water to free water |
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