| 3个品种莲雾果苗寒冻害等级指标的确定 |
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| 引用本文： | 陈惠玲,陈惠,杨凯,林晶,马治国.3个品种莲雾果苗寒冻害等级指标的确定[J].中国农学通报,2020,36(1):68-74. |
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| 作者姓名： | 陈惠玲 陈惠 杨凯 林晶 马治国 |
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| 作者单位： | 福建省气象科学研究所,福州 350001 |
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| 基金项目： | 公益性行业（气象）科研专项“我国东南部地区主要热带果树的关键气象保障技术研究”(GYHY2014060627)；福建省科技厅农业引导性项 目“福建3 个主栽品种莲雾寒冻害监测预警及区划技术”(2017N0011)；福建省自然科学基金资助项目“热带水果气候品质评估方法研究” (2016J01181)。 |
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| 摘 要： | 为减少莲雾寒冻害损失,亟需建立不同品种莲雾果苗寒冻害等级指标。根据大尺度灾情数据记录3种莲雾果苗样本形态,对照形态学标准确定寒冻害等级,结合数理统计和对比方法建立指标。结果确定了3种莲雾果苗寒冻害等级指标。‘大叶’：Tm>4.5℃,无寒冻害;1.5℃<Tm≤4.5℃,轻度;-1.0℃<Tm≤1.5℃,中度;-3.0℃<Tm≤-1.0℃,重度;Tm≤-3.0℃,极重。‘黑珍珠’：Tm>5.5℃,无寒冻害;3.0℃<Tm≤5.5℃,轻度;0.5℃<Tm≤3.0℃,中度;-2.5℃<Tm≤0.5℃,重度;Tm≤-2.5℃,极重。‘紫红’：Tm>5.5℃,无寒冻害;2.0℃<Tm≤5.5℃,轻度;0℃<Tm≤2.0℃,中度;-1.5℃<Tm≤0℃,重度;Tm≤-1.5℃,极重。建立的指标通过低温箱试验、地理移置试验和历史灾情样本验证,具有实用意义。
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| 关 键 词： | 莲雾果苗 寒冻害 低温指标 形态学标准 人工低温箱试验 地理移置试验 |
| 收稿时间： | 2019/7/18 0:00:00 |
| 修稿时间： | 2019/11/8 0:00:00 |
3 Cultivars of Wax Apple Seedlings: Determination of Cold and Freezing Injury Grade Indexes |
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| Chen Huiling,Chen Hui,Yang Kai,Lin Jing,Ma Zhiguo.3 Cultivars of Wax Apple Seedlings: Determination of Cold and Freezing Injury Grade Indexes[J].Chinese Agricultural Science Bulletin,2020,36(1):68-74. |
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| Authors: | Chen Huiling Chen Hui Yang Kai Lin Jing Ma Zhiguo |
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| Institution: | Fujian Institute of Meteorological Science, Fuzhou 350001 |
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| Abstract: | The paper aims to establish the cold and freezing injury grade indexes for different cultivars of wax apple seedlings to reduce the loss caused by cold and freezing. Based on large-scale disaster sample data of wax apple seedlings, we determined the cold and freezing injury grade by comparing with the morphological standard, and established the cold and freezing injury grade index combined with mathematical statistics and comparison method. The results showed that: the cold and freezing injury grades of ‘Big Leaf’ were determined as: Tm>4.5℃, no cold and freezing injury; 1.5℃<Tm≤4.5℃, light injury; -1.0℃<Tm≤1.5℃, moderate injury; -3.0℃<Tm≤-1.0℃, severe injury; Tm≤-3.0℃, extremely severe injury; those of ‘Black Pearl’ were: Tm>5.5℃, no cold and freezing injury; 3.0℃<Tm≤5.5℃, light injury; 0.5℃<Tm≤3.0℃, moderate injury; -2.5℃<Tm≤0.5℃, severe injury; Tm≤-2.5℃, extremely severe injury; and those of ‘Purple’ were: Tm>5.5℃, no cold and freezing injury; 2.0℃<Tm≤5.5℃, light injury; 0℃<Tm≤2.0℃, moderate injury; -1.5℃<Tm≤0℃, severe injury; Tm≤-1.5℃, extremely severe injury. In conclusion, the cold and freezing injury grade indexes are of practical significance by artificial climate chamber experiment, geographical transplantation, and historical disaster sample verification. |
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| Keywords: | Wax apple seedling Low temperature stress Cold and freezing injury grade index |
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