不同防寒措施对甜樱桃越冬保护效果评价

doi:10.6048/j.issn.1001-4330.2018.01.012

摘要/Abstract

摘要： 【目的】 分析不同防寒措施对甜樱桃(Cerasus avium (L.)Moench)生理指标的影响及越冬防护效果。【方法】 以2年生甜樱桃幼树为试验材料,分别测定电导率、丙二醛等4种抗寒指标,运用Logistic方程计算LT₅₀,结合恢复生长率,综合评价甜樱桃越冬性和防护效果的优劣。【结果】 电导率、丙二醛含量与越冬性成负相关,可溶性糖和脯氨酸含量与越冬性成正相关,各抗寒生理指标结合恢复生长率累计贡献率达78.959%。在防寒措施下,培土+草帘和培土处理的甜樱桃耐最临界低温分别为-23.20和-22.34℃,比对照低近6℃,两者恢复生长率分别为80%左右均高于其他处理,而对照的恢复生长率在越冬后期仅为43.89%。【结论】 恢复生长率等5个指标,可作为评价不同防寒措施下甜樱桃越冬效果的依据;防护效果分为Ⅲ类,培土+草帘,培土防护效果较好;草帘、培土+毛毡一般;毛毡等四个处理较差。

关键词: 甜樱桃; 防寒措施; 半致死温度; 效果评价

Abstract: 【Objective】 This project aims to analyze the effects of different cold-proof measures on physiological indexes of sweet cherry and its overwintering protection effect.【Method】 Four cold resistance indexes, such as relative conductivity and malondialdehyde, were determined by using young sweet cherry trees of two years old as experimental materials, and the logistic equation was used to calculate LT₅₀ and the recovery rate was used to evaluate the sweet cherry overwintering effect and the pros and cons of the protective effects.【Result】 Relative conductivity and malondialdehyde contents were negatively correlated with overwintering,soluble sugar and proline content were positively correlated with overwintering, the cumulative contribution rate of the cold physiological index combined with the recovery rate was 78.959%. Under the cold-proof measures, earthed up + straw screen treatment and earthed up treatment, sweet cherry's critical low tolerance temperature was -23.20℃ and -22.34 ℃, respectively, 6 ℃ lower than that of the CK. The recovery rate of the two treatments was about 80%, which was higher than that of other treatments. The recovery rate of the two treatments was about 80% respectively higher than that of other treatments, while the recovery rate of CK treatment was only 43.89% after overwintering.【Conclusion】 Five indexes, such as restoring growth rate, can be used as the basis for evaluating the effect of sweet cherry overwintering under different cold control measures. The protective effects can be divided into three categories, among which, earthed up + straw screen treatment or earthed up treatment was better, straw screen and earthed up + felt pad treatment was just so-so, the worst was felt pad treatment and others.

Key words: sweet cherry; cold-proof measures; LT₅₀; comprehensive evaluation

中图分类号:

S662.5

王秀梅, 张云, 朱甜甜, 刘康. 不同防寒措施对甜樱桃越冬保护效果评价[J]. 新疆农业科学, 2018, 55(1): 105-115.

WANG Xiu-mei, ZHANG Yun, ZHU Tian-tian, LIU Kang. Effects of Different Cold-proof Measures on Winter Protection of Sweet Cherry[J]. Xinjiang Agricultural Sciences, 2018, 55(1): 105-115.

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