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当前位置: 首页 > 文章 > 不同防冻剂对翠玉梨幼果冻害的效果研究 中国果菜 2020 (3) 1-5
Position: Home > Articles > Effects of Different Antifreeze Treatments on the Freezing Damage of Young "Cuiyu" Pear China Fruit Vegetable 2020 (3) 1-5

不同防冻剂对翠玉梨幼果冻害的效果研究

作  者：
马敏;张颜茹;张苏玲;张臻;樊进补;吴昌琦;刘志强;任雅倩;张绍铃;王利斌
单  位：
南京农业大学
关键词：
梨;幼果;霜冻;防冻剂;冻害
摘  要：
为了解决梨花期前后霜冻(俗称"倒春寒")给果农带来的经济损失,本研究以翠玉梨幼果(盛花后12 d)为试材,利用人工气候室模拟自然界的霜降过程,研究了10种防冻剂——必博PBO、天达2116、调环酸钙、水杨酸(SA)、维生素E+丙三醇、脱落酸、6-苄氨基腺嘌呤(6-BA)、甜菜碱、脯氨酸、γ-氨基丁酸和壳聚糖对减轻梨幼果冻害的效果。结果表明,随着低温胁迫时间的延长,幼果膜脂过氧化程度逐渐增加。霜冻前采用0.5 mg/L 6-BA或3.62 mmol/L SA处理均可有效抑制丙二醛(MDA)的积累,减轻膜脂过氧化伤害,减轻幼果冻害。对筛选出来的抗冻剂进行组合和验证,发现0.5 mg/L 6-BA+3.62 mmol/L SA处理对减轻翠玉梨幼果冻害的效果最好。
译  名：
Effects of Different Antifreeze Treatments on the Freezing Damage of Young "Cuiyu" Pear
作  者：
MA Min;ZHANG Yan-ru;ZHANG Su-ling;ZHANG Zhen;FAN Jin-bu;WU Chang-qi;LIU Zhi-qiang;REN Ya-qian;ZHANG Shao-ling;WANG Li-bin;Nanjing Agricultural University;
关键词：
Pear;;young fruit;;frost;;antifreeze;;freeze injury
摘  要：
In order to solve the unexpected economic losses caused by frosts(commonly known as late spring coldness) before and after the pear flowering period, the "Cuiyu" pear young fruit(12 d after flowering) was used as test material, and the artificial climate chamber was used to simulate the natural frost. This paper studied 10 kinds of antifreeze(Bibo PBO, Tianda 2116, calcium cyclate, salicylic acid(SA), vitamin E+glycerol, abscisic acid, 6-Benzylaminopurine(6-BA), betaine, proline, gamma-aminobutyric acid and chitosan)had effects on reducing the damage of young fruit. The results showed that with the prolongation of low temperature stress, the degree of lipid peroxidation in young fruit gradually increased, which was manifested by the accumulation of malondialdehyde(MDA) in the fruit. Treatment with 0.5 mg/L 6-BA or 3.62 mmol/L SA before frost can effectively inhibit the accumulation of MDA, reduce membrane lipid peroxidation, and reduce the damage of young fruit. Further, the selected antifreeze was combined and verified, and it was found that 0.5 mg/L 6-BA combined with 3.62 mmol/L SA treatment had the best effect on alleviating the "Cuiyu" pear fruit freezing damage.

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