烯效唑对库尔勒香梨枝叶生长及果实品质的影响

doi:10.6048/j.issn.1001-4330.2020.09.012

摘要/Abstract

摘要： 【目的】 研究不同浓度的烯效唑处理对库尔勒香梨枝条生长和果实品质的影响,为库尔勒香梨优质高效栽培提供理论基础。【方法】 开花后25 d,对库尔勒香梨新梢叶面喷施浓度为50、150、250、350、450 mg/L的烯效唑,定期测量新梢长度、粗度等生长指标,果实成熟后,测定各处理的果实品质。【结果】 烯效唑处理后能有效抑制库尔勒香梨新梢长、节间长、叶面积及叶片叶绿素值的增加,随着处理浓度的升高抑制效果越明显,能够有效促进新梢粗度的增加。150~450 mg/L的烯效唑效果较为明显。烯效唑处理后能够不同程度地增加库尔勒香梨的单果重、可溶性固形物、VC含量及可溶性总糖;随着处理浓度的增大,果实石细胞和粗皮果比率也随之增大,450 mg/L的烯效唑处理后表现最为显著。【结论】 在库尔勒香梨新梢的快速生长期在叶面喷施250~350 mg/L的烯效唑能有效抑制新梢的生长,对果实品质影响不明显,可应用于库尔勒香梨生长发育的调控。

关键词: 库尔勒香梨; 烯效唑; 新梢生长; 果实品质

Abstract: 【Objective】 The purpose of this study is to explore the effects of Uniconazole treatment with different concentrations on the branch growth and fruit quality of Korla Fragrant Pear in the hope of providing theoretical basis for the fruit cultivation.【Method】 On the 25th day after anthesis, Uniconazole with concentration of 50, 150, 250, 350, 450 mg/L was sprayed on the leaves of the new shoots of Korla Xiangli Pear. The growth indexes such as the length and coarseness of the new shoots were measured regularly, and the fruit quality of each treatment was measured after the fruit matured.【Results】 Uniconazole treatment effectively inhibited the increase of shoot length, internode length, leaf area and chlorophyll value of Korla Fragrant Pear. With the increase of treatment concentrations, the inhibition effect was more obvious, and effectively promoted the increase of shoot diameter. The effect of 150-450 mg/L Uniconazole was obvious. After treatment with Uniconazole, the weight of single fruit, soluble solids, VC content and total soluble sugar of Korla Fragrant Pear were increased to some extents; Meanwhile, with the increase of treatment concentrations, the ratio of stone cells to rough fruits was also increased, and the effect of 450 mg/L Uniconazole was the most significant.【Conclusion】 Spraying 250-350 mg/L of Uniconazole on the leaves during the rapid growth period of the new shoots of Korla Fragrant Pear can effectively inhibit the growth of the new shoots, but has no obvious effect on the fruit quality. It can be applied to the regulation of the growth and development of Korla Fragrant Pear.

Key words: Korla Fragrant Pear; Uniconazole; shoot growth; fruit quality

中图分类号:

S661.2

章世奎, 阿布来克·尼牙孜, 王绍鹏, 王亚铜, 孙召展, 樊国全. 烯效唑对库尔勒香梨枝叶生长及果实品质的影响[J]. 新疆农业科学, 2020, 57(9): 1674-1680.

ZHANG Shikui, Abulaike Niyazi, WANG Shaopeng, WANG Yatong, SUN Zhaozhan, FAN Guoquan. Effects of Uniconazole on the Growth of Branches and Leaves and Fruit Quality of Korla Fragrant Pear[J]. Xinjiang Agricultural Sciences, 2020, 57(9): 1674-1680.

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