浙江农业学报 ›› 2024, Vol. 36 ›› Issue (7): 1626-1633.DOI: 10.3969/j.issn.1004-1524.20230802

• 植物保护 • 上一篇    下一篇

杨梅肉葱病发生与营养元素关联分析

闫鸿媛1(), 俞浙萍2, 张淑文2, 倪晓鹏1, 李向男1, 梁森苗2,*()   

  1. 1.台州科技职业学院 园艺系,浙江 台州 318020
    2.浙江省农业科学院 园艺研究所,浙江 杭州 310021
  • 收稿日期:2023-06-27 出版日期:2024-07-25 发布日期:2024-08-05
  • 作者简介:闫鸿媛(1983—),女,山东黄县人,硕士,高级农艺师,主要从事园艺作物研究。E-mail: hongyuanyan@139.com
  • 通讯作者: *梁森苗,E-mail: liangsm78@163.com
  • 基金资助:
    黄岩区农业“揭榜挂帅”项目(JBGS2022-HYNY01);浙江省重点研发计划(2021C02009)

Analysis of the correlation between the occurrence of the flesh scallion disease of Myrica rubra and nutritional elements

YAN Hongyuan1(), YU Zheping2, ZHANG Shuwen2, NI Xiaopeng1, LI Xiangnan1, LIANG Senmiao2,*()   

  1. 1. Taizhou Vocational College of Science & Technology, Taizhou 318020, Zhejiang, China
    2. Institute of Horticulture, Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China
  • Received:2023-06-27 Online:2024-07-25 Published:2024-08-05

摘要:

肉葱病是杨梅果实上发病率较高的一种生理性病害,对成熟期产量及果实品质影响较大,其发病机理尚未见报道。该研究以15年树龄东魁杨梅为试材,选取2个试验点进行取样调查,系统分析杨梅肉葱病不同发病等级果实、叶片中营养元素含量变化规律。随着肉葱病发病等级的增加(0~3级),果实中氮、钾、镁、铁和叶片中钙、铁、硼含量逐渐增加,果实中氮、钾含量增加较为显著,在发病最为严重的3级时,其含量分别达到15.6、19.2 g·kg-1;叶片中钙、铁含量增加较为显著,在发病等级3中分别达到8 825.0、181.4 mg·kg-1,而叶片中磷含量随着发病等级增加,呈逐渐降低趋势,在3级时含量为0.31 g·kg-1。果肉中丙二醛含量在发病等级0时最高达到124.2 μg·g-1,脯氨酸含量随着发病等级增加呈逐步增加趋势并且差异显著,在3级时含量达到119.1 μg·g-1。综上,该研究通过划分东魁杨梅肉葱病发病等级,分析对应果实、叶片中营养元素含量差异,初步探索其发病机理。

关键词: 杨梅, 肉葱病, 营养元素, 发病等级

Abstract:

Flesh scallion disease is a physiological disease with a high incidence rate on Myrica rubra, which has a great impact on yield and fruit quality at maturity, and its pathogenesis has not been reported yet. This study used 15-year Dongkui as the test material, selected 2 experimental points for sampling and investigation, and systematically analyzed the changes in nutrient content in the fruits and leaves of Myrica rubra at different disease levels of flesh scallion disease. With the increase of the onset level of flesh scallion disease (level 0-3), the content of N, K, Mg, Fe in fruits and Ca, Fe, B in leaves increased gradually, and the increase of N and K content in fruits was more significant, and the content reached 15.6 g·kg-1 and 19.2 g·kg-1 in the most serious level 3, respectively. The increase of Ca and Fe content in leaves was more significant, reaching 8 825.0 mg·kg-1 and 181.4 mg·kg-1, respectively, in the onset level 3, while the P content in leaves showed a gradual decreasing trend with the increase of the onset level, and the content was 0.31 g·kg-1 at the onset level 3. The malondialdehyde content in the pulp was the highest of 124.2 μg·g-1 at disease level 0, and the proline content tended to increase gradually with disease level and the difference was significant, reaching 119.1 μg·g-1 at disease level 3. To sum up, this study preliminarily explored the pathogenesis of Myrica rubra cv. Dongkui by dividing the disease incidence level, and analyzing the differences of nutrient elements in corresponding fruits and leaves.

Key words: Myrica rubra, flesh scallion disease, nutrient elements, disease level

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