凋萎病对杨梅树体钾元素吸收与分配的影响

doi:10.14088/j.cnki.issn0439-8114.2022.24.024

湖北农业科学 ›› 2022, Vol. 61 ›› Issue (24): 114-116.doi: 10.14088/j.cnki.issn0439-8114.2022.24.024

凋萎病对杨梅树体钾元素吸收与分配的影响

王程安^1,2, 安笑笑³, 任海英¹, 张淑文¹, 孙鹂¹

1.浙江省农业科学院园艺研究所,杭州 310021;
2.宁波市海曙区农业技术管理服务站,浙江宁波 315010;
3.天台县特产技术推广站,浙江天台 317200

收稿日期:2022-03-28 出版日期:2022-12-25 发布日期:2023-01-18
通讯作者: 任海英（1974-）,女,山东临沂人,副研究员,博士,主要从事杨梅病害和逆境防控,（电话）13011217033（电子信箱）renhy@zaas.ac.cn。
作者简介:王程安（1992-）,女,浙江绍兴人,农艺师,硕士,主要从事果树栽培技术推广与研究,（电话）13011217033（电子信箱）chenganwangsilk@163.com。
基金资助:
浙江省科学技术厅重点研发计划项目（2020C02001; 2021C02009）; 浙江省重点研发计划项目（2019C02038）

Effect of twig blight on the absorption and distribution of potassium in bayberry tree

WANG Cheng-an^1,2, AN Xiao-xiao³, REN Hai-ying¹, ZHANG Shu-wen¹, SUN Li¹

1. Institute of Horticulture, Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China;
2. Haishu Agricultural Technology Management Service Station,Ningbo 315010,Zhejiang,China;
3. Tiantai Speciality Technology Popularization Station, Tiantai 317200,Zhejiang,China

Received:2022-03-28 Online:2022-12-25 Published:2023-01-18

摘要/Abstract

摘要： 为了明确凋萎病对杨梅（Myrica rubra）树体钾元素吸收和分配的影响,以杨梅健康株为对照,对发病株有、无病症的当年生新枝的叶片、枝干（树皮和树干）以及2~3年生枝的叶片、枝干（树皮和树干）和根（根皮和根干）的钾元素含量进行了测定,并测定健康株和发病株的根际土壤速效钾含量。结果表明,与对照相比,发病株无病症的嫩叶和老叶、嫩枝和老枝的树皮与树干、根干的钾元素含量分别增加了0.27、0.23、0.21、0.17、0.25、0.17、0.10个百分点,均显著高于健康株;而发病株有病症嫩叶减少了0.20个百分点,发病株根际土壤的速效钾含量减少了42.14 mg/kg,均显著低于健康株。凋萎病严重影响杨梅树体钾元素的吸收与分配。

关键词: 杨梅（Myrica rubra）, 凋萎病, 钾元素, 吸收与分配

Abstract: To identify the effect of twig blight on the absorption and distribution of potassium in bayberry（Myrica rubra） trees, the healthy bayberry was used as a control to determine the contents of potassium in various organs of the symptomatic and symptomless diseased bayberry trees, including the leaves and limbs （barks and trunks） from the annual shoots, leaves and limbs （barks and trunks） from two or three-year-branches, and roots （velamen and root trunk）. The contents of available potassium in rhizosphere soils of healthy and diseased plants were also determined. The results showed that, compared to the control, the contents of potassium in symptomless tender leaves and symptomless old leaves of diseased bayberry trees, symptomless barks and trunks of epicormic branches and old branches, and root trunks of diseased bayberry trees were increased by 0.27, 0.23, 0.21, 0.17, 0.25, 0.17 and 0.10 percentage points, respectively, which were both significantly higher than those of healthy bayberry trees. However, the contents of potassium in symptomatic tender leaves of diseased bayberry trees were decreased by 0.20 percentage points, and the contents of available potassium in rhizosphere soils of diseased bayberry trees were decreased by 42.14 mg/kg, which were both significantly lower than those of healthy bayberry trees. The absorption and distribution of potassium in bayberry trees were seriously affected by twig blight.

Key words: bayberry（Myrica rubra）, twig blight, potassium, absorption and distribution

中图分类号:

S436
S143.3

王程安, 安笑笑, 任海英, 张淑文, 孙鹂. 凋萎病对杨梅树体钾元素吸收与分配的影响[J]. 湖北农业科学, 2022, 61(24): 114-116.

WANG Cheng-an, AN Xiao-xiao, REN Hai-ying, ZHANG Shu-wen, SUN Li. Effect of twig blight on the absorption and distribution of potassium in bayberry tree[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(24): 114-116.

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凋萎病对杨梅树体钾元素吸收与分配的影响

Effect of twig blight on the absorption and distribution of potassium in bayberry tree

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