[1]尤雯,张波,朱丽梅*,等.南京地区银杏叶枯病的发生及病原调查[J].江苏林业科技,2021,48(01):37-40.[doi:10.3969/j.issn.1001-7380.2021.01.008]
 You Wen,Zhang Bo,Zhu Limei*,et al.Occurrence and diagnosis of Ginkgo biloba leaf blight in Nanjing[J].Journal of Jiangsu Forestry Science &Technology,2021,48(01):37-40.[doi:10.3969/j.issn.1001-7380.2021.01.008]
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南京地区银杏叶枯病的发生及病原调查()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第48卷
期数:
2021年01期
页码:
37-40
栏目:
试验研究
出版日期:
2021-03-05

文章信息/Info

Title:
Occurrence and diagnosis of Ginkgo biloba leaf blight in Nanjing
文章编号:
1001-7380(2021)01-0037-04
作者:
尤雯张波朱丽梅*徐敏
金陵科技学院, 江苏 南京 210036
Author(s):
You Wen Zhang Bo Zhu Limei* Xu Min
Jinling Institute of Technology, Nanjing 210036, China
关键词:
银杏叶枯病病原菌分离鉴定南京
Keywords:
Ginkgo bilobaLeaf blightPathogenic microbe IsolationIdentificationNanjing
分类号:
Q93-331;S664.3;S763.11
DOI:
10.3969/j.issn.1001-7380.2021.01.008
文献标志码:
A
摘要:
于2017年10月—2018年11月间,对银杏叶枯病的发生以及银杏叶枯病发病原因进行了调查,结果表明:银杏叶枯病在南京地区发生较为普遍。从5月开始发生(平均病情指数为7.28),7,8月病害达高发期(平均病情指数分别为24.15,41.57),10月病害发生较为严重,此时大量病树叶片枯黄脱落,平均病情指数达到62.35;对采集的银杏叶枯病病叶进行标本镜检,并参考相关的资料,认为叶枯病病原或致病因素包括真菌性病原、细菌性病原和环境因素,而真菌性病原包括链格孢菌、镰刀菌、盘多毛孢菌、盘圆孢和叶点霉菌;另有部分患病植株叶片,未发现和分离出相关病原。推测可能是由环境因素或营养条件所造成的非侵染性病害,具体原因尚需进一步研究。
Abstract:
he Ginkgo leaf blight occurence and its pathogenic factors were investigated from October 2017 to November 2018. The results showed that: 1.Gingko leaf blight was relatively common in Nanjing area, where it began to occur in May. The average disease index in May was 7.28. The disease entered the period of high incidence in July and August, with average disease index of 24.15 and 41.57 respectively. The disease occurred more severely in October when a large number of ginkgo leaves withered and shed. The average disease index in October was 62.35. 2. By the way of microscopic examination and pathogens separation, and referring to the relevant data, it was found that the pathogenic factors of leaf blight might include fungi, bacteria and environmental factors. Fungal pathogens might include Alternaria sp,Fusarium sp,Pestalotia sp,Gloeosporium sp and Phyllosticta sp.Yet, the related pathogen of some diseased leaves not been isolated, they might be caused by environmental factors or nutritional conditions. The specific reasons need further study.

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备注/Memo

备注/Memo:
收稿日期:2020-07-19;修回日期:2020-09-10
基金项目:江苏省大学生创业创新计划项目(201613573037X)
作者简介:尤雯(1997- ),男,江苏南京人,硕士研究生。主要从事银杏病害的相关研究。 E-mail:1421056342@qq.com。
*通信作者:朱丽梅(1972- ),女,甘肃酒泉人,教授,博士。主要从事园艺植物病虫害及防治的教学与科研工作。E-mail:910703164@qq.com。
更新日期/Last Update: 2021-03-25