Occurrence dynamics of ratoon stunting disease in various ecological sugarcane planting regions in Yunnan

IF 2.5 3区农林科学 Q2 Agricultural and Biological Sciences

Tropical Plant Pathology Pub Date : 2024-03-07 DOI:10.1007/s40858-024-00644-6

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引用次数: 0

Abstract

Ratoon stunting disease (RSD) is a pervasive bacterial disease in the world, which seriously affects the yield and quality of sugarcane. To clarify the incidence of RSD in various ecological zones, different varieties, and crop cycles in Yunnan, 214 samples were collected from three planting regions situated in the North Tropic Humid and South Subtropical Humid zones. These samples underwent molecular detection for RSD. The results showed that the highest positive detection rate of RSD was 88.57% in Longzhang in the South Subtropical Humid zones. RSD was detected in 18 main planting or promoting varieties, the positive detection rate was 42.86%-100%. For the crop cycles, RSD occurred in different degrees from newly planted to fourth ratoon crop. The results reveal significant differences in RSD incidence dynamics among sugarcane varieties, crop cycles, and ecological areas. Notably, during the transition from newly planted to second ratoon crop, RSD incidence increased with the duration of ratoon years in different ecological sugarcane areas. Furthermore, there was a tendency for RSD incidence to increase with successive ratoon years in varieties Yuetang 93-159, Yunzhe 08-1609, Liucheng 05-136, Yunzhe 05-51, Liucheng 03-182, Chuantang 79-15 and Yunzhe 05-49.

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云南不同生态甘蔗种植区矮壮病的发生动态

摘要甘蔗矮缩病（RSD）是世界上普遍存在的细菌性病害，严重影响甘蔗的产量和品质。为了弄清 RSD 在云南不同生态区、不同品种和不同作物周期的发病情况，我们从北热带湿润区和南亚热带湿润区的三个种植区采集了 214 份样品。对这些样品进行了 RSD 分子检测。结果表明，南亚热带湿润区龙章的 RSD 阳性检出率最高，达 88.57%。在 18 个主栽或推广品种中检测到 RSD，阳性检出率为 42.86%-100%。就作物周期而言，从新植到第四轮作，RSD 的发生程度不同。结果表明，甘蔗品种、作物周期和生态区域之间的 RSD 发生动态存在明显差异。值得注意的是，在不同生态甘蔗区，从新种植到第二轮轮作的过渡期间，RSD 发生率随着轮作年限的延长而增加。此外，月塘 93-159、云柘 08-1609、柳城 05-136、云柘 05-51、柳城 03-182、川塘 79-15 和云柘 05-49 等品种的 RSD 发生率有随着连续轮作年数增加的趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tropical Plant Pathology PLANT SCIENCES-

CiteScore

4.50

自引率

4.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Tropical Plant Pathology is an international journal devoted to publishing a wide range of research on fundamental and applied aspects of plant diseases of concern to agricultural, forest and ornamental crops from tropical and subtropical environments.  Submissions must report original research that provides new insights into the etiology and epidemiology of plant disease as well as population biology of plant pathogens, host-pathogen interactions, physiological and molecular plant pathology, and strategies to promote crop protection. The journal considers for publication: original articles, short communications, reviews and letters to the editor. For more details please check the submission guidelines. Founded in 1976, the journal is the official publication of the Brazilian Phytopathology Society.