Effects of Sun-drying and Chemical Soaking of Seeds on Rice Seed Germination and the Control of Bakanae Disease
1st author: hzjdsmh@163.com
Received date: 2024-10-19
Online published: 2025-03-12
Rice bakanae disease is one of the important diseases in rice production, occurring from the seedling stage to the heading stage, with particularly severe symptoms during the seedling stage. Currently, the methods for controlling rice bakanae disease are relatively simple, mainly relying on soaking seeds by fungicides. This study investigated the effects of various factors, such as whether to sun the seeds, whether to use fungicides seed soaking, and different seed treatment agents, on seed germination rate and the occurrence of rice bakanae disease. The results showed that sunning the seeds for 1-2 days not only promoted seed germination but also improved the control effect on rice bakanae disease. Among the tested seed treatment agents, 500 times diluted 11% metalaxyl fludioxonil fluxapyroxad had outstanding control effects on rice bakanae disease. It is recommended to sun the seeds before soaking, use 500 times diluted 11% metalaxyl fludioxonil fluxapyroxad as the seed treatment agent for soaking at an appropriate temperature, and then promote germination at a suitable temperature after soaking to ensure seed germination rate and reduce the occurrence of rice bakanae disease.
SHAO Meihong, JIN Shuifeng, ZHAO Lingling, WANG Guorong, WANG Yun, LIANG Mengqi, ZHANG Yilin, HUANG Shiwen . Effects of Sun-drying and Chemical Soaking of Seeds on Rice Seed Germination and the Control of Bakanae Disease[J]. China Rice, 2025 , 31(2) : 87 -91 . DOI: 10.3969/j.issn.1006-8082.2025.02.015
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