首页 > 分享 > 鲜食玉米种子包衣对地下害虫的防控以及苗期生长发育的影响

鲜食玉米种子包衣对地下害虫的防控以及苗期生长发育的影响

花匠小妙招
2025-04-05 18:05

摘要： 为研究3种种衣剂对鲜食玉米主要地下害虫的防治效果以及对幼苗生长发育的影响，从而筛选出高效低毒的种衣剂。试验以京科甜183和京科糯2010为试验品种，比较了3.5%满适金＋30%锐胜、福亮（40%溴酰·噻虫嗪种子处理悬浮剂）和50亿孢子/g球孢白僵菌3种种衣剂的室内和田间试验结果。结果表明：各药剂处理对鲜食玉米均不产生药害，出苗安全，没有发现药害植株。种子包衣可提高种子活力和出苗率，其中在3.5%满适金＋30%锐胜处理下，京科甜183的发芽势和发芽率最高，分别达到91.5%和92.75%；京科糯2010在50亿/g球孢白僵菌的处理下发芽率达到最高，为93.00%，发芽势在3.5%满适金＋30%锐胜处理下达到最高，为91.50%。3种种衣剂都能促进幼苗的株高和干物质的积累。对于地下害虫的防治效果，其中50亿孢子/g球孢白僵菌对地下害虫的防治效果最好，对京科甜183和京科糯2010的地下害虫的防治效果达到79.67%和88.67%。为了既能促进植株生长发育又能很好的防治地下害虫，生产中推荐球孢白僵菌与低毒种衣剂菌药混用。

关键词: 鲜食玉米, 种衣剂, 生长发育, 地下害虫

Abstract: The effects of three types of seed coating on control of the main underground pests of fresh corn and development of seedling growth were investigated to screen out the high efficiency and low toxicity seed coating agents using Jingketian 183 and Jingkenuo2010 as test varieties. The three seed coating agents were 3.5% Manshijin+30% Ruisheng, Fuliang (40% bromoyl thiamethoxazine seed treatment suspension), and 5 billion spores/g Beauveria bassiana. All the pesticide treatments did not cause phytotoxicity, indicating their safety for fresh corn. Seed coating improved the vigor and germination rate of seeds. The germinability and germination rate of Jingketian 183 reached the highest of 91.5% and 92.75%, respectively, when the seeds were treated by 3.5% Manshijin+30% Ruisheng. Jingkenuo 2010 showed the highest germination rate (93.0%) when treated by 5 billion/g B. bassiana, and the highest germinability (91.5%) under the treatment of 3.5% Manshijin+30% Ruisheng. The three coating agents increased plant height and dry matter accumulation, while the 5 billion spores/g B. bassiana had the best control of underground pests in Jingketian 183 (79.67%) and Jingkenuo 2010 (88.67%). Therefore, use of B. bassiana in mixture with low toxicity seed coating agents is expected to promote growth and development of plants and control of underground pests.

Key words: fresh corn, seed coating, growth and development, underground pests

中图分类号:

S473

S433.8