敌委丹种子处理对小麦幼苗生长及茎基腐病的防治效果

doi:10.14088/j.cnki.issn0439-8114.2019.04.010

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (4): 45-47.doi: 10.14088/j.cnki.issn0439-8114.2019.04.010

敌委丹种子处理对小麦幼苗生长及茎基腐病的防治效果

陆宁海, 杨蕊, 吴利民, 霍云风, 郎剑锋, 石明旺, 陈锡岭

河南科技学院资环学院,新乡河南 453003

修回日期:2018-10-15 出版日期:2019-02-25 发布日期:2019-11-26
作者简介:陆宁海(1976-),男,甘肃宁县人,副教授,博士,主要从事植物病害流行与综合防治工作,(电话)0373-3040346(电子信箱) gsninghai@163.com?
基金资助:
国家重点研究计划项目(2017YFD0201704); 国家科技支撑计划项目(2015BAD26B01); 河南省科技攻关项目(172102110023); 河南省高校重点科研项目(17A210004)

Seeding Growth and Control Effect of Difenoconazole Seed Treatment on Wheat Crown Rot

LU Ning-hai,YANG Rui,WU Li-min,HUO Yun-feng,LANG Jian-feng,SHI Ming-wang,CHEN Xi-ling

College of Resources and Environment Science,Henan Institute of Science and Technology,Xinxiang 453003,Henan,China

Revised:2018-10-15 Online:2019-02-25 Published:2019-11-26

摘要/Abstract

摘要： 通过室内试验,研究了敌委丹对小麦种子萌发、促生防病效果。结果表明,敌委丹在合适的浓度下拌种,有促进种子萌发和提高种子活力的效果。当药剂用量为3 mL/kg时,小麦发芽势、发芽指数和活力指数分别为94.72%、34.12和1.46。敌委丹拌种对小麦幼苗有促进生长的效果,当药剂用量为3 mL/kg时,小麦幼苗最大根长和地下部分鲜重分别为20.6 cm和2.21 g/10株,株高和地上部分鲜重分别为22.5 cm和4.83 g/10株。敌委丹拌种对小麦茎基腐病具有良好的防治效果,拌种后小麦茎基腐病的病情指数与对照相比显著降低,药剂用量为5 mL/kg时,发病率仅为9.33%,病情指数为6.58,防效高达90.93%。

关键词: 小麦茎基腐病, 敌委丹, 种子萌发, 种子活力, 抗病性

Abstract: The effect of difenoconazole on wheat seed germination and seedling growth for controlling disease was studied through laboratory test. The results showed that difenoconazole could promote seed germination and improve seed vigor under the appropriate concentration. When the dosage of reagents for 3 mL/kg, wheat germination potential, germination index and vigor index were 94.72%,34.12 and 1.46, respectively. Seed coating by difenoconazole had promoted seedling growth effect, which wheat seedling the largest root length and underground part fresh weight were 20.6 cm and 2.21 g/10 strains,and which plant height and fresh weight above ground were 22.5 cm and 4.83 g/10 strains when the dosage of reagents for 3 mL/kg. Seed coating by difenoconazole had good control effect to wheat crown rot, which the disease index reduced significantly compared to contrast. The incidence, disease index and control effect were only 9.33%,6.58 and 90.93% when the dosage of reagents for 5 mL/kg.

Key words: wheat crown rot, difenoconazole, seed germination, seed vigor, resistant

中图分类号:

S435.12

陆宁海, 杨蕊, 吴利民, 霍云风, 郎剑锋, 石明旺, 陈锡岭. 敌委丹种子处理对小麦幼苗生长及茎基腐病的防治效果[J]. 湖北农业科学, 2019, 58(4): 45-47.

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敌委丹种子处理对小麦幼苗生长及茎基腐病的防治效果

Seeding Growth and Control Effect of Difenoconazole Seed Treatment on Wheat Crown Rot

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