土元粪及浸提液对番茄根结线虫的防治作用

应用生态学报

土元粪及浸提液对番茄根结线虫的防治作用

王晓云¹,王秀峰^1,2,3**,魏珉^1,2,史庆华^1，2,杨凤娟^1，2

(¹山东农业大学园艺科学与工程学院，山东泰安 271018； ^2作物生物学国家重点实验室，山东泰安 271018； ^3农业部黄淮地区园艺作物生物学与种质创制重点实验室，山东泰安 271018)

出版日期:2015-08-18 发布日期:2015-08-18

Eupolyphaga frass and its extracts protected tomato from Meloidogyne incognita infestation.

WANG Xiao-yun¹, WANG Xiu-feng^1,2,3, WEI Min^1,2, SHI Qing-hua^1,2, YANG Feng-juan^1,2

(¹College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China; ²State Key
Laboratory of Crop Biology, Tai’an 271018, Shandong, China; ^3Key Laboratory of Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, Ministry of Agriculture, Tai’an 271018, Shandong, China)

Online:2015-08-18 Published:2015-08-18

摘要/Abstract

摘要： 通过室内生测和盆栽试验，研究了土元粪及其浸提液对南方根结线虫的防治作用，并对土元粪有机挥发物成分及低聚壳聚糖进行了分析.结果表明：土元粪浸提液对根结线虫二龄幼虫具有击倒和致死作用，且随着浓度增加和时间延长而增加.浸提液的浓度≥20%具有明显的抑制线虫卵孵化的作用.盆栽试验表明，番茄根结线虫侵染形成的根结数量随土元粪使用量的增加而减少，相对防治效果随用量增加明显增大，且番茄株高、茎粗和叶片数随着土元粪用量的增加而增加.土元粪成分分析表明，土元粪中低聚壳聚糖含量达4.35%，有机挥发性物质有9大类110种.

Abstract: The control effects of Eupolyphaga (Eupolyphaga sinensis Walker) frass and its extracts on Meloidogyne incognita were studied through laboratory assays and pot experiments, and the organic volatile compounds and oligochitosan contents in the frass were analyzed. The results indicated that the nematode immobility and mortality was significantly increased with increasing the extract concentration and treatment time. Compared with the control, egg hatching was significantly inhibited when the extract concentration was beyond 20%. Pot experiment indicated that root galling of tomato seedlings was reduced and the relative control effect was significantly improved with the increasing frass application. Meanwhile, plant height, stem diameter and leaf number of tomato increased with the increasing dosage of eupolyphaga frass. The ingredients analysis showed that the content of oligochitosan was about 4.35% and there were 9 categories and 110 kinds of volatile compounds in the frass.

王晓云1,王秀峰1,2,3**,魏珉1,2,史庆华1，2,杨凤娟1，2. 土元粪及浸提液对番茄根结线虫的防治作用[J]. 应用生态学报.

WANG Xiao-yun1, WANG Xiu-feng1,2,3, WEI Min1,2, SHI Qing-hua1,2, YANG Feng-juan1,2. Eupolyphaga frass and its extracts protected tomato from Meloidogyne incognita infestation.[J]. Chinese Journal of Applied Ecology.