两种明尼苏达被毛孢对大豆胞囊线虫及大豆生长的影响(英文)  

Effects of Two Hirsutella minnesotensis on Soybean Cyst Nematode and Soybean Growth

作　　者：钱洪利[1,2] 李淑娴[3] 许艳丽[1] 李春杰[1] 孙玉秋[1,4] 

机构地区：[1]中国科学院东北地理与农业生态研究所黑土农业生态重点实验室,黑龙江哈尔滨150081 [2]中国科学院南京土壤研究所,土壤与可持续农业国家重点实验室,江苏南京210008 [3]美国农业部美国农业研究局作物遗传与产品研究部,斯通维尔孟菲斯38776 [4]中国科学院研究生学院,北京100049

出　　处：《大豆科学》2011年第2期266-271,共6页Soybean Science

基　　金：Natural Science Foundation of Heilongjiang Province of China(C200630);Knowledge Innovation Program of The Chinese Academy of Sciences(KSCX1-YW-09-09);National Natural Science Foundation(30971900)

摘　　要：通过不同处理的接种试验研究了2种明尼苏达被毛孢对大豆胞囊线虫种群分布和大豆生长发育的影响。结果表明:接种35 d后,与空白对照相比,接种明尼苏达被毛孢1-10和HLJ07-21-3后大豆植株鲜重分别增加了30.98%和27.66%。明尼苏达被毛孢显著降低了(P<0.05)线虫卵、根部雌虫和土壤中胞囊的数量。与对照相比,2种明尼苏达被毛孢分别降低(P<0.05)虫卵密度63.7%和46.7%,与只接种大豆胞囊线虫处理相比,1-10和HLJ07-21-3使总线虫数量分别降低43.6%和35.8%,综合分析1-10能更为有效地降低线虫种群数量。Hirsutella minnesotensis is a endoparasitic fungi in juveniles of soybean cyst nematodes（SCN）.In this study,the effects of two H.minnesotensis isolates on population distribution of SCN and soybean growth were evaluated.Experiments were conducted to inoculate with either 0.4 g fresh mycelium of Hirsutella minnesotensis alone,9 000 eggs of soybean cyst nematode alone,or both treatments and no-treatment in 300 cm3 autoclaved soil in greenhouse.Thirty-five days after inoculation on soybean,the fresh weight of soybean plant inoculated with H.minnesotensis isolates 1-10 and HLJ07-21-3 increased by 30.98% and 27.66%,respectively.Hirsutella minnesotensis significantly reduced the number of SCN egg,root female incect and soil cyst.Compared with CK,isolates 1-10 and HLJ07-21-3 significantly（P〈0.05） decreased the densities of egg by 63.7% and 46.7%,respectively.Moreover,compared with only inoculated with SCN,they reduced the total number of nematode（sum of eggs and J2） by 43.6% and 35.8%,respectively.In conclusion,isolate 1-10 could reduce the nematode population more efficiently than HLJ07-21-3.

关 键 词：明尼苏达被毛孢 真菌寄生 大豆胞囊线虫 生物防治 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]