QIAN Hong-li,LI Shu-xian,XU Yan-li,et al.Effects of Two Hirsutella minnesotensis on Soybean Cyst Nematode and Soybean Growth[J].Soybean Science,2011,30(02):266-271.[doi:10.11861/j.issn.1000-9841.2011.02.0266]
两种明尼苏达被毛孢对大豆胞囊线虫及大豆生长的影响
- Title:
- Effects of Two Hirsutella minnesotensis on Soybean Cyst Nematode and Soybean Growth
- 文章编号:
- 1000-9841（2011）02-0266-06
- 分类号:
- S565.1
- 文献标志码:
- A
- 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。
- Abstract:
- 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.
参考文献/References:
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备注/Memo
Foundation item: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).