品种混种方式对大豆胞囊线虫控制作用  

Soybean Cultivar Mixtures for Managing Soybean Cyst Nematode

作　　者：许艳丽[1] 刁琢[1,2] 李春杰[1] 潘凤娟[1] 战丽莉[1] 田中艳[3] 张思佳[1] 胡新[1,4] 

机构地区：[1]中国科学院,东北地理与农业生态研究所,黑土区农业生态院重点实验室,海伦农田生态系统国家野外观测研究站,黑龙江哈尔滨150081 [2]大兴安岭地区农林科学院,黑龙江加格达奇165000 [3]黑龙江省农业科学院大庆分院,黑龙江大庆163316 [4]黑龙江农垦九三管理局植保植检站,黑龙江嫩江161441

出　　处：《土壤与作物》2012年第2期70-78,共9页Soils and Crops

基　　金：黑龙江省科技计划项目(GA09B103-10);黑龙江省自然科学基金项目(C200630)

摘　　要：为了探讨利用作物遗传多样性控制大豆胞囊线虫病效果,在东北黑土区大豆迎茬和15年连作田选择高抗大豆胞囊线虫病品种抗线4号和当地优质高产品种黑农35进行清种、混种及间隔种植比较田间试验。结果显示,抗线4号和黑农35号1∶1混合种植后使土壤中SCN二龄幼虫数量、大豆根表雌虫数量和收获期土壤中SCN卵数量明显减少,低于黑农35清种,与抗线4号接近,对SCN的控制效果在所有混种和间隔种植方式中最好。在迎茬和15年大豆连作田中抗线4号和黑农35号1∶1混合种植产量均为最高,分别较黑农35清种和抗线4号清种增产8.2%～8.8%和2.8%～7.4%。表明抗线虫和非抗线虫品种混种可有效地控制大豆胞囊线虫病危害,并提高大豆产量。图6,表3,参22。The soybean cyst nematode ( SCN) resistant variety Kangxian 4 and local soybean variety Heinong 35 were used for planting alone,mixed planting and interval planting in soybean soybean-maize and continuous cropping ( 15 a) system in Northeast China. This experiment was to examine the effect of using crop genetic diversity to control soybean cyst nematode. The results showed that the soil juvenile 2,cyst on soybean root and SCN eggs at harvesting stage were significantly decreased when the ratio of Kangxian 4 to Heinong 35 was 1∶1,and were all lower than those in Heinong 35 planting field alone,while the result was similar to that of Kangxian 4 planting alone. The control was the most effective in soybean mixed planting and interval planting fields. The soybean yield was the highest in soybean-maize rotation and continuous cropping ( 15 a) system when the ratio of Kangxian 4 to Heinong 35 was 1∶1,and it was higher than that in Heinong 35 planting field alone by 8. 2 % ～ 8. 8 % ,and was higher than that in ratio 4 alone planting field by 2. 8 % ～ 7. 4 % . Mixed planting of SCN-resistant variety and SCN-nonresistant variety can effectively control soybean cyst nematode and improve soybean yield.

关 键 词：大豆胞囊线虫 遗传多样性 抗病品种 混种 

分 类 号：Q938.1+3[生物学—微生物学]