Title: Effect of Cultivar Mixture on Growth and Developoment of Soybean Inoculated with Soybean Cyst Nematode
Abstract: Soybean varieties mixture was used in this paper to control soybean cyst nematode(SCN),the SCN resistant cv.Kangxian No.4 and susceptible cv.Heinong 35 were the experimental materials.The aim was to find the effect of cultivar mixture and inoculation SCN on growth of soybean and roots lixivium of Kangxian-4 on growth of Heinong 35.SCN inoculation decreased plant height,length of taproot and number of branch root for both Kangxian No.4 and Heinong 35,and the harm degree of Heinong 35 was severe.Cultivar mixed planting could alleviate the harm of SCN,compared with Heinong 35 inoculation treatment,the plant height,fresh weight and taproot length increased by 16.9%,11.4%,11.9% and 22.2%,respectively;while cultivar mixed planting increased main root length by 9.3% compared with Kangxian No.4 inoculation treatment.Root leach liquor of Kangxian No.4 increased the tested indexes of Heinong 35 by 0.1%-8.4% and 9.7%-39.4% for without and with SCN inoculation treatment,suggesting the interaction of roots lixivium could inhibit the harm of SCN and promote the growth of SCN susceptible soybeans.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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