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Socio-Economic and Scientific Impact Created by Whitefly-Transmitted,Plant-Virus Disease Resistant Tomato Varieties in Southern India

引用

Journal of Integrative Agriculture 2012年第2期11卷 337-345页

作者： John Colvin N Nagaraju Carlos Moreno-Leguizamon R M Govindappa T B Manjunatha Reddy S A Padmaja neena joshi Peter M Hanson Susan E Seal V Muniyappa Natural Resources Institute University of GreenwichChatham MaritimeKentME4 4TBUnited Kingdom University of Agricultural Sciences G.K.V.K.Bangalore 560065India AVRDC-The World Vegetable Center

Research carried out to assess the impact of open-pollinated Tomato leaf curl virus（ToLCV）-resistant tomatoes and hybrids on the livelihoods of resource-poor farmers in Southern India is described and *** high-yielding ToLCV-resistant tomato varieties were developed initially using conventional breeding and screening techniques involving inoculation by ToLCV-viruliferous whitefly,Bemisia *** 2003 and 2004,respectively,these varieties were released officially by the Karnataka State Seed Committee and the Indian Ministry of Agriculture through notification in the Gazette of *** 2003 to 2005,eleven seed companies bought breeder seed of the ToLCV-resistant varieties and used them to begin breeding F1 hybrids from ***-economic studies carried out to assess the benefits obtained from growing the ToLCV-resistant varieties found that farmers could gain up to 10 times the profit by growing the ToLCV-resistant varieties compared to the pre-existing ToLCV-susceptible *** of ToLCV-resistant tomatoes was also associated with reduced pesticide *** income from tomato sales was prioritised by farmers to pay for children＇s education,better nutrition and *** a joint effort with the commercial seed sector in India,a promotional field day was organised in *** well as the three ToLCV-resistant varieties,62 ToLCV-resistant hybrid tomatoes were exhibited during a farmer-field day by 17 commercial seed companies and several public *** with ToLCV-resistance are now grown widely in South India and seeds of the three open-pollinated varieties have been distributed to more than 12 *** 2007,a conservative estimate of the financial-benefit to cost of the research ratio was already more than 837：1.

关键词： Bemisia tabaci begomovirus international development tomato resistance Tomato leaf curl virus

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