期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：5
页码：7378
DOI：10.15680/IJIRSET.2016.0505132
出版社：S&S Publications
摘要：Fusarium wilt diseases of vegetable crops are the major challenges for vegetable production. To explorealternative control measure of Fusarium wilt, antifungal activities of nickel nanoparticles were investigated forcontrolling two forma specials of Fusarium oxysporum, F. oxysporum f. sp. lactucae and F. oxysporum f. sp.lycopersici, on lettuce and tomato under in vitro and greenhouse conditions. Under in vitro condition, nickelnanoparticles at the concentration of 100 ppm significantly inhibited the mycelial proliferation and sporulationactivities of fungal pathogens. The inhibition of mycelial growth of F. oxysporum f. sp. lactucae and F. oxysporum f.sp. lycopersici was 60.23 and 59.77%, respectively. While under greenhouse condition, nickel nanoparticles at theconcentration of 50 ppm caused the highest reduction in disease severity and the reduction was 58.4% and 57.0% onlettuce and tomato, respectively. However, when the plants were inoculated with fungal pathogens before application ofnickel nanoparticles, the concentration of 50 ppm was found more effective than 100 ppm of NiNPs in relation to planthealth. The application of nickel nanoparticles at 100 ppm significantly retarded the plant growth as compared toapplication of nickel nanoparticles at 50 ppm in all combinations of treatments. So, we conclude that the application ofNiNPs as antifungal agents against Fusarium will be better with concentration of 50 ppm. This study suggests thatnickel nanoparticles could be used to control Fusarium wilt. However, further field studies are needed to verify theirdisease control efficiency and effects on soil physicochemical properties and other beneficial soil microorganisms.
