نوع مقاله : مقاله پژوهشی
نویسندگان
گروه گیاهپزشکی، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج، ایران.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Tomato is attacked by root-knot nematodes (Meloidogyne spp.), reducing crop yield. The negative consequences on the environment and the high cost of producing chemical nematicides limit their application. The use of chemical fertilizers with a direct and indirect effect on the population of nematodes is considered as an environmentally friendly alternative solution. In this research, the effect of recommended minimum and maximum concentrations of Zima (soil conditioner), Nemo (growth enhancer) and Bonza (root growth stimulant) fertilizers was investigated in reducing the damage caused by M. javanica in tomato plants under greenhouse conditions. For this purpose, four-leaf stage tomato seedlings were treated with the concentrations 0.5% and 1% of Zima fertilizer, 0.1% and 0.3% of Nemo fertilizer, and 0.1% and 0.3% of Bonza fertilizer and simultaneously inoculated with 6000 nematode eggs and kept in greenhouse conditions. Sixty days after nematode inoculation, the results showed that nemo at the rate of 0.3% significantly increased the vegetative indices of healthy and infected plants. Also, the concentration of 0.5% Zima fertilizer decreased the number of eggs, galls and eggmasses in the root system, and the reproduction factor of nematode by 57.4, 34.6, 43.7, and 56.9%, respectively, compared to the control. The results of the research showed the importance of modifying the soil structure and compensating essential nutrients to reduce the damage of root-knot nematodes in tomato plants.
کلیدواژهها [English]
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