EFFECT OF MAGNETIZED WATER WITH SOME NANO-PREPARATIONS ON TOMATO PLANTS INFECTION WITH THE ROOT KNOT NEMATODE MELOIDOGYNE JAVANICA

Document Type : Original articles

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Department of Plant Protection, Faculty of Agriculture, Minia University, Minia, Egypt

Abstract

The irrigation with not-stored magnetized water gave more effect on M. javanica reproduction on tomato than the use of other magnetized water stored at different periods before the application. Where the treatment with non-stored magnetized water, gave a 75% reduction in the final nematode count compared to the control treatment (by using nonmagnetic water) and 61%, 56%, 47% and 21 % reduction when using magnetized water stored for 24 , 48, 72, 96 hours, respectively. Growth of tomato plants infected by M. javanica , improved when irrigated by magnetized water than the control that irrigated with nonmagnetic water. The increase rate % in the weight of tomato shoot over control were 142.9, 100.0, 78.6, 57.1 and 14.3 % by the irrigation with stored magnetized water for 0, 24, 48, 72 and 96  hours stored magnetized water, respectively.
AgNPs prepared with jojoba by magnetized water surpassed other prepared by distilled water in reducing the final population of M. javanica, by 91.8 % but when using distilled water in preparing silver nanoparticles by jojoba, the final nematode count was reduced by 77 % compared to the control. The percentage of increase in tomato shoot weight as a result of using magnetized water to prepare silver nanoparticles with jojoba was 175.0%. As for the silver nanoparticles synthesized with jojoba extract that prepared with distilled water, it gave an increase of 137.5% over the control treatment which was not treated with silver nanoparticles.

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