تاثیر ترکیبات SAR (فسفیت پتاسیم، کود مایع آمینو اسید و ویتالین) بر القای مقاومت در درختان مرکبات آلوده به بیماری CTV در ساری، استان مازندران، ایران.

Resistance induction in plants is one of the new methods in plant disease management. Since chemical struggle against the virus is not effective, the use of substances with the ability to stimulate plant defense mechanisms that do not have environmental hazards seems desirable. As a result, control of this disease is necessary in this region. The aim of survey was the effect of SAR-induced component (Phosphix, Amino-33 Plus and Vitalin) in recovery of growth condition on Citrus tristeza virus infection trees. After confirmation infection of trees to CTV that indirect ELISA was used by IgG-CTV antibody. For the effect of SAR-inducing compounds, spraying with potassium phosphate compounds 2 per thousand, amino acids 2 per thousand and multivitamins with 100 grams per thousand on infection trees and control treatment was done in Thomson cultivar using block designs Complete randomization with eight replication. After one month the data were measured on diameter and length of bud, number and diameter of fruit, and length and width of leaf. Data analysis and comparison of meanings were done by LSD test using SAS software. The result showed that there was a significant difference between SAR and 6 traits in the statistical probability level (P <0.01). Among the treatment, Amino acid and Multivitamin had the most effect on improvement of growth condition including length of bud, length and width of leaf with mean values 404.8, 140.8 and 83.75, respectively. Therefore, due to the role of Amino acid and Multivitamin in protein production process including the expression of PR protein, it PLAYS an important role in induced resistance to citrus tristeza virus.