Bakr RA
Egypt
Research Article
Monitoring of Systemic Resistance Induction in Tomato Against Meloidogyne incognita
Author(s): Bakr RA and Omar A HewedyBakr RA and Omar A Hewedy
The potency of three chemical compounds as resistance inducer in tomato plants against root-knot nematode (Meloidogyne incognita) were evaluated using split root system technique. Salicylic acid (SA), Ascorbic acid (AS) and Dipotassium hydrogen phosphate (DKP) was assessed at three concentrations (10, 20 and 50 mM) and the activity of cytoplasmic peroxidase and Phenol oxidase in tomato leaves were measured. Results indicatedthat application of these inducers significantly reduced all nematode related parameters in tomato plants under greenhouse conditions. Salicylic acid (SA) at 50 mM demonstrated the highest reduction in number of second stage juveniles in 250 mg soil, number of galls, egg masses and females/tomato root system compared to inoculated untreated control. These treatments significantly enhanced plant growth parameters of tomato plants i.e., plant height, root length, fre.. View More»
DOI:
10.4172/2157-7471.1000464