Abstract
Root rot fungi cause severe losses of crop plants, so the present work was carried out to determine the effect of <em>Aerva javanica </em>parts powder on root infecting fungi of mung bean (<em>Vigna radiata </em>(L.) and cowpea (<em>Vigna unguiculata </em>(L.) Walp.). <em>A. javanica </em>parts (stem, leaves and flower) were used as soil amendments at 0.1, 1 and 5% to check the effectiveness on growth parameters. All the plant parts showed a significant reduction in root rot fungi like <em>Fusarium </em>spp., <em>Rhizoctonia solani </em>Kuhn, and <em>Macrophomina phaseolina </em>(Tassi) Goid. It was noted that germination percentage, fresh weight, leaf area and number of nodules were significantly higher and the inhibitory effect on root rot fungi increased when the soil was amended with <em>A. javanica </em>leaves at 1%. Thus, among all the treatments, <em>A. javanica </em>leaves at 1% were found to be the most effective against root rot fungi.
Highlights
Biological treatments provide longer protection to the crop compared to fungicidal seed treatment
Schroth and C o o k (1963) tested three bean varieties for variation in susceptibility to pre-emergence damping off caused by Rhizoctonia solani, Fusarium solani, and Pythium spp. as well as for the amount of seed exudation and they suggested that exudates influence the incidence of pre-emergence damping-off by providing fungi with nutritive substances necessary for germination and growth in soil
The present study reports the effect of soil amendment with Aerva javanica in the control of root infection caused by Fusarium spp., R. solani and M. phaseolina in mung bean and cowpea crops
Summary
Biological treatments provide longer protection to the crop compared to fungicidal seed treatment. Several fungi have been recorded as causal pathogens of root-rot and wilt diseases like Rhizoctonia solani and Fusarium solani (Abdallah , 1969; A b o u - z e i d et al 1990; A b o u - z e i d et al 1997). Schroth and C o o k (1963) tested three bean varieties for variation in susceptibility to pre-emergence damping off caused by Rhizoctonia solani, Fusarium solani, and Pythium spp. as well as for the amount of seed exudation and they suggested that exudates influence the incidence of pre-emergence damping-off by providing fungi with nutritive substances necessary for germination and growth in soil. Macrophomina phaseolina is the causal agent of charcoal root rot, a pathogen affecting agricultural and forest crops (Shaner et al 1999), with more than 500 susceptible hosts (Wyllie et al 1984)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
