effect of some soil amendments on yield and disease incidence in peanut (arachis hypogaea l)

Abstract: Greenhouse and field experiments were carried out in sandy soil at Ismailia Agricultural Experiment Research Station to determine the effect of five soil amendments on peanut yield and its diseases incidence. Yield components and quality in addition to pre-and post-emergence damping-off, pod rot and nematode incidence were determined in two peanut cultivars (Gregory and Giza 6) using split-plot design with four replicates.
The results indicated that the Gregory cultivar surpassed, significantly, Giza 6 regarding plant growth parameters, yield and yield components. It was also less susceptible to pre- and post-emergence damping-off pathogens and nematode infection in 2003 and 2004 growing seasons. Adding gypsum increased plant height, number of branches/plant, 100-seed weight, shelling percentage, pod weight and oil yield followed by farmyard manure and wheat straw for most of these characters.
Fusarium spp., Macrophomina phaseolina, Rhizoctonia solani, Sclerotium rolfsii, Aspergillus spp., Pythium spp. and Meloidogyne spp. were isolated from peanut cultivated in Ismailia Agric Res. Station. Amending soil with gypsum gave the highest reduction of F. solani, M. phaseolina, R. solani and S. rolfsii incidence on the damped-off seedlings and rotted pods in greenhouse. Also, gypsum was the most effective treatment in the field experiments reducing the pre-, post-emergence damping-off, pod rots and nematode infections in both cultivars in the two tested growing seasons. There was a significant interaction between peanut cultivars and treatments in seven out of eleven studied characters in their combined data.
The foreign cultivar, Gregory, was the best in all characters than the local one, Giza
6, So it is recommended to be cultivated in that area and could be evaluated in other peanut producing areas of Egypt. Also, the promising soil amendments should be considered in the integrated pest management and peanut production enhancement programs.
Key words: soil amendments, peanut, damping-off, pod rots and nematode infection.
Publication year 2007
Pages 630-650
Availability location معهد بحوث المحاصيل الحقلية 9- شارع الجامعة- الجيزة
Availability number
Organization Name
serial title Egypt. J. of. Appl. Sci.,
Author(s) from ARC
Agris Categories Agriculture - General aspects
Arachis hypogaea.
Publication Type Journal