Biological control of chickpea wilt caused by fusarium oxysporum f. sp. ciceris
2010
Yousif, F.A., University of Nile Valley, Atbara (Sudan). Faculty of Agriculture | Suliman, W.S., Agricultural Research Corporation, Hudeiba Research station, Hudeiba (Sudan)
This study was conducted in an attempt to control chickpea (Ocer arietinum L.) wilt, caused by Fusarium oxysporum f. sp. ciceris, using antagonistic properties of soil microorganisms. It also aimed at avoiding problems resulting from the use of chemical fungicides. A Trichoderma sp. was isolated from the rhizosphere of a resistant chickpea variety (ICCV -2) and a Bacillus sp. from the rhizosphere and rhizoplane of the same variety. Both microorganisms proved to be effective in controlling the disease. In addition, Trichoderma harzianum, which was obtained from Giza Research Station in Egypt, was also antagonistic to Fusarium oxysporum f. sp. ciceris Wilt incidence was significantly reduced when chickpea was grown in pots containing soil mixed with any of the three antagonists or when chickpea seeds were initially treated with the seed-dressing fungicide Vincit at 2 ml/kg seeds. Trichoderma harzianum proved to be the best bioagent as it gave the lowest disease incidence. In the field, the two Trichoderma spp. were as effective as V incit in causing reduction in the wilt incidence. At the higher concentration of 140 g/square m, the two antagonists were effective throughout the growth period, but they were less effective at the lower concentration of 70 g/square m particularly at the seedling stage
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Agricultural Research Corporation