Interaction of Fusarium oxysporum f. sp. ciceri and Meloidogyne javanica on Cicer arietinum

Maheshwari, T.U. and Sharma, S.B. and Reddy, D.D.R. and Haware, M.P. (1997) Interaction of Fusarium oxysporum f. sp. ciceri and Meloidogyne javanica on Cicer arietinum. Journal of Nematology, 29 (1). pp. 117-126.

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Interaction of Meloidogyne javanica and Fusarium oxysporum f. sp. cice~q was studied on Fusarium wilt-susceptible (JG 62 and K 850) and resistant (JG 74 and Avrodhi) chickpea cultivars. In greenhouse experiments, inoculation of M. javanicajuveniles prior to F. oxysporum f. sp. ciceri caused greater wilt incidence in susceptible culfivars and induced vascular discoloration in roots of resistant cultivars. Nematode reproduction was greatest (P = 0.05) at 25 °C. Number of galls and percentage of root area galled increased when the temperature was increased from 15 °C to 25 °C. Wilt incidence was greater at 20 °C than at 25 °C. Chlorosis of leaves and vascular discoloration of plants did not occur at 15 °C. The nematode enhanced the wilt incidence in wilt-susceptible cultivars only at 25 °C. Interaction between the two pathogens on shoot and root weights was significant only at 20 °C, and F. o. ciceri suppressed the nematode density at this temperature. Wilt incidence was greater in clayey (48% clay) than in loamy sand (85% sand) soils. The nematode caused greater plant damage on loamy sand than on clayey soil. Fusarium wilt resistance in Avrodhi and JG 74 was stable in the presence of M. javanica across temperatures and soil types.

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Andhra Pradesh, India
Subjects: Plant Protection > Pests
Soil Science and Microbiology > Soil Sciences
Divisions: Chickpea
Depositing User: Sandhya Gir
Date Deposited: 12 Jan 2011 15:58
Last Modified: 12 Jan 2011 15:59

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