PMID: 16637193Apr 28, 2006Paper

Susceptibility of six cultivars of bean to different isolates of two species of Fusariumin greenhouse

Communications in Agricultural and Applied Biological Sciences
M Faraji, S M Okhovvat

Abstract

In greenhouse, susceptibility of 6 cultivars of bean (b1, green bean cv. contender, b2, Pinto b. cv. Cos-16, b3, green b. Sun Ray, b4, white b. cv. Daneshkadeh, b5, red b. cv. Naz, b6, red b. cv. Goli) evaluated to 7 isolates of 2 species of Fusarium (6 isolates of F. oxysporum and 1 isolate of F. solani from Varamin, Iran) in 4 pots (as replications) in factoriel experiment. The seedlings of each bean cultivars soaked in a suspension of the fungi (106 spores/ml.) for 5 minutes and transplanted into the pots contained sterilized soil, for control, the roots soaked in distilled water. After 35 days of inoculating and transplanting in greenhouse conditions (with 18-26 degrees C and 12 h light & 12 h dark) the percentage of necrotic roots and stems of the seedlings affected to the isolates of the fungi, also height and weight of them in different treatments datermined and calculated. The results showed that, the average of necrotic percent of the cultivars of bean seedlings grouped in 3 category (b1, b2, b3, b4 with 25.15% in group a and b5, red bean cv. Naz with 16.29% in group b and b6 red bean cv. Goli with 10.02% in group c) based on cluster analysis. But by Dunken method the infection set on 5 groups as respectively b4, 28,72...Continue Reading

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