Biocontrol efficacy of Trichoderma spp. against wilt tomato caused by Fusarium oxysporum f. sp. lycopersici S. Sundaramoorthy and P. Balabaskar

Biocontrol efficacy of Trichoderma spp. against wilt tomato caused by Fusarium oxysporum f. sp. lycopersici S. Sundaramoorthy and P. Balabaskar

S. MANEVA, S., T. VATCHEV and E. MITEVA, 2013. Effect of lead excess in soil on the accumulation of P, K and Na in infected by Fusarium oxysporum f. sp. radicis-lycopersici in tomato (Lycopersicon esculentum Mill.) plants. Bulg. J. Agric. Sci., 19: 972-980 Pot experiments were conducted in greenhouse of IPAZR, “N. Poushkarov”, Sofia, to study the effects of excess lead (Pb) in soils on the upta...

a study was carried out to determine whether naturally-occurring weeds and other cultivated plants in tomato growing regions could act as symptomless reservoirs of infection to fusarium oxysporum f. sp. lycopersici. a numher of f. oxysporum isolates from weeds and oubergines were used in this investigation. a susceptible tomato cultivar was used for comparison. the plants were artificially ...

In vitro toxicological influence of culture filtrates of Fusarium oxysporum f. sp. lycopersici (Sacc.) Snyder & Hans was investigated on seed germination, seedling growth and physiology of tomato (Lycopersicum esculentum Mill.) under chromium(VI) stress. Original culture filtrates of the fungus and three concentrations of Cr(VI) viz. 50, 75 and 100 mg L1 were used in laboratory bioassays either...

Tomato (Lycopersicon esculentum Mill.) seedlings, susceptible (cv. Pearson A-I Improved) and resistant (cv. Pearson Improved) to race 1 Fusarium oxysporum f. sp. lycopersici (Sacc.) Snyd &Hans., were inoculated with Meloidogyne javanica (Trueb) Chitwood second-stage juveniles and 3 weeks later with race 1 F. oxysporum f. sp. lycopersici spores. One week after fungal inoculation, no fungus was v...

Agrobacterium tumefaciens stimulated and Fusarium oxysporum f. sp. lycopersici inhibited development and reproduction of Meloidogyne incognita when applied to the opposite split root of tomato, Lycopersicon esculentum cv. Tropic, plants. The lowest rate of nematode reproduction occurred after 2,000 juveniles were applied and the fungus was present in the opposite split root. The effects of all ...

A Gram-negative bacterial isolate, named PG4, was recovered from the rhizosphere of a tobacco plant (Nicotiana tabacum cv. Burley) and was identified as Lysobacter capsici based on the sequencing and phylogenetic analysis of 16S rRNA and characteristics in the Biolog Identification System. Strain PG4 showed chitinase and protease activity and was able to inhibit the growth of a broad range of p...

Fungal pathogenic attacks are one of the major threats to the growth and productivity of crop plants. Currently, instead of synthetic fungicides, the use of plant growth-promoting bacterial endophytes has been considered intriguingly eco-friendly in nature. Here, we aimed to investigate the in vitro and in vivo antagonistic approach by using seed-borne endophytic Bacillus amyloliquefaciens RWL-...