FREQUENCY PERCENTAGE OF SOIL FUNGI AND DIVERSITY OF TRICHODERMA SPP. IN THE RHIZOSPHERE SOIL OF SELECTED VEGETABLE CROP FIELDS

PRIYANKA BHATTACHARJEE, SHAMIM SHAMSI, MD ABUL BASHAR

Abstract


An attempt was undertaken to detect the soil fungi and diversity of
Trichoderma spp in the rhizosphere soil of selected vegetable crops. A total of
fifteen fungi viz., Alternaria sp., Aspergillus flavus, A. fumigatus, A. niger, A.
ochraceus, Aspergillus sp., Colletotrichum sp., Curvularia sp., Fusarium sp., Mucor
sp., Penicillium sp., Rhizoctonia solani, Rhizopus sp., Trichoderma sp. and
Syncephalastrum sp. were isolated from rhizospheric soil of brinjal, chili,
cucumber, cabbage and onion in Naogaon district. Except Syncephalastrum sp.,
all the above mentioned fungi including Monilia sp., were isolated from
rhizospheric soil of brinjal, cabbage, chili and tomato of Bangladesh Agricultural
Research Institute (BARI), Joydebpur, Gazipur. A total of eight types of
Trichoderma spp belonging to four species viz., Trichoderma harzianum, T. koningii,
T. reesei and T. viride were isolated from nine vegetable fields from Naogaon
district and BARI. These Trichoderma spp. may be used in the management of
soil borne diseases of vegetable crops.


Keywords


Frequency percentage, Soil fungi, Trichoderma spp, Vegetable crops

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Dhaka University Journal of Biological Sciences ISSN 1021-2787 (Print) 2408-8501 (Online)