Green Global
Foundation Journal
...an emerging window for scientific research and publication across the globe
Papers
EFFECT OF INDIGENOUS TRICHODERMA STRAINS ON GROWTH OF TOMATO SEEDLINGS (Pages : 1 - 6)
M.M. ISLAM, S.B. SHAHID, A. AKTER, M.S. HOSSAIN AND M.S.U. BHUIYANTrichoderma spp. are beneficial to agriculture which are mainly used as biological control agents against a wide range of plant pathogens and for their plant growth enhancement capacity. An experiment was carried out with three Bangladeshi native strains namely T. harzianum TR05, T. virens TR06 and T. asperellum TR08 to evaluate the effects on growth of tomato seedlings in green house conditions. Completely Randomized Design (CRD) was followed and each treatment was replicated three times. Tomato seeds and three week old seedlings were inoculated with the above mentioned Trichoderma strains and transplanted into tray filled with autoclaved commercial culture soil. At two weeks after sowing, seedling emergence was monitored to determine effectiveness of the Trichoderma strains on germination. T1 (Application of TR05) recorded highest germination (96.3%) followed by T3 (Application of TR08; 90.0%) and T2 (Application of TR06; 82.0%). At six weeks, the seedlings were compared for number of leaves, shoot length, root length, stem caliper at soil line, fresh weight, dry weight and seedling vigour. The results demonstrated that T. harzianum TR05 strain significantly improved the growth of tomato seedlings among the strains applied. Colonization of roots at 5-week old tomato seedlings was found significant. T1 showed highest colonization (98.7%) followed by T3 (90.3%) and T2 (81.3%). The correlation between all aforesaid characters of tomato seedlings was found significant and (P<0.05) positive. More than 90% correlation was observed between the aforementioned growth characters of tomato seedlings.Download