Abstract
Soybean (Glycine max L. Meril) is one of the most important and well recognized oil seed and grain legume crops of the world. A field experiment was conducted to investigate the efficacy of BAU-Biofungicide (Trichoderma harzianum), Trichoderma based IPM Lab bio-pesticide and Bavistin against anthracnose of soybean. Five soybean cultivars viz. Sohag, BARI Soybean-6, BINA Soybean-1, BINA Soybean-2 and BINA Soybean-3 were used in this experiment. The field experiment was carried out following Randomized Complete Block Design in the field laboratory of the Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh. Anthracnose infections were found initially lower at 80 DAS, moderate infections were found at 95 DAS and the highest infections were recorded at 110 DAS in case of all the tested five soybean varieties. The highest percent reduction of anthracnose infected plants/plot over control was observed in Bavistin treated plot (76.25%) that was near to BAU Biofungicide treated plots. All the growth parameters of soybean plants such as plant height, number of pods/plant, seed weight/plant, yield/plot and yield/ha were increased significantly in BAU-Biofungicide treated plots that showed best performance in compare to IPM Lab bio-pesticide (2%) and Bavistin @ 0.2% when these treatments were applied two times with 15 days interval. However, anthracnose incidence was reduced significantly when all the treatments applied in this experiment and the effect of BAU-Biofungicide was found almost similar to Bavistin in reduction of anthracnose of soybean.Res. Agric., Livest. Fish.2(3): 419-426, December 2015
Highlights
Soybean is called the “golden bean” or “Miracle bean” or “Protein hope of future” because of its high nutritive value
The seeds of Sohag and BARI Soybean-6 were collected from Regional Oil Research Center, Bangladesh Agricultural Research Institute (BARI) Joydebpur, Gazipur and seeds of BINA Soybean-1, BINA Soybean-2 and BINA Soybean-3 were collecyed from Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh
The result of the present study indicates that the BAU-Biofungicide (Trichoderma harzianum suspension) showed better result compared to the IPM Lab Biopesticide in reducing incidence of anthracnose of soybean and promoting both vegetative and reproductive growth of soybean
Summary
Soybean is called the “golden bean” or “Miracle bean” or “Protein hope of future” because of its high nutritive value It is a major food and feed source that mainly cultivated for high-quality oil (20%) and high protein content (40%) (Napoles et al, 2009, Osho, 2003). Two essential fatty acids namely linoleic and linolenic are found in soybeans, aid in the body’s absorption of vital nutrients, and regulate smooth muscle contraction, blood pressure and the growth of cells. It can meet up minerals like Ca and P including vitamin A, B, C, D and other different nutritional needs (Rahman, 1982). The nodule soybean can fix 94Kg nitrogen in a hectare in one season (Satter, 2001)
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