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A total of 25 garlic (Allium sativum L.) germplasm were collected from different location of Bangladesh and also from different countries of the world. Each germplasm was planted in each plot of 1m2 at the Allium Field Laboratory, Horticulture Farm, Bangladesh Agricultural University, Mymensingh. This study was conducted during October, 2010 to March, 2011 in the field, using randomized complete block design with three replications. All germplasm were characterized on number of leaves, height of plant, leaf length, fresh weight of leaf, dry weight of leaf, number of cloves per bulb, length and diameter of bulb, fresh weight of bulb, dry weight of bulb, yield per plot and yield per hectare. Analyses of variances showed that garlic germplasm with different origins were significantly different for all characters. Different germplasm resulted better performances but germplasm G49 from Vietnam gave the highest results in respect of number of leaves per plant (10.63), leaf length (43.57 cm), fresh leaf weight (92.47g), dry leaf weight (6.13g), fresh weight of bulb (21.37g), total number of cloves per bulb (42.13), bulb diameter (4.13cm), fresh weight of bulb (21.37g), dry weight of bulb (5.73g) and yield (9.83 t/ha) which could help future researchers in garlic selection program and improvement of yield.

A field experiment was conducted at the farm of Hill Tract Agricultural Research Station, Ramgarh, Khagrachari Hill District during Rabi season of 2010-11 and 2011-12 to determine the optimum sowing time for better yield of green cob as well as fodder of sweet corn (var. BARI Sweet corn-1) in the hilly region.

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The experiment was conducted at the RARS, Jamalpur during rabi 2019-2020 to find out the suitable planting time and increase production and economic return. Tomato variety viz. V1 = BARI Tomato-14, V2 = Udyan were considered as factor A and five sowing dates viz. S1 = 25 August, S2 = 15 September, S3 = 05 October, S4 = 25 October, S5 = 15 November considered as factor B. The experiment was laid out in RCBD (Factorial) with three replications. The yield of tomato was significantly affected by different sowing dates and tomato verities. Udyan and BARI Tomato-14 with 25 October combination and 05 October combination were suitable combinations for maximum yield of tomato. These combinations may be profitable in case of early growing, proper market price, seeds were available for planting, less infestation of virus and bacterial wilt.