Sushan Chowhan
Adaptive Research and Extension Division, Bangladesh Institute of Nuclear Agriculture (BINA), Sub-station, Khagrachari-4400, Bangladesh
M.Raisul Haider
Bangladesh Institute of Nuclear Agriculture, BAU campus, Mymensingh-2202, Bangladesh
A.F.M.Feroj Hasan
Adaptive Research and Extension Division, Bangladesh Institute of Nuclear Agriculture, BAU campus, Mymensingh-2202, Bangladesh
Md. Imdadul Hoque
Adaptive Research and Extension Division, Bangladesh Institute of Nuclear Agriculture, BAU campus, Mymensingh-2202, Bangladesh
Md. Kamruzzaman
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, BAU campus, Mymensingh-2202, Bangladesh
Rigyan Gupta
Bangladesh Institute of Nuclear Agriculture (BINA), Sub-station, Khagrachari-4400, Bangladesh
Aman rice (rainfed), Hill cultivar, Growth characteristics, Duration, Yield
At farmer’s field of Satvaiya para under Khagrachari Sadar upazila
Crop-Soil-Water Management
The study was conducted at farmer’s field of Satvaiya para under Khagrachari Sadar upazila during the period of July 2016 to November 2016. The experimental field was typical rice growing medium high land of clay-loam soil and it is situated in the Agro ecological Zone (AEZ) 29(FRG, 2012), i.e., Northern and eastern hills. The geographical situation of the experimental field was subtropical climate characterized by moderately high temperature and heavy rainfall during kharif season (March to October) and low rainfall and low temperature during the rabi season (November to February). It was a typical rice growing medium high land of clay-loam with grey colored and moderately acidic in nature. Randomized Complete Block Design (RCBD) with three replications was followed to setup the experiment. Studied field was firstly divided into three equal blocks and each block was further divided into seven unit plots. The size of unit plot was 10 m2(4 m ?2.5 m). Total number of plots were twentyone. Block to block distance was 1.0 m and plot to plot was 50 cm. Five modernvarieties viz. Binadhan-7, Binadhan-13, Binadhan-16, Binadhan-17, BRRI dhan71 and two local cultivars viz. Chakka Panja and Binnidhan were used. Pre germinated seed were sown in the wet seedbed during aman season on 2nd July, 2016. Transplanting was done with three seedlings per hill maintaining 20 cm hill to hill and 20 cm line to line spacing on 2nd August, 2016. The experimental plot was uniformly fertilized (FRG, 2012) with Urea, TSP, MoP, Gypsum and Zinc sulphate @ 130, 50, 80, 44.5 and 2.0 kg/ha respectively. The total TSP, MoP, Gypsum, Zinc sulphate, one third of Urea were applied as basal dose and Furafuran 5G @10 kg/ha was mixed with these fertilizer and applied to the experimental field to control soil borne pest. The rest of the urea was top dressed at two equal split doses at 30 days after transplanting (DAT) and at 50 DAT. Virtako @ 75g/ha was applied with two split doses of urea to prevent stem borer infestation. Rifit 500 EC @ 988mL/ha was applied as pre-emergence weedicide to control weeds. Two hand weeding were done to check weed infestation in the experimental field at 25 DAT and 40 DAT. No major irrigation was applied as aman rice is grown in rainfed condition by farmers. Single irrigation by flood irrigation method was given at dough stage. During the experimentation fungal diseases were controlled by applying Amistar Top @ 500mL/ha and EminentPro @ 790mL/ha. Some insect pest like grass hopper and rice bug were controlled by spraying Syfanon 57 EC @ 988mL/ha. Binadhan-16 was harvested on 9th October, 2016; Binadhan-17 was harvested on 14th October, 2016; Binadhan-7 was harvested on 19th October, 2016; BRRI dhan71 was harvested on 21st October, 2016; Chakka Panja was harvested on 9th November, 2016; Binnidhan was harvested on 20th November, 2016 and at last Binadhan-13 was harvested on 23rd November, 2016. Randomly 10 hill were selected from unit plot and plant data were recorded after final harvest on-Plant height (cm), Days to fifty percent flowering, Number of effective tillers/hill, Number of non-effective tillers/hill,Total tillers/hill,Panicle length (cm), Number of filled spikelets/panicle, Number of unfilled spikelets/panicle, Sterility percent, 1000 seed weight (g), Dry straw weight (g), Root length/plant (cm2), Days to maturity, Grain yield (t/ha), Straw yield (t/ha), Biological yield (Grains yield + straw yield) and Harvest index (HI)% was calculated on the basis of adjusted grain and straw weight provided by Munshi et al. (2016). The collected data were statistically analyzed using "Analysis of variance technique" with the help of computer package program MSTAT and the significance of mean difference was adjudged by Duncan's Multiple Range Test (Russell, 1986) at 5% level of significance.
J. Biosci. Agric. Res. 13(01): 1074-1086
Journal