http://localhost:8080/handle/123456789/2954 Sat, 18 Apr 2026 16:16:03 GMT 2026-04-18T16:16:03Z http://localhost:8080/handle/123456789/3263 AMELIORATION OF SALT STRESS IN RICE PLANT BY THE UTILIZATION OF BIOCHAR KHANAM, MST. MUNNI A Pot experiment was conducted in the experimental shed of Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka during Aman season (2018 July-2018 December) to ameliorate the salinity stress in rice as influenced by different level of biochar. The experiment was laid out in two factor CRD design with four replications. There were 12 treatments (3 salinity level × 4 level of biochar). Mixture of water with commercial NaCl was used as salinity treatments. Salinity level were S 0 = 0 ppm NaCl, S 1 = 1600 ppm NaCl, S ii 2 = 2800 ppm NaCl. Biochar level were B = 0 t ha -1 , B 1 = 2 t ha -1 , B 2 = 4 t ha -1 , B 3 = 6 t ha -1 . The salinity treatments were applied on 20-40 DAT. Salt stress significantly reduced growth and yield including plant height, number of tillers hill -1 , number of effective tillers hill -1 , panicle length, number of filled grains panicle -1 , 1000 grain weight, grain yield , straw yield. With the rise of salinity level the adverse effect of salinity was more clearly visible. Application of 2800 ppm NaCl caused death of rice plant after 60 days of transplanting. Intrusion of 1600 ppm NaCl caused 28% yield reduction 2800 ppm NaCl caused 100% yield loses. However, application of different doses of Biochar ameliorates salt-induced damage in rice plant to a certain extent. Application of Biochar at 4 t ha −1 showed better result than other under 1600 ppm NaCl stress regarding growth and yield. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN AGRONOMY Mon, 01 Jan 2018 00:00:00 GMT http://localhost:8080/handle/123456789/3263 2018-01-01T00:00:00Z http://localhost:8080/handle/123456789/3262 STUDY ON YIELD AND GRAIN QUALITY OF SOME AROMATIC RICE VARIETIES MASUD, TANJIM AL A field experiment was conducted at Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from June to December 2017 with seventeen aromatic rice varieties viz., V 1 = Chiniatap 1, V 2 = Chiniatap 2, V = Kataribhog 1, V 4 = Kataribhog 2, V 5 = BRRI dhan34, V 6 = BRRI dhan37, V = BRRI dhan38, V 8 = BR5/Dulabhog, V 9 = Khoisanne, V 10 = Sadasanne, V 11 7 = Zirabhog, V = Begun bichi, V 13 = Shakkhorkhora, V 14 = Chinigura, V 15 = Kalijira, V = Badshabhog, V 17 16 = Modhumala to study on growth, yield and grain quality of some aromatic rice varieties. The experiment was laid out in a Randomized complete Block Design (RCBD) with three replications. Regarding growth and yield parameters, the highest number of total tillers hill -1 (23.33), leaf area index (5.38), flag leaf length (30.12 cm), number of effective tillers hill -1 (21.67), panicle length (32.00 cm), number of grains panicle (230.3), number of filled grains panicle -1 (212.7), grain yield (3.42 t ha ), straw yield (6.19 t ha -1 ) and number of biological yield (9.610 t ha -1 -1 ) were found in the variety, V (BRRI dhan37) but the highest 1000 grains weight (22.80 g) and the highest harvest index (37.48%) were found in V 17 (Modhumala) and V (BRRI dhan34), respectively. The lowest number of effective tillers hill -1 5 (13.33), panicle length (24.67 cm), grain yield (1.583 t ha -1 ), straw yield (4.083 t ha -1 ), biological yield (5.667 t ha -1 ) and harvest index (27.89%) were found in the variety, V (Modhumala). Regarding quality parameters, the highest hulling percentage (82.86%), milling degree (90.32%) and broken rice percentage (6.257%) found in the variety V 6 17 (BRRI dhan37) but the highest rice breadth (2.757 mm), boiled rice breadth (3.133 mm), protein percentage (10.03%) were found in the variety, V (Modhumala) whereas, the highest (1.727 mm) elongation ratio, rice length (6.217 mm), boiled rice length (8.600 mm), moisture percentage (13.67%), grain length (8.333 mm), milling recovery (72.29%) were found in the variety V 17 2 (Chiniatab 2), V (Kataribhog 1), V 7 (BRRI dhan34), V 8 (BR5/dulabhog), V 9 (Khoisanne) and V (Badshabhog), respectively compared to all other varieties. From the above findings, it can be concluded that the rice variety V (BRRI dhan37) showed the best performance in terms of yield and on the basis of grain quality parameters such as protein and amylose content, V 17 6 (Modhumala) showed best performance. So, variety V (BRRI dhan37) can be considered as best for yield purpose and V 17 6 (Modhumala) for high protein and less amount of amylose among the studied varieties of aromatic rice. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka In partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN AGRONOMY Mon, 01 Jan 2018 00:00:00 GMT http://localhost:8080/handle/123456789/3262 2018-01-01T00:00:00Z http://localhost:8080/handle/123456789/3261 EFFECT OF TRANSPLANTING DATES AND SEEDLING NUMBER HILL -1 ON GROWTH AND YIELD OF AROMATIC RICE VARIETIES RAYHAN, NAHID The experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from July to December, 2018 with a view to study the effect of transplanting dates and seedling number hill -1 on growth and yield of aromatic rice varieties. The experiment consisted of three factors. Factor A: two varieties viz. V 1 (BRRI dhan34) and V 2 (Tulsimala). Factor B: four transplanting date viz. T 1 (14 th August), T 2 (21 st August), T 3 (28 th August) and T 4 (4 th September). Factor C: three treatment of number of seedlings hill -1 viz. S 1 (2 seedling hill -1 ), S 2 (3 seedlings hill -1 ) and S 3 (4 seedlings hill -1 ). The experiment was laid out in RCBD (Factorial) design with three replications. The results showed that variety, transplanting date and number of seedlings hill -1 had the significant effects on plant height, number of tillers hill , dry matter weight hill -1 , total tillers hill -1 , number of filled and unfilled grains panicle , grain yield, straw yield, and biological yield and harvest index. Results showed that V 2 (Tulsimala) transplanted on T 1 (14 th August) with S 2 (3 seedling hill -1 ) produced tallest plant (153.60 cm) and V 1 (BRRI dhan34) transplanted on T 4 (4 th -1 September) with S 2 (3 seedling hill -1 ) provided shortest plant (107.44 cm). Interaction of V 1 gave maximum dry matter weight hill -1 (36.28 g) and minimum from V 2 T 4 S 2 (19.95 g). BRRI dhan34 (V 1 ) transplanted on 28 th August (T 3 ) with 3 seedling hill -1 (S 2 ) provided highest number of total tillers hill -1 (17.51), effective tiller hill -1 (16.33), panicle weight (2.42 g), number of grain panicle -1 (263.7), number of filled grains panicle -1 (206.33), grain yield (5.01 t ha -1 ), and biological yield (13.88 t ha -1 ). V 2 T 1 S 3 provide highest straw yield (10.23 t ha -1 ). Minimum grain yield (2.09 t ha -1 ) and Biological yield (7.55 t ha ) were found with the interaction of V 2 T 4 S 1 . A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN AGRONOMY Mon, 01 Jan 2018 00:00:00 GMT http://localhost:8080/handle/123456789/3261 2018-01-01T00:00:00Z http://localhost:8080/handle/123456789/3260 IMPACT OF ORGANIC MANURE TO COMBAT DROUGHT STRESS OF WHEAT HASSAN, MEHEDI A pot experiment was conducted at the net house of Sher-e-Bangla Agricultural University, Dhaka-1207 during the rabi season of the year 2017-18 to evaluate the impact of organic manure to combat drought stress of wheat. The 3×4 factorial experiment was laid out in a Completely Randomized Design (CRD) with three replications. Factor A: Different organic manure [F 0 1 , F 2 = Vermicompost 7 t ha -1 = Control, F 1 = Cowdung 10 t ha ] and Factor B: Drought in different growth stages [D 0 = Control, D 1 = Drought in crown root initiation stage (20-29 DAS), D 2 = Drought in booting stage (45-54 DAS), D 3 = Drought in anthesis stage (55-64 DAS)]. BARI Gom28 was used as test crop. Significant variation was observed on growth, yield and yield contributing parameters. In the case of organic manure, the tallest plant (24.84, 35.77, 56.60 and 78.42 cm, respectively) at 20, 40, 60 DAS and at harvest; highest number of effective tillers plant -1 (8.33), spike length (14.61 cm), number of spikelet spike (16.33), number of grains spikelet -1 (7.67), number of grains spike -1 (37.00), weight of 1000 seed grain (44.93 g), grain yield (4.39 g plant -1 ), straw yield (4.69 g plant ), biological yield (9.08 g plant -1 ) and harvest index (48.35%) were recorded from F 1 . In the case of drought stress, the tallest plant (23.31, 34.97, 53.72 and 75.07 cm, respectively) at 20, 40, 60 DAS and at harvest; highest number of effective tillers plant 1 (9.67), spike length (15.22 cm), number of spikelet spike -1 (17.67), number of grains spikelet -1 (8.33), number of grains spike -1 (39.00), weight of 1000 seed grain (45.14 g), grain yield (4.72 g plant -1 ), straw yield (5.05 g plant -1 ), biological yield (9.77 g plant ) and harvest index (48.31%) were recorded from D 0 which was followed by D 2 . In the case of interaction, the maximum plant height (27.66, 48.10, 63.15 and 78.56 cm, respectively) at 20, 40, 60 DAS and at harvest; highest number of effective tillers plant 1 (10.33), spike length (16.12 cm), number of spikelet spike -1 (18.00), number of grains spikelet -1 (9.67), number of grains spike -1 (40.00), weight of 1000 seed grain (48.37 g), grain yield (4.89 g plant -1 ), straw yield (5.18 g plant -1 1 ) and harvest index (48.56%) were recorded from F 1 ), biological yield (10.07 g plant D 0 . It can be concluded that cowdung may be suggested to apply in drought condition. ubmitted to the Department of Agronomy Sher-e-Bangla Agricultural University, Dhaka in partial fullfilment of the requirements for the degree of MASTER OF SCIENCE (M.S.) IN AGRONOMY Mon, 01 Jan 2018 00:00:00 GMT http://localhost:8080/handle/123456789/3260 2018-01-01T00:00:00Z