http://localhost:8080/handle/123456789/2670 2026-04-18T16:30:53Z http://localhost:8080/handle/123456789/1388 ROLE OF MODIFIED CHITOSAN ON RICE (BRRI dhan29) CULTIVATION IN SALINE SOIL SHITHY, SAMIHA MARZAN A pot experiment was conducted in the net house of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, during the period from December 2015 to April 2016 to study the role of modified chitosan on rice (BRRI dhan29) cultivation in saline soil. BRRI dhan29 was used as the test crop in this experiment. The experiment consists of 2 factors i.e. salinity and modified chitosan. Different doses of modified chitosan (C 0 -0 g modified chitosan/pot, C -20 g modified chitosan/pot and C 2 -40 g modified chitosan/pot). Different levels of salinity were (S - normal soil, S 1 - 4dSm -1 , S 2 - 8dsm -1 and S 3 - 12dsm -1 ). The experiments was laid out in randomized complete block design (RCBD) with 3 replications. There were 12 treatment combinations. Results revealed that salinity had significant effect on the yield and yield parameters. The highest value of effective tillers/hill, plant height, panicle length, number of filled grain/panicle, 1000 grain weight, grain yield and straw yield were observed when the level of salinity was S (normal soil) and the lowest value was observed when the level of salinity was S 3 1 (12 dsm ). The Yield contributing characters and yields were significantly affected by application of modified chitosan. The highest effective tillers/hill (23.91), plant height (60.24 cm), panicle length (19.37cm), 1000 grain wt. (14.83g), grain yield (38.08g) and straw yield (47.08g) were found from C (20 g modified chitosan/pot). On the other hand in most cases lowest values were obtained from C 1 (40 g modified chitosan/pot). The highest values of effective tillers/hill (49.00), plant height (78.687), panicle length (27.87), 1000 seed wt.(21.33), and grain yield (85.00), recorded from (S 2 0 C - normal soil + 20 g modified chitosan/pot). The lowest values were observed from (S 3 1 C 2 -12dsm -1 + 40 g modified chitosan/pot). Our results concluded that application of modified chitosan (20 g modified chitosan/pot) could play significant role to increase the grain yield of rice and could improve the salt tolerance in rice. -1 0 0 A Thesis submitted to the Department of Soil Science Sher-e-Bangla Agricultural University, Dhaka in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SOIL SCIENCE SEMESTER: JULY-DECEMBER, 2015 2015-12-01T00:00:00Z http://localhost:8080/handle/123456789/1386 EFFECT OF SOIL AND FOLIAR APPLICATION OF ZINC ON YIELD OF WHEAT GROWN UNDER WATER STRESS CONDITION AKTAR, SURVI An experiment was carried out to know the effect of irrigation, soil and foliar application of zinc on the growth and yield contributing characteristics of wheat. In this experiment, irrigation viz T - Regular irrigation, T 2 - Skipping irrigation at CRI stage, T - Skipping irrigation at booting stage, T 4 3 - Skipping irrigation at flowering and heading stage and foliar spray of zinc viz Zn 0 - Control, Zn 1 – 0.02%, Zn 2 1 – 0.04% and Zn – 2.5kg Zn/ha into soil were studied. Data of field experiment were recorded on plant height, spike length, number of grains spike , number of spikelet spike -1 , 1000 grain-weight and total yield of wheat. Results revealed that individual effect of irrigation was significant on all selected parameters. The effect of zinc application was found significant while the higher dose of foliar application of zinc increased the yield of wheat compared with the application of zinc in soil. Results showed that the highest number of grains per spike (48.20) was achieved from both T and T 4 Zn 2 treatments while T 2 Zn produced the lowest number of grains spike -1 0 (36.12). It was found that the highest 1000-grain weight (54.10g) was exerted by T 4 Zn treatment and the lowest yield of 1000-grain weight (46.67g) was produced from T 2 2 Zn treatment. However, the highest yield of wheat (3.82 t/ha) was exerted by T 0 4 Zn treatment, whereas the lowest yield (1.80t/ha) was found for T 2 Zn 0 2 treatment. From this study, it was revealed that foliar application of zinc was more effective than the application in soil. In addition, skipping irrigation at flowering and heading stage with foliar application of zinc (0.04%) could be recommended for higher yield of wheat. -1 1 Zn 3 2 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 IN SOIL SCIENCE SEMESTER: July-December, 2015 2015-12-01T00:00:00Z http://localhost:8080/handle/123456789/1383 EFFECT OF FOLIAR APPLICATION OF ZINC ON THE GROWTH AND DEVELOPMENT OF WHEAT AKTER, MOST. NAZNIN The experiment was conducted during the period from November 2014 to March 2015 in rabi season at the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka to find out the effect of foliar application of zinc on the growth and development of wheat. The seeds of wheat variety ‘BARI Gom 26’ were used as test crop. The experiment comprised of the following treatments- T : Control (no zinc fertilizer), T 1 : Spraying of 0.02% Zn solution once in growing season, T : Spraying 0f 0.02% Zn solution twice in growing season, T : Spraying of 0.04% Zn solution once in growing season, T 4 3 : Spraying of 0.04% Zn solution twice in growing season, T 5 : Spraying of 0.06% Zn solution once in growing season, T : Spraying of 0.06% Zn solution twice in growing season and T : Application of Zn in the soil as per recommended dose (2.5 kg Zn/ha). The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Statistically significant variation was observed for different parameters that were recorded. At 40, 50, 60, 70 DAS and harvest, the tallest plants (44.96, 64.73, 79.82, 90.17 and 97.01 cm, respectively) were recorded from T 6 7 , while the shortest plant (39.27, 53.87, 69.26, 76.42 and 81.17 cm, respectively) was observed from T . The maximum number of effective tillers plants -1 0 (5.13), maximum number of filled grains spike (46.07), highest grain yield (3.97 t ha -1 ) and highest straw yield (5.10 t ha -1 ) was attained from T 6 , while the minimum number of effective tillers plants -1 (3.87), minimum number of filled grains spike -1 (40.43), lowest grain yield (3.08 t ha -1 ) lowest straw yield (4.44 t ha -1 ) and was observed from T .But incase of effective tiller, length of flag leaf,spikelet/spike,filled grain,yield of grain under T 0 treatment were statistically identical with T 3 , T 4 ,T 5 treatment.So we can choose T 6 for yield contributing characters and yield attributes. The maximum uptake of N (27.02 kg ha 3 ), P (10.62 kg ha -1 ) and K (14.07 kg ha -1 ) by wheat grain were found from T but the maximum uptake of Zn (0.214 kg ha -1 ) from T 7, 5 while the minimum values of uptake of N (19.40 kg ha -1 ), P (7.66 kg ha -1 ), K (10.29 kg ha -1 ) and Zn (0.073 kg ha -1 ) were found from T .The highest amount of available Zn of post harvest soil (3.53 ppm) was found from T 0 , whereas the lowest available Zn in post harvest soil (2.01 ppm) was observed from T 7 . Among the different treatments of foliar spray of Zn, spraying of 0.06% Zn solution twice in growing season induced superior growth, yield contributing characters and yield of wheat. 0 6 -1 0 -1 2 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 SOIL SCIENCE SEMESTER: JULY-DECEMBER, 2015 2015-12-01T00:00:00Z http://localhost:8080/handle/123456789/1380 EFFECT OF FOLIAR APPLICATION OF SALICYLIC ACID ON YIELD AND YIELD CONTRIBUTING CHARACTERS OF BRRI hybrid dhan3 KHATUN, MOST. MOSLAMA The experiment was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from November 2014 - April 2015 to study the effect of different levels of salicylic acid (SA) on growth and yield of BRRI hybrid dhan3.The experiment included six levels of SA viz. T 1 = 0, T 2 = 200, T 3 = 400, T 4 = 600, T = 800 and T = 1000 µM. The experiment was laid out in a randomized complete block design with three replications. The results revealed that, Lower dose of SA has a positive role on plant height of rice and higher doses up to 1000 µM have negative effect. The highest oven dry matter weight (2.7 t/ha) was found in T 6 treatment having foliar spray of SA at 400 µM and the lowest (2.0 t/ha) was found in, T 3 . The highest number of effective tillers per hill (14) was found in the treatment T 6 5 due to the application of 1000 µM SA and the highest 1000 grain weight (34.8g) was found with the same treatment. The highest number of grain per panicle (156) was found in the T treatment having foliar application of 1000 µM SA and it was statistically similar with the treatments T 6 4 and T . The application of different levels of SA had a significant effect on number of stem borer affected plants. The lowest number of affected panicle per plot (3) was found in the treatment T 5 . The maximum grain yield was found in the treatment T having 1000 µM SA and it was statistically identical with the treatment T 5 6 having 800 µM SA. On the other hand, minimum grain yield was found in the control treatment T which was similar to the treatments T 2 and T 3 1 having 200 µM and 400 µM SA, respectively. So, it can be concluded that salicylic acid may be applied as foliar application to rice crops for better growth and yield. 5 6 A Thesis Submitted to the Department of Soil Science Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN SOIL SCIENCE SEMESTER: July-December, 2015 2015-12-01T00:00:00Z