http://localhost:8080/handle/123456789/2785 Sat, 18 Apr 2026 14:12:50 GMT 2026-04-18T14:12:50Z http://localhost:8080/handle/123456789/452 INFLUENCE OF PLANT GROWING STRUCTURES AND DIFFERENT COMBINATIONS OF GIBBERELLIC ACID AND SILICON ON SUMMER TOMATO IN ROOFTOP GARDEN TALUKDER, TITLY KAIYUM An experiment was conducted in the rooftop garden of Agricultural Botany Department, Sher-e-Bangla Agricultural University, Dhaka during June to October 2016 to assess the influence of different plant growing structures and different combinations of gibberellic acid (GA) and silicon (Si) on summer tomato cultivation for spreading the sustainable urban agriculture in the Dhaka city. GA3 and Silicic acid (SA) were used as source of GA and Si, respectively. Summer hybrid tomato Success, Bejo Sheetol Seed Company (BD) Limited was used in this study. The two factors experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. Factor A was different kinds of plant growing structures which includes three types; earthen pot (E), concrete bed (C) and wooden bed (W) and Factor B was four different combinations of GA and Si; H0= 0 ppm GA3 and 0 mM Si, G=20 ppm GA3 and 0 mM Si, Si=0 ppm GA3 and 0.4 mM Si, GSi= 20 ppm GA3 and 0.4 mM Si. The total treatment combinations were 12 (3 x 4). The experimental results showed that plant growing structures significantly influenced to change morpho-physiology, yield contributing characters and fruit yield of summer tomato. The morpho-physiological characters including plant height, number of leaves and branches plant-1, stem diameter, SPAD value and yield contributing characters such as number of flower clusters, flowers and fruits plant-1, fruit weight and fruit yield plant-1 were significantly increased with wooden bed (W) whereas earthen pot showed poor performance. In contrast, the leaf water loss as measured in percent of fresh weight was minimum at earthen pot whereas it was maximum at concrete bed. It was found that plant growing structures, different combinations of GA and Si showed significant variation on changes in morpho-physiology, yield contributing characters and fruit yield of summer tomato. Different combinations of GA and Si showed significant effect on morpho-physiological and yield contributing characters of the tomato plants. The experiment exhibited that exogenous application of 20 ppm GA and 0.4 mM Si significantly increased plant height, leaf Number plant-1, number of branches plant-1, stem diameter, SPAD value and yield contributing characters like number of flower clusters plant-1,number of flowers plant-1, number of fruits plant-1, individual fruit weight and total yield plant-1. However application of Si has reduced the leaf water loss percentage. The interaction between plant growing structure and sole or combined application of GA and Si influenced all the morpho-physiological and yield contributing characters and yield of tomato. The highest yield plant-1 (190.9g) was obtained in wooden bed with 20 ppm GA along with 0.4 mM Si (WGSi) treatment combination whereas the lowest yield (52.11g) was recorded from EH0, earthen pot and 0 ppm GA and 0 mM Si treatment combination. Therefore, this experimental results suggest that wooden bed in combination with 20 ppm GA and 0.4 mM Si can increase the production of summer tomato in the rooftop garden. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN AGRICULTURAL BOTANY Semester: January-June, 2016 Wed, 01 Jun 2016 00:00:00 GMT http://localhost:8080/handle/123456789/452 2016-06-01T00:00:00Z http://localhost:8080/handle/123456789/451 EFFECT OF INDIGENOUS AND ARTIFICIAL MULCHES ON THE MORPHOPHYSIOLOGICAL AND YIELD ATTRIBUTES OF WHITE MAIZE (Zea mays L.) RANU, MST. SARMIN AKTER The experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from November 2015 to April 2016 to find out the effect of indigenous and artificial mulches on the morphophysiological and yield attributes of white maize. The experiment consisted of two white maize varieties (i) V1: Shuvra, (ii) V2: KS-510 (hybrid variety) and six different mulch materials treatments (i) T1: Control, (ii) T2: Water hyacinth mulch, (iii) T3: Rice straw mulch, (iv) T4: Black polythene mulch, (v) T5: White polythene mulch and (vi) T6: Transparent polythene mulch. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Different microclimatic, morphological, physiological and yield contributing characters were studied. In case of white maize varieties, the highest soil moisture (36.5%) was observed from V2 while the lowest (33.2%) was observed from V1 at 75 DAS (20-30cm). The highest grain yield (16.36 t ha-1) was observed from V2, whereas the lowest (13.55 t ha-1) was observed from V1. In case of mulch materials, the highest moisture (32.15%, 38.50% and 43.58 %) was observed from T3, while the lowest moisture (10.25%, 13.68% and 18.08%) was observed from T1 at 75 DAS (0-10, 10-20, 20-30cm) respectively. The highest grain yield (20.5 t ha-1) was observed from T3, while the lowest (6.36 t ha-1) was observed from T1. The lowest weed dry weight (7.458 g/m2) was observed in case of T3, while the highest weed dry weight (35.45 g/m2) was observed in case of T1. Due to interaction effect, the highest soil moisture (44.43%) was observed from V2T3 while the lowest (17.37%) was observed from V1T1 at 75 DAS (20-30cm). The highest grain yield (21.40 t ha-1) was found from the V2T3, while the lowest (6.02 t ha-1) was recorded from V1T1 treatment combinations. The highest weed dry weight (36.63 g/m2) was found from V1T1, while the lowest (7.017 g/m2) was recorded from V2T3 treatment combinations. It was found that the hybrid variety KS-510 provided the highest yield when straw mulch was used and the moisture content was also the highest where weed population was the least in comparison to other treatments and variety. A Thesis Submitted to the Department of Agricultural Botany Sher-e-Bangla Agricultural University, Dhaka in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN AGRICULTURAL BOTANY SEMESTER: JANUARY-JUNE, 2016 Wed, 01 Jun 2016 00:00:00 GMT http://localhost:8080/handle/123456789/451 2016-06-01T00:00:00Z http://localhost:8080/handle/123456789/450 GROWTH AND YIELD PERFORMANCE OF MICRO PROPAGATED POTATO (Solanum tuberosum L.) GERMPLASM UNDER FIELD CONDITION ALAM, MD. NASIRUL A field experiment with 19 micro-propagated potato (Solanum tuberosum L.) germplasm collected from different sources was conducted at Sher-e-Bangla Agricultural University, Dhaka during 01 December 2015 to March 2016 to study the growth and yield performance of the germplasm. The tested 19 germplasm were G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, G17, G18 and G19. The experiment was laid out in Randomized Complete Block Design with three replications. All the germplasm differed significantly with regard to plant height leaves plant-1, leaf chlorophyll content (SPAD value), plantlets plant-1, tubers plant-1, individual tuber weight, tuber yield plant-1, tuber yield plot-1 (plot area:12 m2) and tuber yield ha-1. Maximum number of small sized tuber was produced by G5 (149.0) followed by G12 (137.0), G6 (85.0), G8 (50.0), G13 (50.0) and G16 (50.0) while maximum number of medium sized tuber was recorded in G5 (20), G12 (15.0), G6 (13.0) and G16 (13.0). The germplasm G7 recorded the highest number of large sized tuber (13.0) which was followed by G6 (12.0). The highest plant height was found from G7 (55.0) closely followed by G19 (53.00 cm), G11 (49.67 cm) and G4 (51.33 cm) and the lowest from G1 (28.00 cm). G19 recorded the maximum number of leaves plant-1 (32.67) which was statistically similar to G15 and G6. Maximum chlorophyll content (SPAD value) was recorded from G15 closely followed by G19 and its minimum value from G14. G5 gave the maximum number of plantlets plant-1. Maximum individual tuber weight was obtained from G14 and the minimum from G17. G12 produced the highest tuber yield plant-1 (283.67 g) which was statistically similar to G8 (283.00 g), G19 (280.94 g), G6 (257.67 g) and G14 (253.00 g). Positive correlation of yield was observed with leaves plant-1, plantlets plant-1, tubers plant-1, individual tuber weight and tuber yield plant-1. The maximum tuber yield was produced by G8 (2.73 kg plot-1 and 39.05 t ha-1) closely followed by G12 (2.70 kg plot-1 and 38.52 t ha-1) and G19 (2.67 kg plot-1 and 38.14 t ha-1). A Thesis submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN AGRICULTURAL BOTANY SEMESTER: January - June, 2016 Wed, 01 Jun 2016 00:00:00 GMT http://localhost:8080/handle/123456789/450 2016-06-01T00:00:00Z http://localhost:8080/handle/123456789/449 A COMPARATIVE STUDY ON GROWTH AND YIELD OF DIFFERENT AMAN RICE VARIETIES SALAHIN, S. A. M. The experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during Aman season (July -November) 2016 to study the growth, yield and yield attributes of different Aman rice varieties. The experiment comprised of eight Aman rice varieties viz., BRRI dhan32, BRRI dhan33, BRRI dhan34, BRRI dhan39, BRRI dhan54, BRRI dhan56, BRRI dhan57 and BRRI dhan62. The experiment was laid out in a Randomized Complete Block Design (RCBD) with four replications. Different growth characteristics, yield and yield attributes varied considerably among the studied varieties. At 15, 30, 45, 60 and 75 DAT (days after transplanting) and at harvest, the tallest plant (26.00, 54.10, 77.96, 92.88, 116.00 and 122.68 cm, respectively) were recorded from BRRI dhan32, whereas the shortest plant (21.97, 42.84, 65.32, 75.42, 101.00 and 101.88 cm, respectively) from BRRI dhan62. At 15, 30, 45, 60 and 75 DAT, the highest leaf area index (0.41, 1.75, 3.89, 5.94 and 6.94, respectively) and the highest total dry matter hill-1 (3.24, 7.02, 8.68, 14.92 and 15.37 g, respectively) were recorded from BRRI dhan54, whereas the lowest leaf area index (0.35, 1.48, 2.99, 4.18 and 4.80, respectively) and the lowest total dry matter hill-1 (2.86, 4.51, 7.47, 11.82 and 13.73 g, respectively) from BRRI dhan34. The maximum days to maturity (134.25) were recorded from BRRI dhan34, while the minimum days (100.50) from BRRI dhan33. The maximum number effective tiller hill-1 (16.75) were recorded from BRRI dhan54, whereas the minimum number (12.05) from BRRI dhan34. The longest panicle (25.76 cm) was recorded from BRRI dhan54, while the shortest panicle (21.30 cm) from BRRI dhan34. The maximum number of filled grains panicle-1 (89.90) were recorded from BRRI dhan54, whereas the minimum number (75.80) from BRRI dhan34. The highest weight of 1000-grains (25.71 g) was obtained from BRRI dhan54, while the lowest (19.45 g) from BRRI dhan57. The highest grain yield (5.45 t ha-1) were achieved from BRRI dhan54, whereas the lowest (3.49 t ha-1) from BRRI dhan34. The highest straw yield (7.97 t ha-1) were recorded from BRRI dhan54, whereas the lowest straw yield (6.58 t ha-1) from BRRI dhan34. Among the tested Aman rice varieties, BRRI dhan54 was the best in consideration of yield attributes 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 AGRICULTURAL BOTANY SEMESTER: JANUARY-JUNE, 2016 Wed, 01 Jun 2016 00:00:00 GMT http://localhost:8080/handle/123456789/449 2016-06-01T00:00:00Z