http://localhost:8080/handle/123456789/3083 2026-04-18T16:16:53Z http://localhost:8080/handle/123456789/3094 MINIMIZATION OF NITROGEN ON YIELD AND GRAINQUALITY OF SCENTED RICE ARIN, MST. EFAT AFROZ The study was conducted in the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from June to December 2017 to assess the minimization of nitrogen on yield and grain quality of scented rice. Scented rice cultivars Kalizira, BRRI dhan34, Begun Bichi and Sada Sanne were used as the test crops in this experiment. The experiment consisted of two factors: Factor A: Levels of nitrogen (4 levels) as- N 1 : 37.5 kg N ha : 40.0 kg N ha -1 , N 3 : 42.5 kg N ha -1 , N 4 : 45 kg N ha -1 ; and Factor B: Scented rice variety (4 varieties) as- V 1 : Kalizira, V 2 : BRRI dhan34, V 3 : Begun Bichi and V 4 : Sada Sanne. The two factors experiment was laid out in split-plot design with three replications. The four levels of N were assigned in the main plot and 4 scented rice varieties in the sub-plot. Data were recorded on yield contributing characters, yield and quality of scented rice and statistically significant variation was recorded for most of the studied characters for different treatments. Results revealed that nitrogen and/or different varieties had significant effect on most of the yield and quality contributing parameters. Effective tillers, filled grains, weight of milled rice, protein content, proline content and grain 2-AP content increased with increasing nitrogen level upto a certain level. But N level had no significant effect on 1000 grains weight, harvest index and amylose content among the four scented rice varieties. Among the treatment combinations, the highest number of effective tillers hill -1 (15.40) was found from N 3 V 2 -1 , N 2 and the lowest number (8.40) from N 1 treatment combination. The highest grain yield (3.47 t ha -1 ) was found from N 3 , whereas the lowest (1.43 t ha -1 ) was recorded from N 1 V 3 treatment combination. The highest protein content (9.20%) was recorded from N 3 V 4 and the lowest (7.04%) was observed from N 3 V 3 treatment combination. The highest proline content (25.54 mg g -1 ) was observed from N 3 V 2 , while the lowest (18.08 mg g ) was found from N 3 V 3 treatment combination. The highest grain 2-AP content (1.06 µg g -1 ) was recorded from N 3 V 3 and the lowest (0.78 µg g -1 ) was observed from N 3 V 1 treatment combination. Data revealed that 40.0 kg N ha scented rice variety BRRI dhan34 showed best performance when considered yield with protein, amylose, proline and 2-AP content. So, Bangladeshi rice growers can produce high quality aromatic rice through 11.11% minimization of nitrogen without sacrificing its yield. -1 and V 3 V 2 -1 A Thesis Submitted to the Institute of Seed Technology Sher-e-Bangla Agricultural University, Dhaka in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SEED TECHNOLOGY SEMESTER: JANUARY-JUNE, 2018 2018-06-01T00:00:00Z http://localhost:8080/handle/123456789/3093 SEED YIELD AND QUALITY OF MUNGBEAN AS AFFECTED BY SEED PRIMING HAQUE, MD. AMINUL An experiment was carried out at Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh during the period from November 2017 to February 2018 to study the seed yield and quality of mungbean as affected by seed priming. The whole experiment was conducted in two different phases; the first at field condition and second in the Laboratory. Two varieties of mungbean viz. V 1 (BARI mung 6) and V (BARI mung 8) and different priming chemicals including control viz. T (control; No priming), T 1 (seed priming with water), T 2 (seed priming with PEG) and T (seed priming with Mannitol) were considered as treatments of the experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The data on different parameters at field level and laboratory condition were recorded. Collected data were statistically analyzed. Variety, seed priming treatments and their combination showed significant influence on different growth and yield parameters. The highest grain yield ha -1 (1299.90 kg) and percent seedling emergence (84.20%) were found from V (BARI mung 6) whereas the lowest grain yield ha -1 1 (1201.05 kg) and percent seedling emergence (81.34%) was from V (BARI mung 8). Similarly, the highest grain yield ha -1 (1523.40 kg) and highest percent seedling emergence (91.45%) were achieved from the priming treatment, T (seed priming with Mannitol) compared to control. Regarding, interaction effect of variety and seed priming treatments, the highest number of branches plant -1 (2.70, 4.60 and 5.12 at 25, 40 and 55 DAS, respectively), number of pods plant -1 (26.60), 1000 seed weight (51.12 g), grain weight plant -1 (15.30 g) and grain yield ha -1 (1572.20 kg) were found from the treatment combination, V 1 T 3 while the lowest from V . The lowest days to 50% flowering (38.67) and days to 80% pod formation (48.67) were also found from the treatment combination of V 1 T . The highest percent seedling emergence (92.30%) was also found from V 1 T 3 3 whereas the lowest (70.75%) was from the V 2 T 0 . It can be concluded that the treatment combination of V can be considered as the best considering all other treatment combinations. 2 0 T 0 1 T 2 3 3 3 2 A Thesis Submitted to the Institute of Seed Technology Sher-e-Bangla Agricultural University, Dhaka In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SEED TECHNOLOGY SEMESTER: JANUARY- JUNE, 2018 2018-06-01T00:00:00Z http://localhost:8080/handle/123456789/3092 GROWTH AND SEED YIELD OF ONION AS INFLUENCED BY GA 3 AND PLANT SPACING RAHMAN, MD. SAIFUR The experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during rabi (November, 2017 to March, 2018) to study growth and seed yield of onion as influenced by GA 3 and plant spacing .The experiment consisted of two factors. Factor A: Gibberellic acid management (4 levels) G 0 = Control (0 ppm) G 1 =80 ppm, G 2 = 100 ppm, G 3 = 120 ppm, and factor B: Spacing (3 levels) S 1 : 30 cm ×10 cm, S 2 : 30 cm × 20 cm were delineated in Randomized Block Design (RCBD) with three replications. The Taherpuri variety was used in this experiment as the test crop. There were 12 treatment combinations. Result showed that GA 3 : 30 cm ×15 cm, S 3 , plant spacing and their combination showed significant variation among the treatments on growth and yield parameters. In case of GA 3 1 (560.63 kg) was obtained from G 2 the highest seed weight ha (100 ppm) where the lowest results on respected parameters were found from G 0 (Control) treatment. Regarding, plant spacing the highest seed yield ha -1 (439.98 kg) was attained from the treatment of S 2 (30 cm ×15 cm) where the lowest results on respected parameter was achieved from the S 1 (30 cm ×10 cm) treatment. In terms of combined effect of GA 3 and plant spacing, the highest number of seeds plant -1 (3.37 g), highest seed yield plot -1 (108.08 g) and highest seeds ha -1 (750.54 kg) were found from the treatment combination of G 2 S 2 where the lowest results were obtained from the treatment combination of G 0 S 1 per plant and G 0 for per plot and per hectare. Among the treatment combination G 2 S 2 (100 ppm with 30 cm×15 cm) seemed to be more suitable for getting higher seed yield in onion. S 3 A Thesis Submitted to the Institute of Seed Technology, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SEED TECHNOLOGY SEMESTER: JANUARY-JUNE, 2016 2018-06-01T00:00:00Z http://localhost:8080/handle/123456789/3091 INFLUENCE OF NITROGEN, PHOSPHORUS AND SPACING ON THE GROWTH, YIELD AND SEED QUALITY OF MUNGBEAN DEEP, RIFAT BEN-ISLAM The experiment was conducted at Sher-e-Bangla Agricultural University, DhakaBangladesh during kharif-I season (March to July, 2017) to study the effect offertilizer and spacing on the morphological characteristics, yield contributingcharacters, yield and seed quality of mungbean. The experiment consisted of Factor A: Fertilizer management (4 levels); F 0 = N + P 2 O 5 (0 + 0) kg ha -1 (Control), F = N P 2 O 5 (15 + 30) kg ha -1 ( 25 % lower than recommended dose by BARI), F (20 + 40) kg ha -1 (Recommended dose by BARI), F 3 = N + P 2 O 5 2 1 = N + P (25 + 50) kg ha (25 % higher than recommended dose by BARI), and factor B: Plant spacing (3 levels); S = 30 cm ×10 cm, S 2 = 30 cm × 15 cm, S = 30 cm × 20 cm. The variety, BARImung6 was used in this experiment as the test crop. The experiment was laid out in a splitplot design with three replications where levels of fertilizer were assigned in the main plot and spacing in the sub-plots. The results indicated significant variations in plantheight, number of leaves plant -1 3 , number of pods plant -1 , pod length, number of seeds plant -1 , weight of 1000 seeds, seed yield, stover yield, biological yield, harvest indexgermination percentage, germination index, shoot length, root length, dry weight ofseedling and EC test due to fertilizer and/or spacing. Results also revealed that, N P 2 O 5 (25 + 50) kg ha -1 (F ) treatment significantly influenced the morphologicacharacters, yield contributing characters, yield and seed quality of mungbean. Thehighest seed yield (1.49 t ha 3 -1 ) was obtained from this treatment. On the other hand30 cm × 20 cm (S ) treatment significantly influenced the morphological characters, yield contributing characters but 30 cm × 10 cm (S 3 ) treatment influencesignificantly on yield which gives highest seed yield (1.44 t ha 1 -1 ) due to its high plant density. Among the treatment combination, N + P 2 O 5 (25 + 50) kg ha fertilizer with30 cm × 10 cm plant spacing (F 3 S ) seemed to be more promising for obtaining higheyield (1.97 t ha -1 1 ) and for having better quality seed production in mungbean. -1 -1 2 O A Thesis Submitted to the Institute of Seed Technology, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SEED TECHNOLOGY SEMESTER: JANUARY-JUNE, 2016 2018-06-01T00:00:00Z