http://localhost:8080/handle/123456789/2762 2026-04-03T18:55:50Z http://localhost:8080/handle/123456789/2920 EVALUATION OF EXOTIC POTATO GERMPLASM ON YIELD AND YIELD CONTRIBUTING CHARACTERS HAQUE, MD. EAKRAMUL A field experiment was conducted with 12 exotic potato germplasm viz. Atlantic, Atlas, Aziba, Billini, Croste, Daifla, Daise, Delaware, Quincy, Sagita, Sassy, Spunta with Diamant as check at Breeder Seed Production Center, Debigonj, Panchagorh, during December 21, 2006 to March 28, 2007 to determine their suitability as a variety in Bangladesh. All the varieties gave more than 90% emergence at 20-35 DAP (Days after Planting). Tallest (87.8 cm) plant height was recorded in Quincy and the shortest (57.0 cm) was from Atlas and the minimum (2.0) was obtained from Daifla. Maximum (7.2) stem number per hill was counted in Diamant followed by Delaware. Although there was significant variation among the varieties on foliage coverage but all showed more than 90% foliage coverage at 60 DAP and 100% foliage coverage was shown by Daifla, Aziba and Sagita. Significant variation in stem (plant) diameter among the varieties were evident. Maximum (5.9 cm) plant diameter was recorded from Atlas and the minimum (2 .6 cm) was from Diamant. Number of tuber per plant ranged from 6.5 to 14.1 with the minimum and the maximum by Croste and Delaware, respectively. Significantly the highest yield (44.5 t/ha) was found in Aziba and the lowest (32.29 t/ha) was obtained from Sassy. Irrespective of varieties, all produced maximum percent of seed tuber (grade) both by number and by weight. All the varieties showed late blight infection even after receiving two times fungicidal spray. All the varieties were free from PLRV (Potato Leaf Roll Virus) infection except Atlantic, Atlas, Spunta and Diamant. Regarding PVY (Potato Virus Y), varieties showed trace infection which ranged from 0.33-2.33%. Five varieties (Croste, Daifla, Quincy, Sassy and Diamant) were free from PVY. Varieties contained more than i0% dry matter were Atlas, Croste, Daise, Sagita, Sassy and Diamant. A Thesis Submitted to the Department of Horticulture and Postharvest Technology Sher-e-Bangla Agricultural University, Dhaka, In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN HORTICULTURE SEMESTER: JULY - DECEMBER 2007 2007-12-01T00:00:00Z http://localhost:8080/handle/123456789/2047 PERFORMANCE OF OKRA GERMPLASM WITH SPECIAL REFERENCE TO YELLOW VEIN MOSAIC VIRUS RASUL, MD. HUMAYUN KABIR-E The experiment Was undertaken to study the performance of okra germplasm with special reference to yellow vein mosaic virus among 36 accessions at the 1-l0rticult1lre Farm Division, lIorticulwre Research Centre, Bangladesh Agricultural Research Institute, .Ioyclebpur, Gazipur, during the period from April 2007 to August 2007. There was a wide range of clilThrent parameters. The maximum (169.37 em) plant height was observed from accession number 14 and the maximiflhl spread of plant was found from accession number 138 (14.62) was recorded from accession number 219 and 114 respectively. At 80 DAS the plant performed the maximum (94.2) number of leaves was obtained from accession number 138. The maximum leaf breath (35.1 cm) was recorded from accession number 148. The minimunl (36.39) and the maximum (68.08) (lay's was required for days to first flowering were from accession number 144 and 114 respectively. The minimum (14.27%) plant was infested by virus at 75 DAS in accession number 139 compare to other accessions number. So, accession number 139 was identified as agronomicallY acceptable resistant line against okra yellow vein mosaic virus. A Thesis Submitted to the Deparinient of Agricultural Chemistry Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN AGRICULTURAL CHEMISTRY SEMESTER: JANUARY-JUNE, 2007 2017-06-01T00:00:00Z http://localhost:8080/handle/123456789/1152 EFFECT OF IAA AND GA3 ON THE GROWTH, CURD FORMA TIO AND YIELD OF CAULIFLOWER AKHTER, MOSAMMAT NAZIA An experiment was carried out at the Horticultural farm, Sher-e-Bangla Agricultural University, Sher-e-Bangla agar, Dhaka-1207 during October 2006 through January 2007 with two growth regulators, Gibberellic Acid (GA3) and lndole Acetic Acid (IAA) applied at two different stages namely vegetative stage and curd formation stage to observe the growth, curd size and yield contributing characters of the modem HYV cauliflower cultivar, 'Shirajuki'. The experiment was laid out in a Randomized Complete Block Design (RCBD). The field experiment had three replications. There were three concentrations of IAA (0, 5, 10 ppm) and GA3 (0, 80, 100 ppm). Application of IAA 10 ppm resulted the minimum (47.76) days from transplanting to curd initiation and the maximum (34.40 cm) plant height was at harvest while the minimum (28.86 cm) was recorded from control treatment. The maximum number of leaves per plant (25.04). length of the largest leaf (50. 77 cm). breadth of the largest leaf ( 18.20 cm) at harvest, curd diameter at harvest (23.38 cm) were recorded from IAA 5 ppm (11) whereas, the minimum was recorded from control treatment. Application of GA3 100 ppm (G2) resulted the highest pure curd height ( 14.59 cm), curd weight with leaves ( 1.90 kg) at harvest, marketable curd weight (1.33 kg /plant) and curd yield (53.33 t/ha) while the lowest was recorded from control treatment. The maximum benefit cost ratio (BCR) (2.93) was recorded from the treatment combination of I2G2 while the minimum (1.18) was recorded from control treatment. So, IAA 10 ppm and GA3 l 00 ppm indicating the economic viability of using growth regulator in curd growth and yield of cauliflower. A Thesis Submitted to the Department of Horticulture Sher-e-Bangla Agricultural University, Dhaka in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN HORTICULTURE 2007-01-01T00:00:00Z http://localhost:8080/handle/123456789/1150 EFFECT OF GROWTH REGULATORS AND FERTILIZER MANAGEMENT PRACTICES ON THE FLOWERING, FRUIT SET AND YIELD OF BITTER GOURD (Momordica charantia L.) MOMIN, MOHAMMAD ABDUL A field experiment was conducted to examine the effect of growth regulators (IAA and Ripen-15) and fertilizer management practices on the flowering, fruit set and yield of bitter gourd (Hybrid Corolla- Penta Green) during April to July 2007 at the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka. The experiment was considered of two factors. Factor A: Different plant growth regulators viz. control (H ), Ripen-15 (H 2 ) and IAA+Ripen-15 (H ) and Factor B: Fertilizer management practices viz. control (F 0 ), organic manure (F 1 3 ) and inorganic manure (F ). It was laid out in the two factors Randomized Complete Block Design (RCBD) with three replications. The data obtained for different characters were statistically analyzed to find out the significance of the PGR’s and fertilizer management practices. The tallest plant at 1st flowering time (163.90 cm), the lowest ratio of male and female flower (3.08), the maximum fruit weight (129.10 gm) were recorded from the application of IAA+Ripen-15 (H 3 2 ) but the maximum number of fruit (18.26) and highest yield per hactare (21.89) was found from application of Ripen-15 (H ) and the minimum was recorded in control condition. The tallest plant at 1st flowering (160.72 cm), the lowest ratio of male and female flower (3.06), the maximum number of branches (11.86), nodes (26.33), female flowers (23.72), fruits (16.35), maximum fruit weight (119.92 gm) per plant and the highest yield (19.11 t/ha) were recorded from the application of inorganic fertilizer (F 2 ) and the minimum was recorded in control condition. Interaction effect between plant growth regulators and fertilizer management practices showed a statistically significant variation incaseof most of the recorded characters. The combination of Ripen-15 and inorganic fertilizer (H 2 F ) gave the highest gross return (Tk. 510,000) which is closely followed by combination of Ripen-15 and organic fertilizer (H 2 2 F ). The lowest gross return (Tk. 208,000) was obtained in the control condition where no plant growth 1 0 ), IAA (H 1 2 regulator as well as no fertilizer was applied. The combination of Ripen-15 and inorganic fertilizer (H 2 F ) gave highest benefit cost ratio (2.47) and the lowest benefit cost ratio (0.61) was obtained in combination of control conditions (H 2 ). A Thesis Submitted to the Department of Horticulture Sher-e-Bangla Agricultural University, Dhaka in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN HORTICULTURE 2007-01-01T00:00:00Z