http://localhost:8080/handle/123456789/2765 2026-04-08T14:37:58Z http://localhost:8080/handle/123456789/947 EFFECT OF PRESERVATIVES ON VASE LIFE OF GLADIOLUS TUBEROSE AND GERBERA HAWLADAR, MOHAMMAD YUSUF An experiment was conducted at the Laboratory of Landscape, Ornamental and Floriculture Division of Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur during the period from January 2009 to June 2009 to study the effect of different preservatives on postharvest life of gladiolus, tuberose and gerbera cut flowers. The study consisted of ten treatments- T1= 2% sucrose+ 100 ppm AgN03 + 25 ppm citric acid, T2= 2% sucrose+ 200 ppm AgN03 + 25 ppm citric acid, T3= 3% sucrose+ 100 ppm AgN03 + 25 ppm citric acid. T4= 3% sucrose+ 200 ppm AgN03 + 25 ppm citric acid. T5 = 4% sucrose + 100 ppm AgN03 + 25 ppm citric acid, T6 = 4% sucrose+ 200 ppm AgN03 + 25 ppm citric acid, T.,= 0.01 % sodium chloride. Tr 0.05 % sodium chloride.Te= 0.10 % sodium chloride and Tio= Control (tap water). Maximum vase life of 12 days was observed in gladiolus spikes held in solutions containing T3 which was closely similar (11 days) with those held in solution T4. In tuberose, the vase solution having a mixture of T2 significantly increased vase life, cumulative uptake of vase solution, fresh weight and number of opened florets compared to control and other treatments. It was found that in T1 and T2 treatment, tuberose flowers were more fragrant followed by other treatments T3, T4, Ts to T6 and Tio. No fragrance was found in T1, Ts and T9• A synergized effect of T6 proved effective in delaying the senescence of cut gerbera by increasing the water uptake and reducing the water loss thereby maintaining better water balance, leading to increased fresh weight and vase life. 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 2009-01-01T00:00:00Z http://localhost:8080/handle/123456789/946 EFFECT OF ROOTSTOCK AND METHOD OF GRAFTING ON THE SUCCESS AND GROWTH OF SWEET ORANGE (MALTA) CHAKMA, REMI The experiment was conducted at the nursery of Hill Agricultural Research Station, Khagrachari from 14 August 2009 to February 2010 to find out the effect of rootstock and method of grafting on the success and growth of sweet orange (Malta). The experiment consisted of two factors. Factor A: Four rootstocks: R1: Rangpur lime; R2: Rough lemon; R3: Kalamansi and Ra: Pummelo. Factor B: Three methods of grafting: G1: Cleft grafting; G2: Veneer grafting and G3: Splice grafting. The two-factor experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. In case of rootstock the highest percentage of graft success (86.3%) was found from Ri, while the lowest (81.9%) was obtained from R3. The highest percentage of graft survivability (77.3%) was recorded from R2 and Rt, while the lowest (7 5 .1 % ) was observed from R3• In case of grafting the highest percentage of graft success (91.1%) was found from G1 and the lowest (76.7%) was found from 03• The highest percentage of graft survivability (83.0%) was found from 01 and the lowest (68.8%) was found from G3. For combined effect the highest percentage of graft success (94.2%) was observed from R2G1, whereas the lowest (74.2%) was recorded from R2G3• The highest percentage of graft survivability (87%) was observed from ~G1, whereas the lowest (66.0%) was recorded from R2G3• So, cleft grafting in rough lemon was found suitable for propagation of sweet orange. 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 2009-01-01T00:00:00Z http://localhost:8080/handle/123456789/945 EFFECT OF GROWTH CHEMICALS ON DIFFERENT VARIETIES OF GERBERA SHAMMY, FARJANA HAQUE An experiment was conducted at Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka during the period from July, 2009 to April, 2010. The experiment consisted with two factors, Factor A: : control; F 1 : GA 3 ; F 2 : 4-CPA and F 3 : Flora : red colored flower and V : yellow colored flower 2 variety and maximum number of flower 1 2 but all other parameters were the lowest at V . For combined effect the highest peduncle length 1 2 F and maximum number of flower 1 F 2 2 and minimum 1 F . So plants of yellow colored flower treated with 4-CPA were more effective for quality production of gerbera. 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 2009-01-01T00:00:00Z http://localhost:8080/handle/123456789/944 PRODUCTION PERFO CE OF MANGO IN DINAJPUR DISTRICT OF BANGLADESH (A CASE STUDY AT SADAR UPAZILLA) ALAM, MD. JAHANGIR A study was conducted to identify the status of mango production, mango varieties produced, problems confronted by the growers and to explore their relationship with some selected characteristics. Data were collected from randomly selected 105 mango growers from eight selected villages of sadar upazila under Dinajpur district through personal interview during March to August, 2008. Data were collected on age education, farm size, land used in mango production annual income, experience and knowledge on mango production varieties and number of mango trees and so on. Relationship between the selected characteristics and dependent variables was done by Pearson's product moment co-efficient of correlation. In the study 30 germplasm of mango were identified. Baramashi droop was found as the only year round variety. Gopalbhog holds the first position (15.90 o/o) according to rank of recognized mango varieties based on their availability in respondents farm. About three fourths (77 .10 %) and more than the same (70.50 %) of the respondents had medium mango production and income respectively. Majority (75.20 %) of the growers confronted medium problems. Cent percent of the respondents certified that Dinajpur district is profitable in respect of mango production. 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 2009-01-01T00:00:00Z