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    GROWTH AND YIELD OF MAIZE VARIETIES AS INFLUENCED BY INTEGRATED NUTRIENT MANAGEMENT

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    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 AGRONOMYA field experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka during the period from October-2021 to February-2022 in Rabi season, to study the growth and yield of maize varieties as influenced by integrated nutrient management. The experiment consisted of two factors, and followed split plot design with three replications. Factor A. Varieties (2) viz: V 1 : WIN-142 maize genotype V 2 : Pioneer 3355 maize genotype and Factor B. Different integrated nutrient management (6) viz: T 1 = Recommended dose of fertilizer application (RDF: Urea: 400 kg ha + MoP: 200 kg ha 1 ), T 2 -1 + Gypsum: 190 kg ha = 100% Trichocompost, T 3 -1 + ZnSO₄: 10 kg ha -1 -1 + TSP: 200 kg ha + Boric acid: 10 kg ha = 100% Trichocompost + 50% RDF, T 4 = 100% Trichocompost + 75% RDF, T 5 = 50 % Trichocompost + 50 % RDF and T 6 = 100% Trichocompost + RDF. For the purpose of evaluating the experimental outcomes, data on various parameters were evaluated. The analysis of various parameter data revealed significant differences in maize growth and yield, as a result of variety and different integrated nutrient management and their combination treatment. In case of different maize varieties the lowest grain yield (8.72 t ha -1 ) was observed in V 1 (WIN-142 maize genotype) treatment. Whereas cultivating Pioneer 3355 maize genotype (V 2 ) gave the highest cob length (20.86 cm), cob breadth (17.11 cm), number of rows cob (16.72), number of grains cob -1 (579.31), 1000-grain weight of maize (234.65 g) and grain yield (9.89 t ha -1 ). Among different doses of bio-fertilizers rated nutrient management strategies the highest cob length (22.58 cm), cob breadth (17.56 cm), number of rows cob -1 (18.17), number of grains cob -1 (616.48), 1000-grain weight (234.65 g) and grain yield (12.08 t ha -1 ) were observed in T 6 treatment. In case of combination, V 2 combination treatment gave the highest grain yield (13.08 t ha -1 ) in maize comparable to other treatment combination. Therefore, it would be suggested that cultivation of Pioneer 3355 maize genotype along with application of 100% Trichocompost + RDF (V 2 ) combination treatment would help to influence plant growth and increase its ability to enhance better yield production of maize

    GROWTH AND YIELD OF CARROT AS INFLUENCED BY POTASSIUM AND BORON

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    A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN DEPARTMENT OF HORTICULTUREA field experiment was conducted at horticulture farm of Sher-e-Bangla Agricultural University, Dhaka during the period from December 2020 to March 2021 in Rabi season to study the growth and yield of carrot as influenced by potassium and boron. The experiment consisted of two factors, and followed Randomized Complete Block Design (RCBD) with three replications. Factor A: Different levels of potassium (4) viz; K 0 = Control (0 kg K 2 O /ha), K 1 = 160 kg K 2 ii O ha -1 , K 2 = 180 K 2 O ha -1 , K 3 = 200 K 2 and Factor B: Different doses of boron application (3) viz; B 0 = 0 g H 3 water (Control), B 1 = 1 g H 3 BO 3 L -1 water and B 2 = 2 g H 3 BO 3 L -1 water. In case of potassium application the highest plant height at harvest (62.45 cm), fresh weight of leaves (97.67 g), root weight per plant (139.67 g), root length (13.47 cm), root diameter (4.32 cm), dry matter of leaves (12.30 %), dry matter of root (17.77 %), and marketable root yield per hectare (33.70 t) were recorded in K 3 (200 K 2 O ha -1 ) treatment. In terms of different doses of boron application, B 2 (2 g H 3 BO 3 L -1 water) treatment showed the highest plant height at harvest (63.45 cm), fresh weight of leaves (105.06 g), root weight per plant (138.71 g), roots length (13.98 cm), root diameter (4.15 cm), dry matter of leaves (12.56%), dry matter of carrot roots (17.87 %), marketable yield per hectare (32.98 t) . Due to combined effect of potassium and boron the treatment K 3 B 2 BO 3 (200 K 2 with 2 g H 3 BO 3 L -1 water) affected carrot plant growth and yield and recorded the highest value of plant height (66.60 cm) at harvest, fresh leaves weight per plant (111.50 g), root weight per plant (153.00 g), root length (14.37 cm), root diameter (4.37 cm), dry matter of leaves (14.33 %), dry matter of root (18.92 %), marketable yield per hectare (37.67 t) and benefit-cost ratio of 2.44 than compared to other treatment combinations. Therefore, it is suggested that application of 200 kg K 2 O ha -1 along with 2 g H 3 BO 3 ) was found suitable for growth and yield of carrot

    DEVELOPMENT OF LOCALLY ENGINEERED LOW-COST RECIRCULATING AQUACULTURE SYSTEM (RAS) IN BANGLADESH

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    Abstract The Recirculating Aquaculture System (RAS) is a healthy method of producing fish in which fish are continuously grown in the same water at high densities in regulated environments. The method guarantees every environmental factor that attests to a fishfriendly atmosphere and a high level of culture system, which would create a new export market for various local species. Bangladesh hence has a significant demand for aquaculture mechanization and intensification through RAS. The RAS system must be affordable, easy to use, and efficient. The usage of regional resources in a certain fish culture, the surrounding environment, and fish pricing must all be taken into account in the design. Testing of local species is therefore necessary for the creation of an effective RAS. One of the most important ways to maximize water reuse and increase fish output in Bangladesh is to establish and test low-cost RAS utilizing local resources. In addition to these, using solar power to reduce energy costs would be a wise move. For this reason, the goal of the current research project is to create a locally manufactured RAS through the fabrication of crucial components for the intensive cultivation of high-value species utilizing resources that are readily available and indigenous technology. For the purpose of cultivating commercial fish species, a project is developed to create, modify, and validate a locally engineered RAS. To ascertain the current state of RAS in Bangladesh, a KII was carried out with various RAS entrepreneurs, importers, equipment makers, and service providers. Among the various important concerns, some of the more significant ones were improper RAS design, insufficient technical expertise, a shortage of experienced labour, equipment selection, water flow rate computation, species selection, excessive operating costs, etc. In order to lower the RAS's operating costs, an engineering design and technical specifications were created based on the findings. The water recirculation system was designed using an underground gravity flow mechanism. The water recirculation system was designed using an underground gravity flow mechanism. Low-cost tanks with a sloping bottom were designed and built. A total of twelve FRP tanks and twelve triple tanks with PVC supports, each with a capacity of 3.5 cubic meter, were built. To get rid of the majority of the solid particles in the water, a low-cost vortex filter was added to the system. It was noted that the material used in Moveable Bed Reactors (MBBRs) manufactured locally is effective in removing ammonia from water. An oxygen cone constructed locally proved successful in raising the inflow water's oxygen content. When compared to traditional RAS, it was found that locally designed, low-cost RAS is efficient in raising fish using less energy. Keywords: indoor fish culture, intensive aquaculture, recirculating aquaculture, energ

    STUDY ON INSECT DIVERSITY AND POLLINATION EFFECT ON THE YIELD OF ELEPHANT APPLE

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    A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN ENTOMOLOGYA study was conducted to find out the insect diversity their pollination effect and effect of netting on the yield of elephant apple during the period of June to November 2021 at the Sher-e-Bangla Agricultural University campus, Dhaka. Performance of insect pollination on the yield of elephant apple were investigated and the findings were studied. During observation in total six different species (Apis cerana, Apis dorsata, Xylocopa sp., Vespa sp., Camponotus copressus and Syrphes sp.) five different families of insects namely apidae, Vespidae, anthophoridae, formicidae and syrphidae were found under two orders (Hymenoptera and Diptera) were found as flower visiting insects of elephant apple. Among the different insect pollinators, Apis dorsata was the predominant species found to visit the elephant apple flowers during the entire flowering period. The average population of Apis dorsata was recorded 5.00 insects per flower which represented 47.62% of population of total insect pollinators visiting elephant apple flowers. The number of insect pollinator from Apidae were 2, Vespidae-1, Formicidae-1, Syrphidae-1 and Anthoporidae-1 respectively. The number of insect abundance of these following species were, Apidae-33.33%, Vespidae-16.67%, Formicidae16.67%, Syrphidae16.67% and Anthoporidae-16.67% respectively as flower visitors. The ShannonWiener diversity index in elephant apple flower for species was 1.119, respectively with 6 species richness, where the evenness was 0.695. For abundance of different insect pollinators on Elephant apple flowers taken during the flowering period from the morning 6.00 am to 7.00 pm once a week at following intervals 6.00-7.00 am, 7.00-9.00 am, 9.00-11.00 am, 11.00- 1.00 pm, 1.00-3.00 pm, 3.00-5.00 pm,the highest foraging duration was recorded for Apis dorsata 1.4 minute per flower. Considering without netting and netting condition, the average number of fruit harvested per branch of elephant apple plant were 7.00 (no.) and 0.00 (no.). Plants with netting and without netting condition, the total weight of fruit per plant of elephant apple plant were 464.00 kg and for netting treatment no fruits were developed and the total yield of elephant apple plant were 92.8 ton per ha. and for netting treatment no fruits were developed

    EFFECT OF GIBBERELLIC ACID ON THE GROWTH AND YIELD OF TOMATO (Solanum lycopersicum L.) UNDER SALT STRESS

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    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 AGROFORESTRY AND ENVIRONMENTAL SCIENCESoil salinity limits agricultural production significantly. A pot experiment was conducted in the field laboratory of the Department of Agroforestry and Environmental Science, Sher-e-Bangla Agricultural University, Dhaka- 1207, during the months of October 2021 to April 2022 to observe the performances of gibberellicacid [G0 (0 mg/L), G1 (50 mg/L), G2 (100 mg/L)] on the growth and yield of tomato (BARI tomato 16) under salt stress [S0 (0 mM NaCl), S1 (50 mM NaCl) and S2 (100 mM NaCl), S3 (150 mM NaCl) following completely randomized design with three replications. Salinity stress hampered growth and productivity of tomato in dose dependent manner. Salt stress primarily reduced leaf number and chlorophyll pigments in leaf which consequently decreased the plant height as well as plant biomass including fruit yield. But application of gibberellic acid could not alter the saline induced damages. It drastically increased the plant height in both stressed and non-stressed condition but deformed the fruits and destroy marketable yield

    ADOPTION DETERMINANTS OF ORGANIC FERTILIZER USE ON BORO RICE PRODUCTION IN SOME SELECTED AREAS OF PABNA DISTRICT IN BANGLADESH

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    A Thesis Submitted to the Department of Agricultural Economics Sher-e-Bangla Agricultural University, Dhaka In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN AGRICULTURAL ECONOMICSNow a days organic farming is an important and most demandable method in agriculture. Rice plays a pivotal role in all sphere of life and when it comes to food security of the rural farmers. It is the most important commodity in terms of livelihood and food. It is not only staple food but also center of the entire Bengali life. Among various types of rice, Boro rice is grown all over the Bangladesh for export as well as domestic market. The present study was designed to analyze the socio-economic profile of the respondent, find out the determinants of organic fertilizer use on Boro rice production and identify the problems of organic fertilizer use on Boro rice production. Three villages were selected under Sujanagar Upazila and others two villages from Bera Upazila. Farmers are mainly using cowdung and compost as the organic fertilizer in the Boro rice production. Primary data were collected through purposively random sampling from 120 farmers. About 60 farmers use organic fertilizer in Boro rice production, whereas others 60 farmers who did not use organic fertilizer. Descriptive Statistics, Binary Logistic Regression model used in the study. Majority of the farmers who used organic fertilizer was medium aged farmers with medium family size, and they had completed their secondary level of schooling with medium income. In the contrary, who did not use organic fertilizer, had medium family size with medium income, and they had no formal education. Most of the organic fertilizer user did not use of credit facility, whereas inorganic fertilizer user use credit facility, although organic fertilizer user more engaged on various organizational membership than inorganic fertilizer user. Organic fertilizer user having livestock, but most of the inorganic fertilizer user have no livestock. The Logistic Regression Model reveals that education, training, extension service, information access, livestock, market distance, bicycle/van ownership were significant and positive, on the other hand age, family size, credit facility were significant and negative. Among various problems of using organic fertilizer on Boro rice production, lack of credit facility ranked first, high price of inputs ranked second, and lack of training ranked third position in the study area. This scenery will be changed with adequate use of credit facility, provision of organic fertilizer to the farmers. Government should give more emphasis on training and raising awareness on organic fertilizer use on Boro rice production

    INFLUENCE OF SEA WEED EXTRACT WITH REDUCED RATES OF CHEMICAL FERTILIZER ON GROWTH, YIELD AND QUALITY OF ONION

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    A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN DEPARTMENT OF HORTICULTUREThe experiment was conducted in the month duration of March, 2021 to June, 2021 at Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka 1207. This experiment mainly focuses on the growth and yield of BARI onion 3 by using organic fertilizer based on reducing of chemical fertilizer. The experiment consisted of six treatments: NPK (control), Vermicompost (8t/ha), 90% recommended dose of NPK with 400 ml/ha Sea Weed, 80% recommended dose of NPK with 600 ml/ha Sea Weed, 70% recommended dose of NPK with 400 ml/ha Sea Weed and 50% recommended dose of NPK with 1000 ml/ha Sea Weed and was laid out in Randomized Complete Block Design with five replications. For this study, data were calculated on plant height(cm), number of leaves, leaf diameter(cm),leaf length(cm), leaf length(cm) and also after harvesting data were collected on bulb length(cm), bulb diameter(cm), fresh weight of bulb per plant(g), dry weight of bulb per plant(g), yield per plot(g) and yield per ha (t/ha). This study showed the best results for the following parameters were produced by 1000 ml sea weed extract with 50% NPK treatment, the maximum plant height (50.60 cm), maximum number of leaf 9 per plant, maximum leaf diameter of plant (0.78 cm) and yield (16.64 t/ha). On the other hand, in treatment 1 the following parameters were very poor compare to others. It is clearly showed that the better result in various parameters in this experiment was produced by sea weed extract (1000 ml/ha +50%NPK). So, the study showed that the application of biostimulant, sea weed enhances the growth and yield of onion

    PROPAGATION OF JHAU (Casuarina equisetifolia) AND WAX JAMBU (Syzygium samarangense) THROUGH AIR LAYERING USING DIFFERENT ROOT PROMOTING SUBSTANCES

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    A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN DEPARTMENT OF HORTICULTUREThe experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University (SAU), Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh to evaluate the influence of propagation of jhau (Casuarina equisetifolia) and wax jambu (Syzygium samarangense) through air layering using different root promoting substances during the period from March, 2022 to June, 2022. The experiment was laid out in Completely Randomized Design (CRD) with three replications. Eight treatments, T 0 : Control (75% Soil + 25% Cow dung); T 1 : 75% of (75% Soil + 25% Cow dung) + 25% Vermicompost; T 2 : 75% Soil + 25% Cow dung + Garlic extract (50 g/L); T 3 : 75% Soil + 25% Cow dung + Aloe vera gel (20 ml/L); T 4 : 75% Soil + 25% Cow dung + IBA @ 50 ppm; T 5 : 75% Soil + 25% Cow dung + Honey (2 table spoon/L); T 6 : 75% Soil + 25% Cow dung + NAA @ 40 ppm and T 7 : 75% Soil + 25% Cowdung + IAA @ 30 ppm were included in the study. Results showed that the significant variations were observed among different parameters. In the case of different treatments performance of jhau, T 1 showed best performance in terms of total number of roots per layer (70.20), rooting percentage (95.55%) and survival percentage after placing in the polybag (90.40%) and the order of rank of study was T 1 > T 4 > T 6 > T 3 > T 2 > T 7 > T 5 > T 0 . On the contrary for wax jambu, T 6 showed best performance in terms of total number of roots per layer (63.60), rooting percentage (97.76%) and survival percentage after placing in the polybag (74.67%) and the order of rank of study was T 6 > T 1 > T 4 > T 5 > T

    EVALUATION OF F 2 POPULATIONS OF TOMATO THROUGH ASSESSMENT OF HERITABILITY AND CHARACTER ASSOCIATIONS

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    A Thesis Submitted to faculty of Agriculture Sher-e-Bangla Agricultural University, Dhaka In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN GENETICS AND PLANT BREEDINGThe present study was investigated to find degree of genetic variability, heritability, and genetic advance of the yield and its contributing attributes among F 2 populations of tomato. The research study was conducted in a randomized complete block design (RCBD) with three replications during the rabi season 2020-2021 at the Sher-e-Bangla Agricultural University, Dhaka. The F 2 populations were characterized for morphological traits e.g. days to first flowering, days to fruiting, plant height, branches per plant, cluster per plant, fruits per plant, and yield per plant. Analysis of variance regarding morphological attributes showed highly significant differences (P≤ 0.01) among tomato F 2 populations. Minimum days to first flowering and days to first fruiting were recorded for genotype P 3 (23.33 days and 40.33 days), respectively. Maximum plant height, clusters per plant, fruits per plant, and single fruit weight were observed for C12, C5, C5, and C4 with values of 118.22 cm, 9.89, 38.89, and 100.47 g. Little differences were observed between the phenotypic coefficient of variation and genotypic coefficient of variation for all traits except branches per plant and cluster per plant indicating that most of the traits were minor influenced by environmental factors for their phenotypic expression. All traits had high broad heritability (h 2 b), but only branches per plant (42.90) were found moderate heritability. Low genetic advance as a percent of mean (9.62) was recorded for days to first fruiting. Moderate genetic advance was found in fruit diameter (15.59) and plant height (19.21). Low to moderate genetic advance suggests the action of both additive and nonadditive genes and the favourable influence of environment in the expression of the mentioned traits. Yield per plant was positively and significantly associated with plant height (0.417** and 0.317*), branches per plant (0.370** and 0.276*), cluster per plant (0.519** and 0.393**), fruits per plant (0.573** and 0.507**), fruit diameter (0.355** and 0.493**) and single fruit weight (0.586** and 0.447**) at both genotypic and phenotypic level. High positive direct effects on total yield per plant were shown by plant height (6.263) followed by single fruit weight (3.611), number clusters per plant (2.610), fruit length (2.178) and fruits per plant (0.367). Plant height, single fruit weight, cluster per plant having high positive direct effects along with positive significant correlation with yield indicating that these traits can be selected for the improvement of fruit yield. Positive and highly significant heterosis was found in F 2 population for number of fruits per plant in cross C5 (23.68%) and C1 (8.13%) over better parent and cross C5 (79.48%), C6 (60.51%), C1 (56.92%) and C9 (41.03%) over standard parent and for fruit yield per plant cross C8 (45.50%), C5 (45.39%), C12 (33.53%) and C6 (30.42%) over better parent and cross C5 (51.82%), C1 (44.92%), C6 (44.17%), C4 (29.37%) and C3 (29.10%) over the check variety. The crosses C5 (23.68% and 79.48%) for number of fruits per cluster, C8 (50.72%) and C4 (49.46%) for single fruit weight showed significantly high percentage of positive heterosis over better and standard parent, respectively. The cross C1 (-28.91%), C10 (-31.25%), C6 (-20.56%) showed negative heterosis for days to first flowering. Based on the desired morphological traits and heterosis manifestation of the yield attributing traits of the F 2 population, the cross combination C1, C5, C6, C8, could be selected for further improved and advancement of the lines to develop stable inbred lines for future tomato breeding program

    EFFECTS OF DIFFERENT LEVELS OF ARSENIC ON GROWTH, YIELD AND NUTRIENTS CONTENT OF BR-14, BRRI dhan58, BRRI dhan67, BRRI dhan88 AND BRRI dhan92

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    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 CHEMISTRYAn experiment was conducted from November 2020 to April 2022 to study the effect of arsenic on the growth, yield and nutrients content of five boro rice varieties viz. V 1 (BR-14), V 2 (BRRI dhan58), V 3 ii (BRRI dhan67), V 4 (BRRI dhan88), and V 5 (BRRI dhan92) which were comprised of five arsenic treatments viz. As 0 (20 ppm), and As 4 (control; no arsenic added), As 1 (2 ppm), As 2 (40 ppm). In case of single effect, the maximum growth (plant height, leaf length, leaves number, total tillers number) were found in V 3 (BRRI dhan67) variety whereas minimum growth parameters for plant height and leaf length were found in V 5 , for leaves number V 4 and total tillers number were found in V 2 . The control treatment As 0 (no arsenic) gave the maximum growth that was decreased by increasing of As level. Maximum yield parameters number of grains, number of filled grains, thousand grain weight and grain yield were found in V 2 variety whereas minimum yield parameters (panicle length, number of panicle) were found in V 5 but maximum straw yield was observed in V 1 variety. The control treatment As 0 (no arsenic produced) gave the maximum yield, which was decreased by increasing of As level. In case of combined effect maximum plant height, number of grains per panicle, number of filled grains per panicle, thousand grain weight and grain yield were found from V 3 As 0 treatment whereas maximum straw yield obtained from V 1 As 0 . P and K content decreased with increasing arsenic level but S and As content showed opposite trend. Maximum arsenic content was observed in V 4 As 4 treatment whereas minimum in controlled treatment. But considering everything it can be concluded that V 2 (BRRI dhan 58) performed best in terms of grain yield and As effect

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