Year 2017
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Item EFFECT OF NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND PROTEIN CONTENT OF BARI Alu-35(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) HASAN, MD. FARIDIA field experiment was conducted at the research field of Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from November 2017 to March 2018, to investigate the effect of nitrogen and phosphorus on growth, yield and protein content of BARI Alu-35. The experiment comprised of two factors, Factor A: Nitrogen levels (4): N 0 = control (0 kg N ha -1 ), N 1 = 75 kg N ha -1 , N 2 = 105 kg N ha -1 and N 3 = 135 kg N ha -1 ; and Factor B: Phosphorus levels (3): P 0 = control (0 kg P ha = 69 kg P ha -1 and P 3 = 92 kg P ha -1 . The experiment was laid in a Randomized Complete Block Design (RCBD) with three replications. The result revealed that nitrogen and phosphorus had significant effects on most of the growth, yield and quality parameters studied in this experiment. Among the four nitrogen levels, N 3 produced the highest plant height (19.72 cm, 34.56 cm and 60.39 cm respectively) at different days after planting, number of leaves plant -1 (11.33, 28.78 and 37.56 respectively) at different days after planting, number of stems hill -1 (4.33), stem dry matter content (17.80%), number of tubers hill -1 (10.11), average weight of tuber hill (74.39 g), yield of tuber (37.73 t ha -1 ), total soluble solids (7.30%), protein content (7.50%) and N 0 produced the lowest results. On the other hand, among the three phosphorus levels, P 2 produced the highest plant height (17.09 cm, 29.93 cm and 52.33 cm respectively) at different days after planting, number of leaves plant -1 (9.33, 24.33 and 32.67 respectively) at different days after planting, number of stems hill -1 (3.17), stem dry matter content (12.65%), number of tubers hill -1 -1 ), P 1 -1 (8.00), average weight of tuber hill (63.17 g), yield of tuber (32.93 t ha -1 ), total soluble solids (5.96%) and protein content (6.16%) and P 0 produced the lowest results. Among the twelve treatment combinations, N 3 P 2 showed highest results and N 0 P 0 showed lowest results. Therefore, the application of 135 kg N ha -1 with 92 kg P ha -1 was suitable for better growth, yield and quality of BARI alu-35.Item EFFECT OF DIFFERENT LEVELS OF POTASSIUM ON NODULATION, QUALITY, YIELD AND NUTRIENT UPTAKE OF MUNGBEAN(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) ISLAM, MD. ARIFA field experiment was conducted at the Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh during the period from March to May 2017 to study the effect of different levels of potassium on yield contributing characters of mungbean. The experimental soil was Deep Grey Terrace Soil having pH of 6.4. Six levels of potassium (0, 30, 40, 50, 60 and 70 kg ha -1 ) were used in the study. The experiment was carried out in Randomized Complete Block Design with three replications. Results revealed that grain and stover yield of mungbean (BARI Mung-6) increased with increasing the levels of potassium. The maximum significant grain yield (1209 kg ha -1 ) and stover yields (2742 kg ha -1 ) were obtained with the treatment T 5 (60 kg K ha -1 ) and also gave the highest pods plant -1 , pod length, seeds pod -1 , 1000 seed weight, nodule plant , nutrient contents in seed and stover. Among the six treatments, the T 5 (60 kg ha -1 ) treatment with BARI Mung-6 showed the best performance with maximum yield. The N, P and K contents of mungbean plant increased significantly at maturity stage with the highest doses of potassium fertilizers. Application of potassium fertilizers increased organic matter, N, P, K and B status of post-harvest soil significantly.Item DETERMINATION OF PESTICIDE RESIDUES IN VEGETABLES COLLECTED FROM BOGURA DISTRICT IN BANGLADESH(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) PARVEN, ANEYThe study was conducted to analyze pesticide residues in two common vegetables (country bean and yard long bean) collected from five different areas (Raja Bazaar, Gabtali Bazar, Sonatola Bazar, Mohasthangor Bazar and Shibganj Bazar) of Bogura District from November, 2017 to February, 2018. The collected samples were carried to the Pesticide Analytical Laboratory, Entomology Division of Bangladesh Agricultural Research Institute (BARI), Gazipur. The collected samples were analyzed using Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) extraction technique and Gas Chromatography (GC) coupled with Flame Thermionic Detector (FTD) for the determination of pesticide residues in 35 samples of country bean and 35 samples of yard long bean. Among the 35 analyzed samples of country bean, 4 samples (11% of the total number of samples) contained pesticide residues of Quinalphos. Among these 4 samples, 2 had residues above the Maximum Residue Limit (MRL) and 2 had residues below the Maximum Residue Limit (MRL) set by European Commission. Similarly out of 35 samples of yard long bean, 5 samples (14% of the total number of samples) contained pesticide residues of Chlorpyrifos, Dimethoate and Quinalphos. Among this 5 samples, 2 had residues above the Maximum Residue Limit (MRL) and 2 had residues below the Maximum Residue Limit (MRL) set by European Commission and 1 sample contained two pesticide residues such as Dimethoate and Chlorpyrifos. The level of detected Dimethoate residue was above the Maximum Residue Limit (MRL), while the level of detected Chlorpyrifos residue was below the Maximum Residue Limit (MRL) in this contaminated sample. Quinalphos and Dimethoate were detected in most of the contaminated country bean and yard long bean samples, while Chlorpyrifos was also detected. This study reflects the overall scenario of pesticide contamination in vegetables especially in country bean and yard long bean available in the local markets of Bogura District, which will help the consumer to be aware of their health and safety.Item PERFORMANCE OF RICE CULTIVARS TO DIFFERENT CONCENTRATIONS OF ARSENIC AT SEEDLING STAGE(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) SHOPON, NUR ALAMA two factorial tray experiment was conducted in the net house of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207, during November 2017 to January 2018, to study the performance of rice cultivars to different concentrations of arsenic at seedling stage. Factor A: different doses of arsenic [As 0 = No arsenic added (control), As iv 1 = 3 ppm arsenic, As = 6 ppm arsenic, As 3 = 9 ppm arsenic and As = 12 ppm arsenic (soil water basis)] and Factor B: different rice cultivars [T 4 1 = BINA dhan-8, T = BINA dhan-10, T 3 = BINA dhan-14, T 4 = BINA dhan-18, T = BR 14, T 7 = BR 16, T 8 = BRRI dhan28, T 9 5 2 2 = BR 3, T = BRRI dhan29, T = BRRI dhan36, T 11 = BRRI dhan45, T 12 = BRRI dhan47, T = BRRI dhan50, T 14 = BRRI dhan55, T 15 = BRRI dhan58, T = BRRI dhan59, T 17 = BRRI dhan60 and T 18 16 = BRRI dhan61]. Different growth and yield parameters varied significantly due to difference in the doses of arsenic. Arsenic toxicity adversely affects all the growth and yield related attributes of all rice cultivars. BINA dhan-18 produced highest seedling height and BRRI dhan29 produced the lowest. BRRI dhan-61 produced highest shoot weight and BR 3 produced the lowest. BINA dhan-18 produced maximum root length and BRRI dhan45 produced the lowest. BRRI dhan29 produced maximum root weight and BR 3 produced the minimum. BRRI dhan29 produced maximum total dry matter and BR 3 produced minimum. BRRI dhan29 contained maximum N in shoot and BINA dhan-10 contained the minimum. BRRI dhan61 contained maximum P in shoot and BR 3 contained the minimum. BRRI dhan61 contained maximum K in shoot and BR 3 contained the minimum. BRRI dhan29 contained maximum N in root and BINA dhan-8 contained the minimum. BRRI dhan61 contained maximum P in root and BR 3 contained the minimum. BRRI dhan61 contained maximum K in root and BR 3contained the minimum.Item INTEGRATED EFFECTS OF INORGANIC FERTILIZER AND POULTRY MANURE ON THE GROWTH LEAF BIOMASS YIELD NUTRIENT UPTAKE AND PHARMACEUTICAL COMPOUNDS OF ALOEVERA GROWN IN SOME SOIL TYPES OF BANGLADESH(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) CHOWDHURY, TANZINAloe vera had been used for numerous medical and cosmetic applications since ancient times. The gel of A. vera possesses healing ability of skin burns and cutaneous injuries, prophylactic effect against radiation leucopenia, antiulcer, anti-diabetic, anti-fungal, anti-bacterial, inflammationinhibiting effect, anti-AIDS and anti-cancer. Unfortunately little attention was paid on different aspects of this herb in Bangladesh. Two separate experiments were conducted sequentially in the Department of Agricultural Chemistry, Bangladesh Agricultural University and Bangladesh Institute of Nuclear Agriculture, Mymensingh to find out the most suitable soil for A. vera cultivation, integrated effects of inorganic fertilizer (IF) and poultry manure (PM) on the growth, leaf biomass yield, nutritional and pharmaceutical constituents of A. vera and post-harvest fertility of the soil. The economics of A. vera cultivation and public perception regarding the medicinal and commercial importance of this plant was also studied. Seedlings of 18 months old were collected from Shomvogonj, Mymensingh and planted during last week of May, 2017 for soil screening experiment, and 2 nd week of October, 2017 for integrated experiment, respectively following CRD with three replications. Based on the findings of soil screening data, acid soil was used for the integrated experiment. Most of the soils were clay to clay loam in texture except non-calcareous and charland soil. The soils were acidic to neutral and organic matter content was low to moderate except peat soil. Different soil types significantly influenced the growth and leaf biomass yield of A. vera. Highest plant height, leaf number, leaf area and fresh weight were recorded from the plant grown in non-calcareous soil whereas maximum fresh gel weight, dry leaf weight and yield increase over acid sulphate soil were from the plant grown in calcareous soil. The performance of the soils in relation to leaf biomass yield was of the following order: calcareous ≥ acid ≥ non-calcareous > charland > saline 1 > saline 2 > peat > acid sulphate soils. Different combinations of IF and PM also exerted significant influence on the growth, leaf yield, nutritional and pharmaceutical contents of A. vera. The highest values of growth parameters and yield were obtained from the plant treated with 25% IF and 75% PM (IF 25 ) at harvest. About 153% yield increase over control was obtained from this treatment. The concentration and uptake of N, P, K and S were highest when the plants were treated with 100% IF whereas the highest uptake of Ca, Mg, Fe, Mn and Zn was noticed from 25% IF and 75% PM. Aloin concentration was increased with the increased application of PM. In contrast, highest chlorophyll, phenolic and flavonoid concentrations were found in the plants receiving the treatment IF 25 . Fresh gel weight were significantly and positively correlated with plant height, number of leaves, leaf area and fresh leaf weight. Pharmaceutical compounds and mineral nutrients were also significantly and positively correlated with each other. Fresh gel weight and mineral contents like NPK were also strongly and positively correlated. The pH, organic matter, total N, exchangeable K, Ca, Mg and available P, S, Zn, B contents of post-harvest soil were significantly increased with the increased levels of PM. Based on BCR value (1.72), IF 25 PM 75 was the best profitable treatment. People’s perception revealed that 61% respondents used A. vera for curing various ailments and 72% respondents opined that the cultivation of this crop could be two to three times more profitable than other crops. Considering the overall socio-economic conditions of the farmers, it might be advised to cultivate A. vera in acid/calcareous soils applying 75% PM (5 t ha -1 ) along with 25% inorganic fertilizer (N, P, K and S @150, 80, 120 and 30 kg ha -1 , respectively) under the agro-climatic conditions of the study area.Item ASSESSMENT OF CHITOSAN AS PRESERVATIVE ON SELF LIFE AND MAJOR NUTRIENT CONTENTS ON FRUITS AND VEGETABLES(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) RAHMAN, MUST. ALIMAAn experiment was conducted in the laboratory of the Bangladesh Atomic Energy Commission in Ganakbari, Savar, Dhaka and the laboratory of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka-1207 during September 2017 to March 2018 to assessment of Chitosan as preservative on self life and major nutrient contents on fruits and vegetables. Prawn shells and some selected fruits and vegetables were collected from different markets near the Dhaka city. In this study, fruits and vegetables were collected from 3 markets of Bank Town Bazar, Savar Bazar, Ganakbari Bazar. At first some selected fruits and vegetables were divided into 2 or 3 groups. Among them 1 group for control and other group for treatment. Chitosan was applied on treatment groups by deep coating method. The factorial experiment was laid out with three replications [Samples are BC= Banana Control, BT 1 = Banana Treatment 1 = Banana Treatment 2 , PC= Papaya Control, PT = Papaya Treatment 1 , TC= Tomato Control and TT = Tomato Treatment 1; T 1 = 500 ppm Chitosan and T = 1000 ppm Chitosan]. Color index shows a significant difference (p≤0.05) among the varieties. In case of color index and weight loss the significant difference were higher in Tomato and Papaya than Banana, while EC and pH levels were remains similar. In case of Total Suspended Solids (TSS) and Total Dissolved Solids (TDS), percentages of TSS and TDS were also remaining similar. In case of Total Viable Count (TVC) or Total Bacterial Count and Total Fungal 6 | P a g e , BT 2 1 1 2 Count (TFC) or Yeast & Mold Count (YMC) the significant difference is higher in control of Banana, Tomato and Papaya than treatment-1 and treatment-2 of Banana, Tomato and Papaya. In case of Nitrogen (N), Phosphorus (P) and Potassium (K) content, percentages of Nitrogen and Potassium content were remaining similar or high, while Phosphorus (P) content was remaining similar. This study points out that 500 ppm chitosan is sufficient for storage of tomatoes, papayas and bananas at low temperature and highhumidity.This study shown that coating with chitosan and a chitosan derivative can be employed to extend the shelf life and to improve quality offruits and vegetables by delaying ripening, reducing weight loss and reducing microbial growth in fruits and vegetables. From the experiment, it can be concluded that 500 ppm dose of chitosan is more effective compared to that of 1000 ppm dose of chitosan in Banana fruits. Therefore, it suggests that the use of Chitosan as preservative on self life could be an effective approach to extend the shelf life and to improve quality of fruits and vegetables by delaying ripening, reducing weight loss and reducing microbial growth in fruits and vegetables.Item PHYTOTOXIC EFFECTS OF Eucalyptus camaldulensis ON SOME SELECTED MONOCOT AND DICOT PLANT SPECIES(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) HOSSEN, MD. UZZALThe present study was conducted to investigate the phytotoxic effects of aqueous methanol extract on leaf and bark of Eucalyptus camaldulensis on germination and seedling growth of some selected monocot (foxtail millet and barnyard grass) and dicot (cauliflower, broccoli and tomato) plant species from June 2016 to June 2017. The aqueous methanol extract obtained from leaf and bark of eucalyptus followed six different concentrations ( T 0 = 0 g mL -1 , T 1 =0.001 g mL =0.003 g mL -1 , T 3 =0.01 g mL -1 , T 4 =0.3 g mL -1 , T 5 =0.1 g mL -1 ) were tested on five test species under laboratory condition. The aqueous extract obtained from leaf of eucalyptus were tested on five test species under net house at six different concentrations (T 0 = 0 ppm, T 1 =1 ppm, T 2 =2 ppm, T 3 =3 ppm, T =5 ppm ). Rsults revealed that a pronounced inhibitory effect of the aqueous and aqueous methanol leaf and bark extract of eucalyptus was observed on seed germination and seedling growth of five test plant species. The germination efficiency, plumule and radicle length and dry weight of plants were completely inhibited at the highest concentration of aqueous extracts (0.1g mL ) whereas least inhibition was observed at control at both laboratory and field condition. Maximum treatment effect was observed in germination and seedling growth of monocot plants (foxtail millet and barnyard grass) followed by three dicot plants (cauliflower, broccoli and tomato). Since foxtail millet and barnyard grass was mostly affected by different treatment effect, thus phytotoxic effect of eucalyptus may reduce weed competition with crops by affecting the germination and seedling growth of foxtail millet and barnyard grass. Therefore, it is possible to use these extracts as a component for production of bio-herbicides due to their phytotoxic effects on weeds and crops and considered as a natural way for sustainable weed management.Item ASSESSMENT OF DIFFERENT HEAVY METALS OF WINTER VEGETABLES GROWN AT DIFFERENT PLACES OF SAVAR THANA UNDER DHAKA DISTRICT(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) ISLAM, MD. MURADULThe experiment was conducted in the Agro- Environmental Chemistry laboratory of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka-1207 during the the period from December 2016 to May 2017 to assess different heavy metals of winter vegetables grown at different places of Savar thana under Dhaka district in Bangladesh. Eleven vegetable samples were collected from four intensively growing areas of Savar thana such as Sadapur kazi para, Nama Genda, Pathalia and Vagolpur and nearest two local market ie. Savar thana bazar and Genda bazar under Dhaka district. Different types (red amaranth, radish, radish spinach, carrot, tomato, brinjal, bottle gourd spinach, fenugreek leaves, bottle gourd, turnip and spinach) of vegetable samples were collected randomly from each selected location. Vegetables were collected at the stage of harvesting from farmers field and nearest local markets. Concentrations of five heavy met als (chromium, cadmium, lead, copper, and zinc) in veget abl es were estimated. The analyzed metals varied from species to species. The highest mean concentration of Pb (3.89 mg/kg) was observed in radish spinach which exceeded the permissible level (0.1 mg/kg) recommended by FAO / WHO (2011). The highest mean concentration of Cr (1.37 mg/kg) was found in red amaranth which was lower than the permissible level (2.3 mg/kg) recommended by FAO / WHO (2011). The highest mean concentration of Cd (0.20 mg/kg) was found in bottle gourd which was higher than the permissible level (0.05 mg/kg) recommended by FAO / WHO (2011).The maximum Zn concentration (2.07mg/kg) was obtained in fenugreek leaves.The highest mean concentration of Cu (1.29 mg/kg) was observed in red amaranth which was lower than the permissible level (40 mg/kg) recommended by FAO / WHO (2011).Item EFFECT OF ARSENIC ON THE GROWTH, YIELD AND ARSENIC CONTENT IN LEAF AND GRAIN OF MAIZE (Zea mays)(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) ISLAM, MD. TANZIMThe experiment was performed in pot at the net house and laboratory, Department of Agcultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka during November 2016 to March 2017 and to assess the effect of arsenic on growth, yield and arsenic content in leaf and grain of maize (Zea mays). The experiment was conducted using two varieties viz. V 1 =BARI maize 7, V = Pacific 339 and five arsenic levels viz. T 0 = 0 mg As/kg soil, T 1 2 = 20 mg As/kg soil, T = 40 mg As/kg soil, T 3 =60 mg As/kg soil and T 4 2 =80 mg As/kg soil.Arsenic was added as sodium arsenate (Na 2 HAsO 4 .7H O).The experiment was set in completely randomized design (CRD) having two factors with three replications. Results showed that variety had produced plant height, number of leaves per plant, total dry mater, number of cob per plant, number of grain per plant, grain yield per plant.The taller plant was found in Pacific 339. BARI maize 7 achieved maximum number of cob per plant, number of grain per cob, grain yield per plant. Among the two varieties the higher grain yield per plant (31.79 g) was found in BARI maize 7. Different arsenic dose significantly affected all growth characters.The maximum plant height, number of leaf per plant, total dry matter , number of cob per plant, number of grain per cob were recorded at 0 mg As/kg of soil levels of arsenic. The highest grain yield (58.54g) per plant was also recorded at 0 mg As/kg of soil level of arsenic. Among the combined effects of varieties and arsenic, highest grain yield per plant (63.75 g) was observed from the combination of BARI maize 7 at 0 mg As/kg of soil arsenic level. Among the two varieties, the N content in leaf was highest (0.87 %) in BARI maize 7. The highest K content, P content and As content in leaf was found in Pacific 339. The highest N, P and K content recorded in shoot of BARI maize 7. The As content in stem was highest in Pacific 339. The highest N, P and K content recorded in grain of BARI maize 7. The As content in grain was highest in Pacific 339. Amount of arsenic concentration was increased by both varieties significantly with the increasing arsenic doses in soil.Item INFLUENCE OF VERMICOMPOST AND INORGANIC FERTILIZERS ON MITIGATION OF ARSENIC STRESS IN BRRI dhan47(DEPT. OF AGRICULTURAL CHEMISTRY, 2017) SHOHEL, MOHAMMAD ASHIK ELAHIAn experiment was conducted in the net house and the agro-environmental chemistry laboratory of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka-1207 during the Boro season of the year 2016-17 to evaluate the influence of vermicompost and inorganic fertilizers on the mitigation of arsenic stress in BRRI dhan47. The two factorial experiment was laid out in a Completely Randomized Design (CRD) with three replications. Factor A: different doses of arsenic on soil weight basis [As 0 =No arsenic applied, As 1 = 10 ppm arsenic, As = 20 ppm arsenic, As = 30 ppm arsenic] and Factor B: different doses of vermicompost and inorganic fertilizers [T 3 = Recommended doses of vermicompost + inorganic fertilizers, T 1 o = Recommended doses of inorganic fertilizers without vermicompost, T 2 = Recommended doses of vermicompost without inorganic fertilizers, T = Reduction of 40% of recommended doses of inorganic fertilizers + Addition of vermicompost to supplement the reduction of inorganic fertilizers, T = Reduction of 60% of recommended doses of inorganic fertilizers + Addition of vermicompost to supplement the reduction of inorganic fertilizers]. Arsenic was added from Sodium Arsenate (Na 2 HAsO 4 .7H 2 O). In case of fertilizers, T gave higher results in most growth, yield and yield contributing parameters (height, tiller number, effective tiller, filled grain, 1000 grain weight, grain and straw yield) and T 2 gave lower results; whereas for arsenic, maximum results were recorded from As 1 and minimum from As 3 . In interaction, As 0 T 2 produced higher results and As 3 T 1 0 produced lower results in most cases. The treatment T gave higher N, P and K content in grain, straw and root whereas, T 1 2 gave lower content; highest As content by T 1 4 and lowest by T . In case of arsenic content in grain, shoot and root, maximum results were recorded from As and minimum from As . In interaction, the maximum N, P and K content in grain, straw and root were found in As 0 0 T 2 and the minimum were observed from As treatment; whereas, highest As by As 3 T 1 and lowest by As 0 T 0 3 T 2 1 . Therefore, the treatment T showed lower arsenic in grain, shoot and root and T 1 showed the highest content.