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Journal Cover Bangladesh Journal of Agricultural Research
  [3 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 0258-7122
   Published by Bangladesh Journals Online Homepage  [109 journals]
  • Role of weather parameters on seasonal abundance of insects in a
           mangobased agroforestry in Bangladesh, with particular reference to mango
           hopper

    • Authors: S Namni, MR Amin, MRU Miah, MF Rahman, SJ Suh
      Pages: 197 - 205
      Abstract: Weekly sweeping was done by sweep net in order to collect insects to study the effect of weather parameters on the seasonal abundance of total insect species as well as mango hopper population in a mango-based agroforestry in Bangladesh during January to June 2013. The total insect species abundance was the highest during April to May, following the flushing of inflorescence and fruit set. At that time temperature and relative humidity were comparatively higher and there was rainfall. Mango hopper population was the highest in May and synchronized to fruit set. The abundance of total insect species and mango hopper population showed significant positive correlation with temperature, and relative humidity, while significant negative correlation with light intensity and non-significant positive correlation with rainfall. Multiple linear regression equation based on weather parameters revealed 59.2% and 61.7% role on population build up of total insect species and mango hopper, respectively. Temperature was found to be the most important effect which individually contributed 31.3% on population abundance of total insect species and 29.9% on mango hopper.Bangladesh J. Agril. Res. 42(2): 197-205, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32808
      Issue No: Vol. 42, No. 2 (2017)
       
  • Morphological characterization of chilli germplasm in Bangladesh

    • Authors: S Rahman, MA Hossain, R Afroz
      Pages: 207 - 219
      Abstract: An experiment was conducted using 60 chilli germplasm in the experimental field of Plant Genetic Resources Centre (PGRC), Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during winter 2013-14 to characterize the germplasm based on morphological traits. Data were recorded as per the descriptor developed by Biovarsity International (BI) and Minimal Descriptor of Agri-Horticultural Crops. The germplasm were collected from different parts of Bangladesh and evaluated for 22 qualitative and 5 quantitative characters. Distinct variation among the germplasm was observed in all the qualitative parameters except cotyledonous leaf shape and fruit persistence. The maximum variation was observed in fruit colour both at mature and immature stage. Fruit colour was observed in four categories, namely green, black, green with blackish blush and dark green. The germplasm AMS-42, AMS-45, RI-35 and AH-5 showed black coloured fruit indicating their high carotenoid content. Leaf pigmentation was found in AMS-39, AMS-44, AMS-45, AH-1and RI-2 germplasm. Purple coloured corolla observed in AMS-42, AMS-45, AH-1 and AH-2 showing their high pollen fertility. The highest quantitative variation was observed in yield per plant suggesting that the evaluated germplasm could be used in developing high yielding variety. Considering the yield and yield contributing parameters the germplasm AI-1, AI-2 and RI-2 were found better among the 60 germplasm.Bangladesh J. Agril. Res. 42(2): 207-219, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32809
      Issue No: Vol. 42, No. 2 (2017)
       
  • Assessment of arbuscular mycorrhizal association in some fruit and spice
           plants of Rangamati hill district

    • Authors: MAH Bhuiyan, MB Banu, M Rahman
      Pages: 221 - 232
      Abstract: Rhizosphere soils of some fruit and spice plants from the Hill Agricultural Research Station, Bangladesh Agricultural Research Institute, Raikhali, Rangamati were collected during 2011-12 and 2012-13 for counting Arbuscular Mycorrhizal (AM) spore population, determining colonization (%) in their roots and studying AM structure. Assessment of spore population was done by following the Wet Sieving and Decanting Method. The percentage of AM infection was estimated by root slide technique. The spore number of 100g rhizosphere soil was recorded ranging from 120 in rhizosphere soil of Malta plant to a maximum of 410 in Atafal and Sofeda plants during 2011-12 and from 75 in rhizosphere soil of Phalsa plant to a maximum of 327 in Amlaki plant during 2012-13. Different fruit and spice plants showed different percentages of root colonization by AM fungi. Among the fruit and spice plants, the highest colonization (40%) was found in Jabotica, Phalsa and Sofeda plant, and the lowest colonization (6.6%) was found in Rambutan plant during 2011-12, but in 2012-13 the highest (61.3%) was result was observed in Bilatigab plant and the lowest (18.7%) was in Misti lebu, Malta and Tetul plant. The AM fungal structure in the root system of the selected fruit and spice plants varied in irrespective of fruit and spice species. Some plants had vesicles. Hyphae were present in most of the plants. Some plant species recorded Arbuscules. Both oval and spherical shape vesicles were found in this study.Bangladesh J. Agril. Res. 42(2): 221-232, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32810
      Issue No: Vol. 42, No. 2 (2017)
       
  • Utilization of specialized agricultural credit on onion and garlic
           cultivation in selected areas of Bangladesh

    • Authors: M Khatun, Tanvir MB Hossain, S Khandoker, MEA Begum, AFMS Anowar
      Pages: 233 - 247
      Abstract: Specialized Agricultural Credit (SAC) policy implemented by the Bangladesh Bank played a significant role to increase agricultural production specially spices. But documentation in this regard is scarce in Bangladesh. Therefore, this study captured the impacts of specialized credit on onion and garlic cultivation at Faridpur and Natore district respectively. The survey was conducted on two hundred farmers of which fifty were credit recipient farmers and fifty were non-recipient farmers of each district. Credit recipient farmers received on an average Tk. 26,255 for spices cultivation. Average cost to complete the process from receiving to repaying credit was Tk. 515. Farmers in the study areas utilized their maximum part of credit for spices cultivation (96.2%) followed by other crop cultivation (2.15%), family expenditure (1.4%) and business (0.25%). Due to getting credit facility farmers cultivated 16 decimals more land compared to previous years for spices, 42% of the farmers increased number of spices crop for cultivation, and farmers also increased amount of input use with better quality. For these, credit recipient farmers harvested spices with higher yield which finally helped in getting higher farm income. Credit recipient farmers received 7% higher net return from onion and 16% higher net return from garlic cultivation. Highest percentage of farmers (82%) mentioned that lack of information about spices credit was the main reason behind not receiving credit facility by large number of farmers. Specialized credit facility for farmers need to be widened through spreading information of spices credit facility among the farmers and increasing amount of credit.Therefore, domestic production of spices will increase and imports of spices from abroad will decrease.Bangladesh J. Agril. Res. 42(2): 233-247, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32811
      Issue No: Vol. 42, No. 2 (2017)
       
  • Combined effect of sulphur and boron on yield and yield contributing
           characters, nutrient and oil content of mustard

    • Authors: A Azam, MM Rahman, M Samsuzzaman, MA Main, MA Quddus
      Pages: 249 - 258
      Abstract: This experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka during 2014-2015 to know the combined effect of different levels of sulphur (S) and boron (B) on yield and yield contributing characters, nutrient and oil content of mustard and to find out the suitable combination of sulphur (S) and boron (B) for yield maximization of mustard. There were 16 treatment combinations comprising four levels each of S (S0= 0, S1=10, S2= 20 and S3= 30 kg S ha-1) and B (B0= 0, B1= 1, B2= 2 and B3= 3 kg B ha-1). It was replicated thrice in a randomized complete block design. Results showed that the combination of S and B (20 kg S ha-1 and 3 kg B ha-1) contributed positively for better performance of yield contributing characters of mustard. The combination S2B3 (20 kg S ha-1 and 3 kg B ha-1) produced the highest grain yield (2180 kg ha-1) followed by S3B2 and S3B3 treatment combination. The highest protein and oil content of mustard were recorded from S3B3 (30 kg S ha-1 and 3 kg B ha-1) treatment followed by S2B3 treatment combination. Therefore, the combination of S and B (20 kg S ha-1 and 3 kg B ha-1) might be suitable dose for cultivation of mustard in tejgaon series soils under agro-ecological zone of 28 (Madhupur Tract) Bangladesh.Bangladesh J. Agril. Res. 42(2): 249-258, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32812
      Issue No: Vol. 42, No. 2 (2017)
       
  • Assessment of genotype-by-environment interactions of white quality
           protein maize hybrids in Bangladesh

    • Authors: ABM Khaldun, BR Banik, MAL Akanda, KAMM Rahman, MM Rahman
      Pages: 259 - 271
      Abstract: Present study assessed genotypes and their interactions with environments (GEI) for plant height, days to maturity and grain yield of 40 maize hybrids including two local checks across five different locations of Bangladesh. Thirty eight white QPM (Quality Protein Maize) hybrids were collected from CIMMYT, Mexico. The AMMI (additive main effect and multiplicative interactions) and GGE (genotype + genotype × environment) model were used to assess the additive and multiplicative effects of the interactions. Significant variations were found for genotypes (G), environments (E) and GEI for all the studied characters. The environment of Gazipur is poor while those of Ishurdi and Rangpur are rich for QPM hybrids production. Considering three parameters viz., mean, bi and S2di, it was evident that all the genotypes showed different responses of adaptability under different environmental conditions. Among the hybrids E21, E23, E30 and E22 exhibited bi~1 and S2di~0 for all the characters under study, which clearly indicated that the hybrids are stable across the environments. The hybrids E11, E25, E37 and E4 had bi value significantly different from the unity with non significant S2di value for one or more characters studied, indicating high responsiveness of the hybrid but suitable for favorable environments only. E5 was a good yielder and stable over environments. Considering the yield potentiality and stability parameters five hybrids were found promising over the locationsBangladesh J. Agril. Res. 42(2): 259-271, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32813
      Issue No: Vol. 42, No. 2 (2017)
       
  • Effect of varied planting time and dehaulming on the yield potential,
           processing quality and economic benefit in potato

    • Authors: MS Alam, N Islam, MJ Hossain, MSR Bhuiyan, MI Hossain
      Pages: 273 - 288
      Abstract: A field experiment was conducted for producing higher processing grade tuber yield and quality by evaluating in relation to different planting times (31 October, 15 and 30 November) and dehaulming dates (80, 90 and 100 days after planting) during 2012-13 potato growing season at Bangladesh Agricultural Research Institute, Gazipur. Results revealed that different growth parameters like plant height, leaves number per hill and foliage coverage were significantly influenced by planting times. Processing and non processing grade tuber number and yield were significantly affected by all the treatments and their interaction. Significantly higher yield of processing grade tuber were recorded in November 15 planting in combination with all the dehaulming dates, ranged from 20.67 to 21.50 t/ha. Processing quality parameters like specific gravity, dry matter, reducing sugar content were significantly varied by planting times, dehaulming dates and their interaction. Whereas the potato chips colour score were not affected by the planting time and dehaulming but all the processing quality parameters were remained in acceptable range. The highest net return (Tk 1,68,404/ha) with a BCR of 1.93 was obtained in November 15 planting with dehaulming at 90 days after plantingBangladesh J. Agril. Res. 42(2): 273-288, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32814
      Issue No: Vol. 42, No. 2 (2017)
       
  • Financial profitability of improved wheat seed storage at household level
           in some selected areas of Bangladesh

    • Authors: MA Monayem Miah, QMS Islam, ME Baksh, FJ Rossi, TP Tiwari
      Pages: 289 - 299
      Abstract: Small and marginal farmers have little access to improved seed from institutional sources and are thus largely excluded from the benefits of new varieties. The production and storage of improved varieties seeds at the household (HH) level can overcome this problem. The study assessed the wheat seed storage systems used at HH level, with a particular emphasis on how the farmers are financially benefited by doing the seed storage business. The study analyzed data collected at random from Cereal Systems Initiative for South Asia in Bangladesh (CSISA-BD) project supported 210 farmers spread over three wheat growing Hubs namely Mymensingh, Faridpur and Rangpur. The study revealed that wheat growing farmers used different types of storage containers and showed the highest level of preference (score 7.2) on plastic/metal drum lining with polythene bag due to lower cost of storage, longevity, and seed quality maintenance. Wheat farmers retained on an average 95.7 kg of improved seed at household level. Majority of the retained seeds at HH level (64%) are being marketed and sold to neighbouring farmers, local markets, and dealers. Wheat seed storage at household level was a profitable business to most of the respondent farmers. They earned a reasonable net income (Tk.420-Tk.1471) from seed storage. The farmers who stored seed in plastic sac+poly bag received the highest net income (Tk.1471) due to less storage cost, and higher seed price. Respondent farmers did not face any critical problem during seed storageBangladesh J. Agril. Res. 42(2): 289-299, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32815
      Issue No: Vol. 42, No. 2 (2017)
       
  • Optimum sampling plan of yield contributing characters of pointed gourd

    • Authors: N Mohammad, MS Islam, KS Rahman, MM Rahman, MM Rahman
      Pages: 301 - 307
      Abstract: To improve efficiency in collecting data from field experiment on fruit attributes of pointed gourd (Patal) the sample size was studied for determining optimum sample size at Olericulture Division, Horticulture Research Centre (HRC) of Bangladesh Agricultural Research Institute (BARI) Gazipur during 2013-14. Fruit length, breadth and weight data were used to design optimum sampling plan for equal number of observations per cell. The observation on fruit length (cm), breadth (cm) and weight (gm) were taken from 7 plots/treatments at random. A randomized complete block design (RCBD) with 2 replications and seven treatments/varieties were used in this experiment. A sampling plan of selecting 3 plants at random and measuring 9 fruits per selected plant (27 fruits per plot and plots were 5m2 i.e. 2.5m long and 2m wide) was found to be optimum and economy for the measurement of fruit attributes of pointed gourd. It saves time required for constant vigilance opening of flower and subsequent observations.Bangladesh J. Agril. Res. 42(2): 301-307, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32816
      Issue No: Vol. 42, No. 2 (2017)
       
  • Abundance of arthropod insect pests and natural enemies in rice field as
           influenced by rice growth stages and neighboring crops

    • Authors: P Mukherjee, MMH Khan
      Pages: 309 - 319
      Abstract: Studies were conducted to record the abundance of arthropod insect pests and natural enemies in rice fields as influenced by rice growth stages and neighboring crops at the experimental farm of Patuakhali Science and Technology University (PSTU), Dumki, Patuakhali during 2012 in Boro rice season following randomized complete block design. Results indicated that rice-tree habitat showed the highest abundance of leafhoppers (100.75) followed by cricket (16.50), grasshoppers (15.25) and stink bugs (15.25). The lowest abundance of all insect pests was in rice-sesame habitat. No significant differences were found on the abundance of rice bug, rice hispa and stem borer populations. At seedling stage, the highest abundance of leafhopper (94.25) was recorded followed by grasshopper (47.00) and stink bug (26.50) while the lowest was stem borer (0.57) and rice hispa (6.00). At early tillering stage, maximum number of grasshopper (17.25) was recorded followed by cricket (7.00). At maximum tillering stage, the highest abundance of leafhoppers (122.5) was obtained followed by rice bug (62.00) and the lowest was the stink bug (7.00). At panical initiation stage, the highest abundance of rice bug (334.00) was recorded which was followed by leafhoppers (65.25) and the lowest was the cricket (15.75). No population of rice hispa and stem borer was recorded at maximum tillering and panical initiation stages. In case of natural enemies, the highest abundance of lady bird beetle (45.27) and damselfly (16.73) was found in rice-rice habitat. The highest abundance of ichneumonid wasp (57.53) was in rice-tree habitat and ground beetle (28.80) was in rice-sesame habitat. No significant differences were observed on the abundance of dragonfly, spider and dipteran fly among different habitats. Among different growth stages of rice plant, significantly the highest abundance of lady bird beetle was recorded at maximum tillering stage. The highest abundance of ichneumonid wasp and ground beetle was recorded at seedling stage. The highest abundance of damselfly, spider and dipteran fly was at early tillering stage. No significant difference was observed on the abundance of dragonfly among different rice growth stages.Bangladesh J. Agril. Res. 42(2): 309-319, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32817
      Issue No: Vol. 42, No. 2 (2017)
       
  • Import and export parity price analyses of selected vegetables and spices
           in Bangladesh

    • Authors: MA Rashid, MA Monayem Miah, Tanvir MB Hossain
      Pages: 321 - 341
      Abstract: The study was undertaken to find out the export potentialities of selected vegetables and import substitution of selected spices in Bangladesh. Seven hundred twenty vegetables and 320 spices growers, 25 suppliers, and 25 exporters were randomly selected for the study.Net margin analysis was done on both variable and total cost basis. Domestic resource cost (DRC) analysis was also done for estimating comparative advantage of the selected vegetables and spices. The study revealed that net returns were positive for all vegetables and spices producers. However, the highest net return was estimated for brinjal producers (Tk. 273799/ha) followed by bittergourd producers (Tk152145/ha). In the case of spices, the highest net return was received by ginger producers (Tk. 231399/ha) followed by onion producers (Tk. 122308/ha).Comparatively lower net returns were found for okra (Tk51830/ha) and garlic producers (Tk 99352/ha). Vegetables exporters received the highest net margin (Tk32852/ ton) from UK market which was higher than the Middle East market (Tk22869/ton).The highest benefit cost ratio (BCR) was calculated for brinjal (1.9) followed by ash gourd (1.8). For spices, BCR were 2.1and 1.8 for ginger and garlic respectively. Bangladesh had comparative advantage for producing all selected vegetables as the estimates of domestic resource cost (DRC) were less than one. The value of DRC for all selected spices were less than unity implied that the production of these spices would be highly efficient for import substitution. Therefore, the study have been undertaken to find out this issues.Bangladesh J. Agril. Res. 42(2): 321-341, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32818
      Issue No: Vol. 42, No. 2 (2017)
       
  • Profitability level of betel leaf (Piper betel L.) cultivation in some
           selected sites of Bangladesh

    • Authors: QMS Islam, MA Matin
      Pages: 343 - 351
      Abstract: The study was conducted in three betel leaf growing districts, namely Noakhali, Rajbari and Khulna during 2015-16 to assess the agronomic practices, profitability and to explore the constraints to betel leaf cultivation. The study revealed that betel leaf cultivation was profitable, although benefit cost ratio (BCR) in the first and second year were below one due to high investment cost and low yield. The highest yield and gross return were received by the farmers in the fourth year. The BCR was found highest in fourth year followed by third year and fifth year. The BCR at 12%, 15% and 20% rate of interest were 1.16, 1.15 and 1.14, respectively. IRR was 59% in current situation, 42% by 5% decrease of return and 52% by 5% increase of cost. The result indicated that betel leaf cultivation was profitable under changing situation of sensitivity analysis. Farmers faced some constraints like leaf rot disease, high price of boroj materials, non-availability of modern variety, low price of betel leaf, high price of oilcake, vine died, lack of capital, etc. Therefore, breeders should take initiative to develop high yielding varieties of betel leaf and pathologist may conduct research on betel leaf for controlling diseases.Bangladesh J. Agril. Res. 42(2): 343-351, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32819
      Issue No: Vol. 42, No. 2 (2017)
       
  • Effectiveness of some selected insecticides and botanicals against okra
           shoot and fruit borer

    • Authors: MA Mazed, MZ Alam, MRU Miah, MS Hossain, MA Awal
      Pages: 353 - 362
      Abstract: An experiment was conducted to evaluate the effectiveness of some selected insecticides and botanicals against okra shoot and fruit borer Earias vittella F. under field conditions. The insecticides tested were Relothrin 10EC @ 1ml l-1, Marshal 20EC @ 2ml l-1and Riva 2.5 EC @ ml l-1; and the botanicals were NSKE @ 50g l-1, Neem leaf extract @ 100g l-1 and Bishkatali leaf extract @ 100g l-1. An additional treatment of Mechanical control (hand picking) and an untreated control were maintained in the experiment for comparison. All treatments were applied at 15 days interval. Shoot infestation was the lowest in Marshal 20EC treated plot (4.34% at pre-fruiting and 3.55% at fruiting stage) and the highest was in untreated control plot (21.4%). The lowest fruit infestation by okra shoot and fruit borer was obtained with Marshal 20EC (5.07% n/n and 3.65% w/w) followed by Relothrin 10EC (5.43% n/n and 4.27% w/w) and the highest infestation was observed under untreated control plot (19.67% n/n and 19.81% w/w). The reduction of fruit infestation over untreated control ranged from 56.93-81.55% by number and 43.47-74.22% by weight. The highest marketable yield (10.46 t ha-1) was obtained in Marshal 20EC treated plot followed by in Relothrin 10EC 10.30 t ha-1 with the maximum benefit cost ratio (BCR) 6.72.Bangladesh J. Agril. Res. 42(2): 353-362, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32820
      Issue No: Vol. 42, No. 2 (2017)
       
  • Agro economic performance of Bio-slurry on boro rice cultivation in some
           sites of Moulvibazar district

    • Authors: MR Shaheb, MI Nazrul, ASM MR Khan
      Pages: 363 - 371
      Abstract: Soil fertility in Bangladesh is gradually diminishing and this is now becoming a critical issue. Biogas slurry is a renewable energy produced organic fertilizer can be applied for maintaining the fertility of soil. In this study, a two years experiment was conducted in the year 2011 and 2012 at the farmer’s field of Moulvibazar district under the agroecological zone 20 (AZE-20). The overall objective of the study was to observe the effect of bio-slurry on the agroeconomic performance of boro rice cultivation at on-farm condition. Three fertilizer treatments viz., T1: Soil test based (STB) inorganic fertilizer for high yield goal (HYG), T2: Integrated Plant Nutrient System (IPNS) based inorganic fertilizer + cowdung bio-slurry 5 tha-1 for HYG and T3: Farmer’s practice as control i.e. average of 20 farmers fertilizer application dose in boro rice were considered during experimentation. Results revealed that bioslurry based boro rice production is more profitable than chemical fertilizer. The highest grain yield (5.06 t ha-1) was recorded from IPNS with 5 t ha-1 cow dung slurry for HYG (T2) while the lowest yield was obtained from farmer’s practice. However, yield increase due to application of 5 t ha-1 Cowdung slurry slurry with IPNS based inorganic fertilizer was 115 and 124% compared to STB inorganic fertilizer and farmers followed treatment. Gross margin (Tk.65900 ha-1), benefit cost ratio (2.59) and marginal rate of return (451) were also obtained higher in the same treatment. Thus, nutrient package NPKSZn @102-12-25-18-2 kg + cowdung slurry 5 tha-1 might be helpful to get increased yield and improve soil health in AZE-20.Bangladesh J. Agril. Res. 42(2): 363-371, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32821
      Issue No: Vol. 42, No. 2 (2017)
       
  • Efficacy of insecticides in controlling pod borer (Helicoverpa armigera
           Hubner) infesting chickpea

    • Authors: Md Shahiduzzaman
      Pages: 373 - 378
      Abstract: A field experiment was carried out at the Regional Pulses Research Station of Bangladesh Agricultural Research Institute, Madaripur, Bangladesh during rabi season of 2013-14 and 2014-15 to select effective insecticides to control pod borer (Helicoverpa armigera Hubner) of chickpea (Cicer arietinum). Signinificantly the highest insect infestation and yield loss were recorded from untreated control. Spray with every insecticide for 3 times at 7 days interval reduced insect infestation and yield loss significantly over control in both years. Reduction in insect infestation was 11.77-18.77% and 6.34-13.34% and yield loss was 280-393-168-281 kgha-1 in 2013-14 and 2014-15, respectively. The highest grain yield was obtained with Tracer 45 SC (Spinosad) (1177 kgha-1) followed by Volium Flexi 300 SC (Thiamethaxam) (1045 kgha-1) and Belt 24 WG (Flubendiamide) (1020 kgha-1) in first year. In second year, Tracer 45 SC produced maximum yield (1396 kgha-1) followed by Volium Flexi 300 SC (1315 kgha-1) and Admire 200 SL (Imidacloprid) (1300 kgha-1). In 2013-14, the highest benefit cost ratio (3.39) was obtained with Volium Flexi 300 SC followed by Belt 24 WG (2.65) and Admire 200 SL (1.67). In 2014-15, the highest benefit cost ratio was also obtained with Voilum Flexi 300 SC (2.38) followed by Admire 200 SL (1.79) and Belt 24 WG (1.63). Comparing two years data considering highest profit, Volium Flexi 300 SC might be applied @ 0.05% at an interval of 7 days to the crop for three times.Bangladesh J. Agril. Res. 42(2): 373-378, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32822
      Issue No: Vol. 42, No. 2 (2017)
       
  • Genetic diversity in maize inbreds under excess soil moisture condition

    • Authors: M Hoque, F Akhter, M Kadir, S Akhter, S Ahmed
      Pages: 379 - 385
      Abstract: Genetic diversity study was done in 64 maize inbreds grown under excess soil moisture condition.The genotypes were grouped into eight clusters. It was observed that all intercluster distances were larger than all intracluster distances. Such results indicated that genotypes included within a cluster had less diversity among themselves but wider genetic diversity among the inbreds of different clusters. The highest inter cluster distance was observed between cluster IV & VII followed by IV & V , IV & VIII, II & VII and I & IV. The highest intra cluster distance was noticed in cluster V and the lowest was in cluster VII. The highest yield/plant, cob girth, number of rows/ear, number of grains/plant, SPAD value and number of nodes with brace roots were observed in cluster IV. The lowest mean value for yield/plant yield components and dwarf statured plant were observed in cluster VII. The plant height, ear height,days to 50% tasseling and silking, cob length, cob girth, 100 grain weight and SPAD value contributed considerably to total divergence. The genetically diverged genotypes in these distinct clusters could be used as parents in hybridization program for getting desirable hybrid(s).Bangladesh J. Agril. Res. 42(2): 379-385, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32823
      Issue No: Vol. 42, No. 2 (2017)
       
  • Growth rates of fruits cultivation in hilly areas of Bangladesh

    • Authors: MA Hossain, M Khatun, MA Matin, MF Dewan
      Pages: 387 - 392
      Abstract: not availableBangladesh J. Agril. Res. 42(2): 387-392, June 2017
      PubDate: 2017-06-07
      DOI: 10.3329/bjar.v42i2.32824
      Issue No: Vol. 42, No. 2 (2017)
       
 
 
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