EFFECTS OF LOW AND HIGH TEMPERATURE ON THE EGGS OF Aedes aegypti (L.)( Diptera : Culicidae ) AND THE SUBSEQUENT STAGES DEVELOPED THEREFROM. Sharmin Tarana and Professor Khan Humayun Reza

BJPST: 14(1): 015-019 [Jan, 2016] ISSN: 2305-1809 (Online version)
ABSTRACT
A study was undertaken to observe the effect of low and high temperatures on the eggs of Ae. aegypti and the different stages developed from there after hatching. The low and high temperatures for the specified periods affected the eggs of Ae. aegypti and the stages developed there from after hatching. The highest number of hatching of the eggs of Ae.aegypti was observed in control (90.67%) at 20°C. There was significant difference in the hatching efficiency of eggs of Ae. aegypti at control, 0.5 hour, 2 hour,  5 hour and 24 hour. There were insignificant differences in the duration of larval periods in treatments and control. Insignificant difference was also observed in the pupal duration in control and treatments. Although there were no significant differences among the treatments, length of the 2nd, 3rd and 4th instars larvae were higher in control than the larvae treated with different temperatures. The length of the pupae in control was higher than the different temperature treatments. Low and high temperatures showed no effect on the body length (mm) of adult male and female. Adults emerged from the eggs treated with different temperatures and exposed for different interval showed that egg laying decreased in low and high temperature than the control.

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EFFECTS OF RHIZOBIUM, MOLYBDENUM, BORON AND LIME ON CHICKPEA (var. BARI Chola-5). Uddin AKMS, Biswas BK, Shawkhatuzzaman M, Chowdhury MMH, Yasmin N

BJPST: 14(1): 011-014 [Jan, 2016       ISSN: 2305-1809 (Online version)
ABSTRACT
An experiment was conducted at a farmer’s field at Thakurgaon district during 2014 to observe the effect of Rhizobium, molybdenum, boron and lime on chickpea (var. BARI Chola-5) and to develop an application method suitable for resource-poor farmers whether Mo and Rhizobium could be added in the seed priming process. The treatments were T1: control TSP: (20 kg P ha-1), Borax: (1 kg B ha-1) and seed priming with Sodium molybdate: (1.5 g kg-1 seed) and Rhizobium inoculum: (4 g kg-1 seed), T2: control with seed priming in water, not Mo or Rhizobium, T3: control with no B application and T4: Control + 1.5 ton dolo lime ha-1 CaCO3 + MgCO3. The highest plant height (17.1 cm), number of nodules (3.67 plant-1), number of pods (43 plant-1) and seed yield (1.28 t ha-1) were observed with the treatment containing all i.e. TSP, boron, lime, sodium molybdate and Rhizobium. Seed priming with water only (along with TSP + borax) also showed better performances in producing plant height and number of plants per plant. This trial confirmed that this was as effective as soil application of Mo + Rhizobium giving significant yield response. Economic evaluation suggested that the treatment consisting lime was suitable for obtaining higher rate of return. The results further showed that liming is necessary for chickpea cultivation in the Ruhea Soil Series of Thakurgaon district.

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PROSPECTS AND CHALLENGES OF BACKYARD CATTLE PRODUCTION IN THE VILLAGES OF SYLHET DISTRICT IN BANGLADESH. Islam Farukul, Hossain Md. Shamsul, Choudhury Md. Panir, Hossain Mohammad Hemayet and Rashid Md. Harun-Or

BJPST:14(1): 007-010 [Jan, 2016]    ISSN: 2305-1809 (Online version)
ABSTRACT
A total of 68 livestock keeping households randomly selected the villages of Sylhet district in Bangladesh to explore knowledge about prospects and challenges of backyard cattle production on November-December, 2015. Backyard cattle were very poor milk producer (1.77±0.13 liter/day/cow) and rice straw, grass, rice gruel, broken rice and broken pulse were the ingredients of feed for the cattle. Majority (67.60%) of the households did not use vaccine and many households used anthelmintic for de-worming their cattle. Most of the respondents did not cultivate grass. Most of the respondents used village breeding bulls (75%) for insemination of their cattle but a few of them did use own breeding bull, though some farmers used artificial insemination system to inseminate their cows. Deshi cattle were popular to the villagers and hopefully agriculture was the main way of living in Sylhet district. Outstanding opportunity of backyard cattle production in the study site were for high demand of milk and milk products, participatory husbandry system and high demand and high price of beef. But  some challenges were also there, like:  lack of grazing land, high feed cost, vaccination worker not available, lower rate of milk price and lack of capital or loan in the study site for backyard cattle production. Backyard cattle developments initiatives considering the mentioned prospects and challenges might help to increase cattle production at the rural villages in Sylhet district of Bangladesh.

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VEGETABLE MARKETING SYSTEM AND ROLES OF MIDDLEMEN IN BANGLADESH. Md. Rashidul Hasan and Hu Bai

BJPST: 14(1): 001-006 [Jan, 2016]    ISSN: 2305-1809 (Online version)    

ABSTRACT
This study attempts to identify vegetable marketing channels in three districts in Bangladesh. For investigating marketing channels, identify market actors, their function, corresponding marketing cost and margin, and major business obstacles were also highlighted. Data were collected primary source from 354 farmers and 129 middlemen by using pretested semi-structured questionnaire in 2014. The results showed that farmers, Faria, Bepari, Aratdar and retailers were the major markets actors in the study areas. Middlemen were followed different payment methods, price fixation procedures and they graded and stored their vegetables for selling timely. Most of the intermediaries buy vegetables from farmhouses and village markets and sell mostly in the urban markets. Among the market intermediaries, net margin was highest for Bepari and lowest for retailer. Net margin and purchase price percentage was highest for retailer and lowest for Bepari. Middlemen used different sources of market information in their marketing activities and mobile phone is very popular for collecting price information. Both farmers and middlemen are in the shortage of capital. So Government, NGOs and other institutional credit should be available.


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