Browsing by Author "Haque, M. Mahbubul"

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    Analysis of genetic polymorphisms in somaclonal variants of strawberry by RAPD markers
    (Bioscience Research, 2018) Bir, Md. Shahidul Haque; Haque, Md. Samiul; Haque, M. Mahbubul; Nath, Uzzal Kumar; Khatun, Roushan Ara; Ali, Mohammad; Soh, ,EunHee; Park, Kee Woong
    The understanding of the importance of dietary berries of maintaining human health has led to unrestrained increase of global strawberry crop production. The present work was conducted for molecular characterization and selection of genetically pure somaclonal variants of strawberry. For molecular characterization, RAPD (Random Amplified Polymorphic DNA) markers namely instead OPK 01, OPK-02, and OPK-03, showed good technical resolution and sufficient variations among the somaclonal variants. A total of 29 RAPD bands were scored, of which 27 (94.87%) by using these arbitrary primers were obtained by polymorphic amplification products. OPK-01 produced the number of polymorphic bands of 100-700 bp compared to OPK-02 and OPK-03. All the somaclonal variants produced polymorphic bands with three RAPD markers suggesting that the somaclonal variants were different from each other and genetic divergence were present among them. Thus, these markers could be used for comparison of the genetic relationships, determination of patterns of genetic variation, and measurement of genetic distance among the somaclonal variants of strawberry.
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    Impact and adaptation strategies of climate change in agricultural extension system in Bangladesh
    (Bioscience Research, 2018) Bir, Md. Shahidul Haque; Haider, M. Raisul; Haque, M. Mahbubul; Islam, Md. Shamimul; OH, Taek-Keun; Park, Kee Woong
    Facing the adverse effects of climate change is one of the biggest challenges for the country of Bangladesh. As a low lying downstream riparian country (70 percent of land area is 5 m or less above sea level), Bangladesh is one of the country’s most vulnerable to extreme climate events and the impact of climate change, from both flooding and sea water intrusion. Climate change is already affecting agricultural production with most alarming adverse effects in Bangladesh. Extreme weather conditions have changed the overall distribution of yearly rainfall, shifted cropping seasons, increased infestation of crops by pests and diseases, made the water-table decline in the Barind tract and some other areas. At the same time, demand for food is rapidly increasing with the population. Enhancing resilience is a major challenge not only for agricultural sustainability but also for the substantial non-farm rural economy. Hence, the development of climate resilient technology and adaptation strategies for food security, economic stability, and livelihood security of the people are crucial. In this article, an attempt was made to describe the threat of climate change, to highlight it’s the mitigation process, and to present practical implication for extension systems in facing the challenge of climate.