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Volume 5 Issue 1

Current research status of allelopathy of plants grown in Bangladesh

Hisashi Kato-Noguchi

doi: 10.5455/faa.73168                                                 pp: 1 – 9


Allelopathy is probably involved in all aspects of natural ecosystems such as competition and succession of plant communities. Much of research in allelopathy mentioned that allelopathy can be used to control weeds and to reduce synthetic chemical input into agriculture practices. Several important papers describing allelopathy and allelopathic active substances in plants in Bangladesh have published in the last decay. Hundreds of plant species including about 150 rice cultivars in Bangladesh were evaluated their allelopathic potential. Dozens of allelopathic active substances including novel compounds were also isolated from those plant species. Concept of allelopathy is very important to developed sustainable agriculture setting in organic farming. Some of the information in allelopathy have the potential for use in understanding and controlling weeds in agriculture.

Keywords: Allelopathy, Bangladesh, Phytotoxicity, Weed management

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Ethylene sensitivity in orchid flowers and its control using 1-MCP: A review

Parviz Almasi, Mahmud Tengku Muda Mohamed

doi: 10.5455/faa.80674                                                 pp: xx – xx


Ethylene is produced as a gaseous growth regulator in all plants and their constructive parts such as roots, stems, leaves, flowers and fruits. It is considered as a multifunctional phytohormone that regulates both growth including flowering, fruit ripening, inhibition of root growth, and senescence such as senescence of leaves and flowers and etc. In addition, exposure to external ethylene is caused some changes that are often undesirable and harmful. Some flowers are more sensitive to others and when exposed to ethylene; their aging process is hastened. 1-MCP is an exogenous and endogenous ethylene action inhibitor, which binds to the ethylene receptors in the plants and prevents the ethylene-dependent reactions. The binding affinity of 1-MCP for the receptors is about 10 times more than ethylene. Hence, 1-MCP can be a potential candidate for controlling of ethylene injury in horticultural crops. This review integrates knowledge of ethylene biosenthesis in the
plants and also mode of action of 1-MCP in preventing of ethylene injury.

Keywords: Ethylene injury, ethylene biosynthesis, ethylene sensitivity, 1-MCP effects

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