Browsing by Author "Mutalib, Sahilah Abd"

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    Cellulolytic Bacterial Consortium Accelerate Rice Straw Decomposition
    (wahyu sari yeni, 2018-08-23) Linda, Tetty Marta; Surif, Salmijah; Mutalib, Sahilah Abd
    Rice is the staple food in Malaysia, Indonesia, Thailand, India and many other Asian countries and in Malaysia, nearly 0.6 billion ha of land is being used for growing rice (Malaysian Agricultural Research and Development Institute 2008). Rice cultivation produces large quantities of straw waste, ranging from about 2 to 9 tons/ha globally. In many countries including Malaysia, rice straw is generally burnt directly on the fields causing greenhouse emissions (Badrinath et al. 2006) and can exacerbate global warming problems. Rice straw consists mainly of cellulose and hemicelluloses encrusted in lignin, and contain only small amounts of protein. The higher content of these cellulosic materials in the rice straw compared to other protein-rich grains such as wheat and barley make rice straw more resistant to microbial decomposition (Parr et al. 1992). Decomposed rice straw is a rich source of organic material that can be utilized by the plants; particularly when the C:N ratio is enriched by the activities of the soil bacteria, thus increasing the supply of nutrients and maintaining soil fertility. This paper describes the decomposition of rice straw using cellulolytic bacterial consortium (CBC) which has been isolated from a rice growing area in Tanjung Karang Selangor
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    EVALUATION OF CONSORTIUM CELLULOLYTIC MICROBES IN DEGRADATION OF RICE STRAW TO IMPROVE PLANT GROWTH
    (2018-08-24) Linda, Tetty Marta; Mutalib, Sahilah Abd; Omar, Othman; Surif, Salmijah
    A consortium of cellulolytic microbes (CCM) isolated from paddy fields were developed to degrade rice straw in the field. Under green house conditions, paddy plants grown in soil incorporated with the consortium cellulolytic microbes and straw for eight weeks showed significant (P ≤ 0.05) increases in total dry weight, biomass, stem length and seed weight compared to controls, suggesting the CCM to be effective in degrading the paddy straw and improving paddy growth. Laboratory phytotoxicity study showed a germination index of 116.7% indicating the CCM to be harmless to plants and suggesting it to be phytonutrient-phytostimulant