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Articles by Mohammad Moneruzzaman Khandaker
Total Records ( 4 ) for Mohammad Moneruzzaman Khandaker
  Mohammed Saifuddin , Mohammad Moneruzzaman Khandaker , Md. Sarwar Jahan , Nashriyah Binti Mat and A.B.M. Sharif Hossain
  Growth regulator is an important factor to enlarge the flower size in the floriculture industry. Flower growers have a lot of interest in making flower enlargement and shorten longevity to harvest flower earlier and to make it marketable soon. Gibberellic Acid (GA3) and aluminium sulphate Al2(SO4)3 play significant roles in flower enlargement and development. Hibiscus sp. was used in this experiment. The branches were dripped with the respective chemical [GA3 and Al2(SO4)3 100ppm] at 3 days intervals for 3 weeks. It had been shown that the 100 ppm GA3 played major role in developing a bigger size of the flower, production of more leaves, shorter longevity of flower, quicker bloom and greater size and weight of the flower as compared to the Al2(SO4)3 and control. Chlorophyll content (represented by SPAD value) and fluorescence were higher in GA3 treated branch than in aluminium sulphate treated branch and control. The quantum yield (Fv/Fm) was maximal in GA3 treated branch. The aluminium sulphate treated branch also showed the similar results but the longevity of the flower had the longer duration in aluminium sulphate treated branch than in GA3 but shorter than control. The results showed that these two chemicals [GA3 and Al2(SO4)3 100ppm] using dripping technique instead of spray were effective for the enlargement of flower size and shorten the flower longevity with less chemical cost and quantity of chemicals without hazarding the environment instead of spray . In addition, it improved the weight and increased the blooming rate and could be acceptable to the flower growers easily and could be harvested for commercial purposes earlier.
  Ali Majrashi , Mohammad Moneruzzaman Khandaker , Baki Bin Bakar and Amru Nasrulhaq Boyce
  Scirpus grossus L. is a principal rhizomatous weed in the rice fields, drainage and irrigation canals, river banks, abandoned rice fields and wasteland in Malaysia. This study provides evidences that plants of S. grossus have a remarkable ability to alter their development in response water depth regimes. This phenotypic plasticity allows them to continually adapt to their local environment, a necessity for plants as sessile organisms. The results of this current study showed that devoid of fertilizer application (F0) and not inundated, S. grossus plants with mean monthly population counts up to 16 weeks, taken at 4-weekly intervals were as follows: 61.33, 67.33, 75.33 and 117.00 plants m–2. With fertilizer applications, the parallel counts for F2 (64.67, 71.00, 80.33 and 34.33 plants m–2), F3 (65.33, 72.67, 68.33 and 32.00 plants m–2), F4 (71.67, 72.00, 71.67, 6.33 plants m–2), F5 (79.33, 74.67, 52.00 and 0.00 plants m–2), denoting increased mortality of ramets with increased fertilizer applications. Ramet mortality of S. grossus increased with the greater depths of the water level and with increasing NPK concentrations. It was also observed that population number of ramets decreased with increased depths of inundation, irrespective of fertilizer regimes. In relation to plant height, recorded results showed that plant height was highest in the 10 cm water depth treatment followed by 20, 5 and 0 cm water depth treatments, respectively. It can be concluded that depth of inundation and fertilizer regimes have significant effects on aerial growth and ramets mortality of Scirpus grossus.
  Nik Nurnaeimah Nik Muhammad Nasir , Mohammad Moneruzzaman Khandaker and Nashriyah Mat
  There are many medicinal plants that have been used since folk ages. These plants have been recognized to have pharmaceutical properties and beneficial impact on health. This study discusses the use of ten medicinal plants in the traditional medicinal system of Malaysia and related scientific on their antioxidant activity, which demonstrate their pharmaceutical properties. The plants viewed are Andrographis paniculata, Cosmos caudatus, Eurycoma longifolia, Ficus deltoidea, Gynura procumbens, Labisia pumila, Orthosiphon stamineus, Phyllanthus niruri, Piper betle and Uncaria gambir. All the plants mentioned in this study have therapeutic properties such as antioxidation, antidiabetics, antiinflammation, which explains and validates their uses in traditional and modern medicine.
  Siti Zuriani Ismail , Mohammad Moneruzzaman Khandaker , Nashriyah Mat and Amru Nasrulhaq Boyce
  There is increasing concern about the effects of hydrogen peroxide (H2O2) on plant growth and development as well as fruit quality, worldwide. Hydrogen peroxide is produced predominantly in plant cells during photosynthesis and photorespiration and also in respiration processes. It is most stable of so-called Reactive Oxygen Species (ROS) and therefore, plays crucial role as signaling molecule in various physiological process. Increment of intra- and intercellular levels of H2O2 give effect on growth, development and quality of fruits with the optimum concentration of H2O2 application. In this study the effects of H2O2 on growth, development and quality of importance fruit production were discussed. The past research was also discussed about the effects of H2O2 on germination of seedling until maturation, flowering and fruiting stage and fruit quality during pre-harvest and postharvest storage behavior.
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