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Inventory of Vegetation and Assessment of Carbon Storage Capacity towards a Low Carbon Campus: a Case Study of Universiti Tun Husein Onn Malaysia, Johor Malaysia

100%
Yunusa A., Linatoc A.
Path of Science
|
2018
|
vol. 4
|
issue 12
3001-3006
EN
Carbon dioxide, a vital greenhouse gas plays a key role in Earth's carbon cycle, a concentration above ambient temperature results in global warming. High CO2 emission in Universiti Tun Husein Onn Malaysia is due to an increase in a number of automobiles and other greenhouse gases released from building facilities and nearby industries. A study was carried out on 22 common trees planted within the campus on the estimated amount of CO2 sequestered. Estimation of carbon storage of trees was obtained through the assessments of standing biomass as well measurement of their photosynthetic capacity. Results indicated that Spathodea campanulata has the highest CO2 absorption (14.40 µmol/ m-2/s-1) followed by Acacia mangium (14.03 µmol/m-2/s-1), and Cananga odorata with (12.80 µmol m-2 s-1). Alstonia scholaris has the highest aboveground standing biomass accumulation of 106.94 kg, followed by Samanea saman (20.83 kg), and Acacia mangium (19.43 kg). The total biomass accumulated of all the tree species is 200.03 kg. Therefore, species of trees in Universiti Tun Husein Onn Malaysia main campus have the potential to absorb a significant amount of CO2 from the atmosphere thereby contributing to mitigating-the localized effects of global warming.
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The Use of Moringa Leaves Extract as a Plant Growth Hormone on Cowpea (Vigna Anguiculata)

81%
Maishanu H. M., Mainasara M. M., Yahaya S., Yunusa A.
Path of Science
|
2017
|
vol. 3
|
issue 12
3001-3006
EN
The use of Moringa oleifera leaves extract as plant growth hormone on cowpea plant (Vigna unguiculata) has been studied at the biological garden of Usmanu Danfodiyo university, Sokoto. An extract was made by grinding young moringa leaves and diluted with water at the ratio of 1:30 25 mls, three blocks were made labelled M, F and D, with three replications each, the extract prepared was applied on block ‘M’ only, while a small pinch of synthetic fertilizer (Urea) was applied in block ‘F’ and a control treatment was set up using distilled water, which applied to each plant in hill D. results indicates that in the 3rd week of observation the cowpea plants treated with moringa extract have the highest mean of stems, number of leaves and branches, length of leaves and branches, and thickness of stem. Then followed by those treated fertilizer mean and finally those treated with distilled water this result shows that moringa leaves extract has an improving effects on the growth of cowpea. Moringa leaf extract (MLE) is rich with numerous growth hormones, particularly zeatin that has been reported to increase the crops yield in the range of 10-45 %. Moringa leaf juice also contains micronutrients in sufficient quantities and suitable proportions that increase the growth, yield components and yield of a variety of crops.
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