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- Maize or Corn (Zea mays L.) is the most important cereal in the world after wheat and rice. It possesses high nutritive value and is important as a coarse grain. In Sri Lanka, this crop has cultivated, around 30,000ha and local consumption is around 200,000mt annually. Further, Maize is an easily grown crop and the cultivation has been popular among farmers as a cost effective crop with limited fertilizers. This Crop earns a reasonable foreign exchange as it is used as infant foods. Maize has a higher leafy mass and higher vegetative growth within shorter period of time than the other monoculture crops. Therefore, like for many other cereal crops, it is worthwhile in studying the environmental impacts due to this plant. Many researchers have shown that soil is the most affected environment due to monoculture plants. But no proper studies on soil quality changes due to this maize crop have been conducted in Sri Lanka
Edible insects are important dietary component that consumed as food in many developing countries. The edible insects are the rich sources of high quality proteins, fat, vitamins and minerals. Different species of edible insects contribute to variation in nutritional value which depends on the host plant, season and geographic location. The present study was aimed to assess the amount of lipid, cholesterol and triglyceride of Oecophylla smaragdina, Fabricius (the weaver ant) in different developmental stages, castes and in different seasons of the year collected from Upper Assam, North East India. Significant differences (p<0.05) were observed among all the groups and between same caste of queen and worker. The total lipid content in this particular species Oecophylla smaragdina of present study was from10-25% in queen larva, 10-23% in queen pupa and 10- 20% in queen adult in different seasons of the year.
Laboratory investigations were conducted to identify suitable form and to determine the suitable dose of application of osmolytes for liquid inoculant formulations of plant growth promoting rhizobacteria (PGPR) viz., Azotobacter sp., Azospirillum sp., Acinetobacter sp., Bacillus sp. and Pseudomonas sp. Osmolytes such as four grades of polyvinyl pyrrollidone (PVP), four grades of polyethylene glycol (PEG), and glycerol were added to broth at three different concentrations (0.5%, 1.0% and 2.0%). Supplementing the specific media with 2 % Glycerol for Azotobacter sp., 2 % PVP K-15 for Bacillus sp., 1 % PEG 400 for Azospirillum sp., 2 % PVP K-15 for Pseudomonas sp., and 2 % PEG 4000 for Acinetobacter sp. resulted in the highest population densities.
A field study was conducted at the Teaching and Research Farm, University of Agriculture, Makurdi, Nigeria in 2008 and 2009 cropping seasons. The objectives were to identify important determiners of yield characters and to determine the correlations between growth characters viz: number of leaves per plant, length of internodes per plant, number of internodes per plant, leaf area index, net assimilation rate, absolute growth rate, plant height; and yield characters namely: panicles per plant, capsules per plant, capsules per panicle, seeds per plant, dry weight of harvestable material, total dry weight per plant, harvest index, seed yield, 100 seed weight and oil yield at 4, 8, 12, 16, 20, 24 and 28 weeks after sowing(WAS).
Allelopathy refers to the chemical inhibition of growth of one species by another. With the objectives of understanding allelopathic effects of sixty seven traditional rice cultivars, a field experiment and laboratory experiments were carried out in 2011 Yala season at Faculty of Agriculture, University of Ruhuna, Mapalana, Sri Lanka. Rice cultivars were transplanted according to the completely randomized block design with four replicates. Each replicate consisted of three rows of rice plants and data were collected from the middle row. After three months of transplanting, plant height (cm) and number of tillers/plant, were evaluated in traditional rice cultivars and total dry matter weight of weeds in 0.093 m 2 (1ft2) area encircled by the rice plant were evaluated in three replicates. According to the statistical analysis there were significant differences in plant height and tiller number/plant in traditional rice cultivars.
The plant seeds of extraordinary greenery have a tendency through stockevery evening. The entire marketplace is immediately following them, just to save them from extinction. The moment the event is comparable to this, then the entire world is intending to help save the flowers from the abolition. But also the seed products of the people garden plants are becoming out from the investment everytime, not because of the necessitate, but because of their unavailability. Under these sort of circumstance, there are simply a couple groups that came out forward to retain the shape. They already have just lately opened their on-line products also, for facilitating the public of several nations around the world to order the plant seeds and place them in their backyard garden.
Plant growth regulators are expected to witness significant growth in demand owing to its use in cotton metabolism in light of the growing cotton textile industry. Download PDF Brochure http://bit.ly/1w3mQto Plant growth regulators are plant hormones and non-nutrient chemicals that enhances the growth and development of plants. Various plant growth regulators such as cytokinins, auxins, and mepiquat chloride are used in certain agriculture and pharmaceutical applications.
Antibacterial activities of aqueous and ethanolic extracts of Allium cepa (onion bulb) were investigated against Escherichia coli, Salmonella spp., Streptococcus pneumoniae, Shigella spp., and Staphylococcus aureus with the minimum inhibitory concentration (MIC) of 0.2 g/ml by agar dilution technique. The antibacterial potency of the extract as evaluated by broth dilution technique, showed diameter of inhibition zone of 17.08 mm, 0.00 mm, 19.00, 19.00 and 15.0 mm for E. coli, Salmonella spp., S. pneumoniae, Shigella spp., and Staph. aureus respectively at a concentration of 0.2 mg/ml for aqueous extract and diameter of inhibition zone of 23.0 mm, 20.00 mm, 20.00 mm, 21.00 mm and 21.00 mm for E. coli, Salmonella spp., S. pneumoniae, Shigella spp., and Staph. aureus respectively at a concentration of 0.2 mg/ml for ethanolic extract. The result obtained using the ethanol and hot water extract of the plant showed that the local use of medical plant are based on ...
The cost of concrete is governed by the cost of material, plant and labour. The cost of cement is several times higher than the aggregate. Therefore, the objective is to produce the concrete mix as lean as possible and should be economical. That is why designed mixes are preferred to nominal mix. Generally in nominal mixes, cement in higher quantity is used than the designed mixes. Since in production of concrete, the cost of cement is governing factor, therefore, to minimize the cost of concrete, it is essential that concrete mixes must be designed.
The present study deals with the phytochemical examination and therapeutic importance of Pergularia daemia .The plant Pergularia daemia has been traditionally used as laxative ,antipyretic ,expectorant and also used to treat infantile diarrhea and malarial fever.This study involves the preliminary phytochemical screening followed by antibactertial activity. The phytochemicals such as Tannins ,Saponins ,Flavonoids ,Quinones, Phenols and Alkaloids,Steroids,Glycosides were present in the hydroalcohol of Pergularia daemia leaf extracts was higher amount than the other solvent extracts.In the Antimicrobial activity both gram