302 results for “leaf”

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Research ArticleOpen accessIn the abstractTree Based Test Case Generation and Cost Calculation Strategy for Uniform Parametric Pairwise TestingMohammad F.J. Klaib, Sangeetha Muthuraman, Noraziah Ahmad, Roslina SidekProblem statement: Although it is very important to test any system extensively it is usually too expensive to do so owing to the cost and the resources that are involved in it. Software testing is a very important phase of software development to ensure that the developed system is reliable. Some systematic approach for testing is essential to test any … …Journal of Computer Science, Vol. 6, Issue 5 · 31 May 2010 · 7,342 accessesView PDF Cite

Research ArticleOpen accessIn the abstractRisk Assessment of Tobacco Types and Oral CancerAbdoul Hossain Madani, Abdolreza Sotoodeh Jahromi, Madhurima Dikshit, Debanshu BhaduriProblem statement: Oral cancer is one of the most common life threatening cancers all over the world, in particular Asian countries and tobacco is considered to be the most potent risk factor for oral cancer. This study was conducted to investigate the risk factors for oral cancer among the subjects from the studied area. Approach: A case-control study of 350 … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 1 · 31 Mar 2010 · 10,080 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Potassium Levels on Antioxidant Enzymes and Malondialdehyde Content under Drought Stress in Sunflower (Helianthus annuus L.)H. Soleimanzadeh, D. Habibi, M.R. Ardakani et al.Problem Statement: Drought stress as a major adverse factor can lower leaf water potential, leading to reduced turgor and some other responses and ultimately lower crop productivity in arid and semi arid zones. Sunflower is one of the main oil seed crops in Iran, where drought stress is the most limiting factor. Drought stress tolerance requires the activation of complex … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 10,779 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMorphological Characteristics of P. xylostella Granulovirus and Effects on Its Larval Host Diamondback Moth Plutella xylostella L. (Lepidoptera, Plutellidae)A. Dezianian, A. S. Sajap, W. H. Lau et al.Problem Statement: Diamondback moth, Plutella xylostella L. (Lepidoptera, Plutellidae) is the most destructive insect pest of cruciferous plants throughout the world which become resistant to wide range of chemical pesticides. PxGV is known as an effective factor on diamondback moth larval mortality. Approach: Some morphological characteristics, viral DNA isolation and Restriction Endonuclease (REN) analysis of P. xylostella granulovirus and its … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 10,157 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMolecular Characterization of a Phytoplasma Associated with Coconut Yellow Decline (CYD) in MalaysiaN. Nejat, K. Sijam, S. N.A. Abdullah et al.Problem statement: Molecular methods have been used to detect phytoplasma in Malayan Red Dwarf (MRD) ecotype of coconut for the first time in Malaysia. Detect phytoplasma from coconut showing yellowing symptoms by nested PCR and Classify phytoplasma associated with disease of coconut palms, based on analysis of 16S rRNA gene operon sequences and virtual RFLP. Approach: Twenty MRD symptomatic palms … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,919 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Study on Potentiality of Carbon Storage and CO2 Uptake in the Biomass and Soil of Coppice StandA. Khademi, S. Babaei, A. MatajiProblem statement: Enhancing carbon storage in terrestrial ecosystems, especially in the forests, is a key factor in maintaining the atmosphere's carbon balance. With regard to the importance of forest in carbon sequestration, this study attempted to investigate the carbon storage potential and CO2 uptake in oak coppice stand. Approach: After combining slope, aspect and hypsometric maps, the number of land … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,921 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Quick Method for Metarhizium anisopliae Isolation from Cultural SoilsM. A. Tajick Ghanbary, A. Asgharzadeh, A. R. Hadizadeh, M. Mohammadi SharifProblem statement: Fungi are one of the most active members in biological community of cultural soils. Many saprophyte and facultative parasitic fungi live in soil. Metarhizium anisopliae, one of the most famous soil inhabitant entomopathogens has a virulence potential on plant and animal pests. Approach: Introducing a new method for its isolation from soil was an applied method to find … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 2 · 30 Jun 2009 · 9,319 accessesView PDF Cite

Research ArticleOpen accessIn the abstractChemical and Physical Characteristics of Cocopeat-Based Media Mixtures and Their Effects on the Growth and Development of Celosia cristataYahya Awang, Anieza Shazmi Shaharom, Rosli B. Mohamad, Ahmad SelamatProblem statement: Cocopeat is considered as a good growing media component with acceptable pH, electrical conductivity and other chemical attributes but it has been recognized to have high water holding capacity which causes poor air-water relationship, leading to low aeration within the medium, thus affecting the oxygen diffusion to the roots. Incorporation of coarser materials into cocopeat could improve the … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 19,001 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHigh Quality Komatsuna (Brassica rapa L. nothovar) Production by Using Silicate Minerals Treated Nutrient SolutionSheheli Islam, Kumagai Kazunori, Noriko Takeda, Katsumi IshikawaProblem statement: Good water quality not only produces good crop yield, but also maintains environmental quality and so with plant, animal and human health. Therefore, protecting the quality of water by using non chemical materials is an emerging issue to be solved. Bakuhan seki having additional negative charge were found to have the capacity of improving condition of water while … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 8,637 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBiological Control of Rice Blast (Magnaporthe oryzae) by use of Streptomyces sindeneusis isolate 263 in GreenhouseM. Ebrahimi Zarandi, G.H. Shahidi Bonjar, F. Padasht Dehkaei et al.Soil Actinomycetes particularly Streptomyces spp. have antagonistic activity against wide range of plant pathogens. In the recent decades they have attracted high interests as biocontrol agents. In search for finding such principles, in vitro suppression of Magnaporthe oryzae the causal agent of rice blast disease was studied by use of Streptomyces sindeneusis isolate 263 in greenhouse. Spray of rice seedling-leaves … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 11,492 accessesView PDF Cite