Search Results for : species
Identification of the grass family (Poaceae) by using the plant dna barcodes rbcl and matK
Due to phenotypic plasticity, with few distinguishable and many overlapping characters, grasses are very difficult to identify by morphological characters, The current research evaluated how standard plant barcode rbcl and matK can help in floristic evaluation of. grasses belonging to a not well studied flora in district Dera Ghazi Khan, Punjab, Pakistan. In this study, […]
Cyclomorphosis of fresh water rotifers from wetlands of contrasting ecological feature – seasonal analysis
Cyclomorphosis, an interesting biological phenomenon involves the alteration of different of morphs in time. Various eco-biological parameters including temperature, Dissolved Oxygen, pH, alkalinity, turbidity and nutrients (total phosphate phosphorus and total nitrogen) along with meteorological changes may have a role in inducing this survival strategy of phylum Rotifera. The primary aim of this study is […]
Assessment of Variance Indices of Araneid Fauna Grasped from Sugarcane Field by different trapping Methods at Faisalabad, Pakistan
Spiders play integral ecological favor for regulating integrated pest management population. Despites, there is restricted research data on the species richness, evenness and relative abundance in Faisalabad, Pakistan .Abundance of spiders were captured by pitfall, hand picking, foliage sampling and beat netting. We sampled seven families of araneid fauna and the most dominant families were […]
Effect of Rhizobium and Phosphate Solubilizing Bacteria at different levels of Phosphorus applied on Nodulation, Growth and Yield of Peas (Pisum Sativum)
Bacterial inoculation of Rhizobium species tend to improve the root architecture of legume crop through their potential of colonization and nitrogen fixing ability. Co-inoculation of Rhizobium and phosphate solubilizing bacteria (PSB) strain will further improve the nutrient availability to plant. This study was conducted to evaluate the response of peas to Rhizobium and PSB inoculation […]
Functional Feeding Groups among Aquatic insects of the East Kolkata Wetlands
Habitat complexity of wetlands supports diverse organisms where aquatic insects control the structure and dynamics of the food web. In the present study, biodiversity features of aquatic insects are dealt with reference to their taxonomic and functional diversity. Sampled specimen were assigned a habitat and ‘functional feeding group’ as proposed by Cummins and Klug (1979) […]
Abundance, length – weight relationships and Fulton’s condition factor of the freshwater cichlid Sarotherodon galilaeus (Pisces: Teleostei: Perciformes) from a sand-dragged man-made lake of Southern Benin, West Africa
Condition factors and growth trends indices such as allometry coefficients are decisive fisheries management tools that evaluate the well-being of fishes, their establishment and the quality of their habitat. We investigated the condition factors and length-weight relationships of a freshwater tilapine cichlid, Sarotherodon galilaeus, that has naturally colonized the artificial lake of Ahozon (South-Benin). S. […]
Effects of foliar application with salicylic acid on the biochemical parameters and redox status in two Canola plant varieties exposed to cold stress
Low temperature is an important environmental factor that limits the survival, productivity and geographical distribution of plants. Oil seeds are the second global food resources among which Brassica napus L. is the third annual oil seed in the world. In cold stress, some biochemical and physiological reactions occur in response to reactive oxygen species (ROS). […]
Natural Changes in Stand Structure in the Permanent plot of Hyrcanian forests (North of Iran)
This research was aimed to investigate natural changes in stand structure of Hyrcanian forests. Forest structure, proportion of dead wood, and proportion of tree species were studied in 2006 and 2012. Results of the inventory of total 2375 trees in 2012, showed 3 layers and uneven-aged structure in a forest type of Fagus orientalis-Carpinus betulus. […]
Productivity of some forage grasses under foliar sprinkler irrigation and foliar application of potassium nitrate under salinity stress
Field experiment was conducted during 2013/2014 and 2015 seasons was aimed to evaluate productivity of Rhodes and Blue panic grasses as well as Alfalfa under sprinkler irrigation with foliar application of potassium nitrate that enable plants to cope with water stress. Each two forage grasses beside alfalfa were conducted in separate experiments. Irrigation every 10 […]
Microhabitats of pholcid spiders (araneae: pholcidae) in Marilog District and Mount Hamiguitan, Davao, Philippines
Most spider groups use plants and ground as their microhabitats. In this study, microhabitats of pholcid spiders were investigated in Marilog and Mount Hamiguitan Wildlife Sanctuary in Davao, Philippines to determine the microhabitat utilization of leaf-dwelling and forest ground-dwelling pholcids. Based on quantitative analysis, pholcid spiders were documented mostly on plants. Vegetation-dwelling pholcids were recorded […]