International Letters of Natural Sciences

Description: The 85th issue of the International Letters of Natural Sciences is devoted to studying the role of tithonia manure on microbial population density and different okra varieties under two soil conditions as well as analysis of the performance of test crosses of maise variety Sarhad White with Jalal and Kiramat for morphological traits.

Description:

The 84th volume of the International Letters of Natural Sciences contains articles that present the research results on the harmful effect of low doses of a widely used pesticide imidacloprid on the earthworm as an important component of soil biota and the impact of different irrigation levels and spraying with agrispon and their interaction on the productivity of garlic plants.

Description: This volume of the International Letters of Natural Sciences presents to readers the latest investigations concerned with the improving soil salinity tolerance by potassium humate fertilizer in common bean plants; studying the effect of adding nitrogen and phosphorus fertilizers either as minerals (different rates) or biofertilizers as soil application on the chemical composition of roselle plants; the analysis of physiology of nutrition of juveniles individuals of pumpkinseed in Ukrainian reservoirs; effect of Neonauclea formicaria (Rubiaceae) leaf extract on the angiogenesis activity in the chorioallantoic membrane of duck embryos; evaluation of the disinfection efficiency of a constructed wetland system integrated with nanocomposite clay filter for sewage treatment; determination the general tendencies of heavy metals content and distribution in organs and tissues of some age groups of hybrid silver x bighead carp from experimental ponds, which were used for the analysis of anthropogenic pressure in areas with a high urbanisation level.

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The 82nd volume of the International Letters of Natural Sciences presents the research results on the relationship between nematode composition and physicochemical properties of soil. There was shown the results of seasonal and annual probabilistic forecasting of water levels in the Ladoga lake. This volume also analyzed the experience of using constructed wetland systems for pollutant removal from sewage in a tropical climate; was evaluated the role of spatial variables, soil properties, and overstorey structure in the spatial variation of the herb-layer community in a riparian mixed forest, and described the results of the phenological observation of avian frugivory biodiversity in the Eastern Ghats, Tamilnadu, India.

Description: The 81st volume of the International Letters of Natural Sciences presents the latest research results on the diversity and abundance of butterfly (Lepidoptera) fauna in the town's condition. There was investigated the metabolic changes in phenolic compounds in buds during and after dormancy releasing in early and late apple varieties. This volume also presented an analysis of the economics and toxicological aspects of the application of pesticides for sustainable chickpea production and studied the influence of the micro-climate conditions and affected the shade regimes on the physiological processes of growing cocoa pods.

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This volume of the International Letters of Natural Sciences presents to readers the latest investigations concerned with to survey the levels and distributions of organochlorine pesticides in water, sediment, and fish samples from the Niger Delta of Nigeria; evaluation of the genetic diversity of 35 medical plant Huperzia samples collected from the different geographical areas in Vietnam; studying the effect of the combined usage of farmyard manure and urea for better to produce higher economical yield along with improved soil properties; provides the baseline information on reproductive parameters for the fisher management and conservation of important fishery resource in Lake Mainit; evaluation of the bivalve population dynamics for the understanding of ways for supporting, exploitation activities, and management of aquaculture in coastal waters of Hinatuan; the determination of antioxidant and antimicrobial capacities of farnesol sourced from E. crispa leaf.

Description:

This volume of the International Letters of Natural Sciences presents to readers the latest research in antioxidant activity of Nepeta nuda and phenolic content; ethanol and water extracts of Nepeta nuda subsp. albiflora were prepared and used for biochemical analyses. Also, readers can find research includes improved soil fertility by Combination of inorganic and organic fertilisers from foliar Application of Banana Pseudostem Sap, which will enhance crop productivity while reducing environmental degradation. Results of studies on the content of artificial (137^Cs, 90^Sr) and natural radionuclides (226^Ra, 232^Th, 40^K) in tissues and organs of various individuals of pumpkinseed Lepomis gibbosus (Linnaeus, 1758) from the Zaporizhzhia (Dnipro) reservoir. Report of amino acids composition of Thryonomys swingerianus (of Liver, Heart and Kidneys). Ivestigation of evaluated levels of heavy metals namely cadmium, lead, and mercury from key aquatic fauna and sediments from seven strategic sections of the Lake Mainit in the Philippines.

Description: This volume of the International Letters of Natural Sciences shows the latest findings concerned with the identifying and mapping groundwater potential zones in agricultural intensive Sarada river basin using remote sensing and GIS technology; assessment of the effect of basaltic tuff on monocultures of cyanobacteria during the purifying of water; assessment of food habits and reproductive characteristics of economically important fish species in the Tono Reservoir of Northern Ghana; examination of the effect of dominant tree species in the central parts of Ethiopia on soil characteristics and its microbial biomass.

Description: This volume of the International Letters of Natural Sciences presents to readers the latest investigations concerned with the initial assessment of the bacterial and fungal community structures associated with mungbean under natural field conditions; promotion of the river fish culture practices for the fish, which in turn could help reduce the current pressures on marine capture fisheries in Sierra Leone; changes in phenolic constituents and antioxidant activity of between tolerant and susceptible rice varieties in chilling stress condition that reduces the harmful effects on rice seedlings occurred in low temperature; identification of the species diversity of macroinvertebrate in the mangrove forest, Nypa palm forest, mixed forest, and determination the impact of mangrove and Nypa palm on macroinvertebrate community.