03.00.00 Biological sciences
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Description
In this article the influence of four nanometal oxides on tadpoles of lake frog in pure water and in low concentrations of sawage of sugar factory is considered. It is revealed the protecting action of three nanometals, characterized by an increase in growth rates and decrease in death rate of tadpoles in sawage of sugar factories
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EFFECT OF GOLD NANOPARTICLES ON SEEDS GERMINATION OF WINTER BARLEY
DescriptionThe article presents experimental data on the research of gold nanoparticles (GNPs) with mean diameter 15 nm and 50 nm effect on seeds germination and growth of 3-day-old etiolated coleoptiles and roots. Compared with distilled water (control) initial colloidal solution of 15 nm and 50 nm GNPs (57 µg/ml) had no significant impact on seeds germination and growth of coleoptiles and roots. However, in both cases a weak tendency to stimulation of the coleoptile growth and root growth inhibition was observed. Reduction of 15 nm GNPs concentration down to 10 µg/ml and 1 µg/ml had not effect on the growth of the seedlings, but stimulated seed germination up to twofold. Similar concentrations of 50 nm GNPs exerted the stimulating effect on seed germination (twofold) and the growth of root and coleoptiles. Seedlings grew especially intensive in colloidal GNPs solution with Au concentration of 10 µg/ml. Temperature rise of 2 degrees (from 25°C to 27°C) resulted in growth increase of control 3-day-old seedlings and opposite effect of 50 nm GNPs: coleoptiles and roots growth fell behind control seedlings growth by 16-17%. However, on the 4th day, the relative growth slowdown of control seedlings occurred at 27°C and growth stimulation effect under the influence of 50 nm GNPs appeared again. Over time, the stimulating effect of 50 nm GNPs decreased: at the end of October it weakened, and in November – beginning of December, it was no observed for the roots, and there was a decline in coleoptiles growth. However, in all cases the effect of stimulation of seeds germination persisted under the influence of 50 nm GNPs, weakening by December. We hypothesize the molecular mechanisms of biological action of GNPs
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Description
The work presents the results of studies on the influence of the foliar spraying of white grapes of the technical sort of ‘Chardonnay’ with new water-soluble fertilizers: Nutrivant plus vinograd, Kelik potassiumsilicon, Atlanta plus and microelements in chelated form - Kelkat boron, Kelkat manganese and Kelkat zinc, on its agro biological and technological indicators. The field experiment was performed in the AF Close Joint-Stock company "Primorsk" in Temryuk District. The diagram of the experiment consisted of five options: without treatment (control); Nutrivant plus vinograd - 1 kg / ha; Kelik potassium silicon - 3 kg / ha; Atlanta plus - 2 kg / ha; a set of microelements - Kelkat boron, manganese and Kelkat Kelkat zinc 660 g / ha each. It was established that the foliar spraying with these fertilizers contributes to a more intensive accumulation of sugar in the juice of berries and to the acceleration of the harvest ageing. Furthermore, the productiveness of shoots has been increased, as it is shown in a greater number of inflorescences, and sometimes, the average bunch weight increases. All this contributes to a significant increase in a yield from a bush and to a crop yield. The highest content of chlorophyll (a + b), carotinoid and the amount of pigment were observed in cases of "Atlant plus" and "Kelik potassium-silicon," where the highest sugar was contained in the berries. Foliar spraying of grapes with the complex of microelements and also Nutrivant plus and Atlanta plus contributed to the improving of the quality of wine, as evidenced by the data of the tasting degustation. The highest mark was provided by the foliar spraying of bushes using the complex of microelements
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EFFECT OF NON-TRADITIONAL MELIORANTS ON THE MICROBIOLOGICAL ACTIVITY OF SOIL AND GROWTH OF PLANTS
DescriptionThe effect of the new meliorants on the qualitative and quantitative composition of the microflora of loamy sand soil and the growth of pine seedlings is presented. The activization of microbiological processes and growth of plants on the meliorated plots is revealed
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INFLUENCE OF THE NEW RACES OF YEASTS ON THE CHEMICAL COMPOSITION OF THE WHITE TABLE FAULTS
DescriptionThe influence is shown for the race of yeasts to the dynamics of the fermentation of grape must, the composition of organic acids and aromatic of components. The races, which ensure obtaining high-quality winemakings material are presented
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THE EFFECT OF TREATMENT OF GRAPE CUTTINGS WITH ELECTROMAGNETIC FIELD ON THEIR REGENERATIVE SKILLS
DescriptionThe article presents the results of studies on the effect of processing varieties of grape cuttings of Pervenets Magaracha using alternating electromagnetic field on their regenerative skills. Processing the cuttings with alternating electromagnetic field was carried out using an induction coil for 5,10,15 and 20 min. As a control option, the cuttings were soaked in water, as a standard option – the cuttings were soaked for 24 hours in a 0.01% solution of IAA. Rooting was performed in vessels with water at optimum temperature conditions. It was found, that the use of IAA for the first time led to the inhibition of blooming buds. EMF treatment of cuttings with each exposure has a stimulating effect on this indicator. Application of EMF exposures in the 5 to 15 minutes resulted in a significant increase in the length of shoots, compared to the control variant and the option to IAA. Processing cuttings with EMF exposures at 5,15 and 20 minutes resulted in a significant increase in rooting compared with the control. Maximum rooting was obtained at an exposure of 15 minutes. It was the same as in the version with a standard rooting stimulant - IAA. However, the highest yield of cuttings with 3 roots and ended up in a version with a 20-minute exposure. Maximum number was noted on the heel of the roots cuttings option with IAA. Treatment of cuttings with EMF exposure 5, 10 and 20 minutes, has also led to a significant increasing of this indicator, respectively, 45.5; 22.7 and 79.5%. The maximum increase in the number of roots was obtained in the variant with exposure 20 minutes. Thus, this option should be considered as the best one
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Description
The article studies the impact of waste and ash from the elevators of their burning on the microflora of rhizoplane, rhizosphere and phylloplane of winter wheat grown on leached black soil
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Description
The article studies the influence of polymeric in the form of formers and growth regulators on the growth and development of rice plants when grown in saline conditions. We controlled the effect of salinity on grows regulators and vigor, seed germination, root and shoot weight, the content of photosynthetic pigments parameters, induction curves of delayed fluorescence, the indicators of structure of harvest, grain yield. It was found, that pre-sowing seed soaking in solutions of polymer grows regulators has a stimulating effect on the growth and development of rice plants in the early stages: we significantly increased germination and emergence, dry weight of root and shoot compared to control. At different stages of ontogeny rice, the absolute content of pigments in the leaves and the relationship between the individual variants change. The absolute content of pigments in leaves and their relationship between experiences at different stages of ontogeny change. In the period of intensive vegetative growth from seedling stage the content of total chlorophyll is maximum, and by the end of the growing season it decreases. It can be assumed that the salinity of the substrate significantly reduces the productivity of photosynthesis in young plants, possibly due to imbalance of ions in the cell, the older it gets – the weaker the phenomenon is and even becomes reversed. The second maximum IR ZF increases during the growing season from germination to flowering, then decreases to the beginning of ripening in all embodiments. The same dynamics is characteristic of the magnitude of the proton gradient in the membranes of chloroplasts tylakoids. Salt protection effect of growth regulators on grain yield is significant on both backgrounds of mineral nutrition
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EFFECT OF SOIL AND ECOLOGICAL CONDITIONS ON THE GROWTH OF SEEDLINGS OF PINUS SYLVESTRIS
DescriptionThe influence of agrochemical and physical properties of a soil on the growth of the seedlings of Pinus sylvestris in the forest nurseries in Chuvash Republic is studied. The correlations of the growth of the seedlings and agrochemical and physical properties of the soil are simulated
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INFLUENCE OF THE SOIL ON GROWING TYPES OF WOOD VEGETATION
DescriptionThe article reflects influences of soil conditions on growing types of wood vegetation. The carried-out chemical analyses show quantity of chemical elements which have to arrive to the soil with tree waste, and also acidity of the soil