scholarly journals Seasonal and multiannual dynamics of sedentary species populations of hunting interest

2021 ◽  
Author(s):  
Anatol Savin ◽  
◽  
Oleg Ciocoi ◽  
Mihail Scerbliuc ◽  
Gheorghe Grosu ◽  
...  
Keyword(s):  
Reproductive Period ◽  
Climatic Conditions ◽  
Cold Period ◽  
Game Species ◽  
Vegetative Period ◽  
Grey Partridge ◽  
Small Game ◽  
Arid Conditions ◽  
Offspring Growth ◽  
Number Dynamics

The aim of the research was to study the number dynamics of the populations of dominant sedentary species of hunting interest as a theoretical context in arguing sustainable measures for the management of economic interest fauna. The studies between 2000-2021 shows that after a period of depression in the populations of sedentary species of hunting interest in 2004-2012 there is an increase from 2016-2017 till present of reproductive stocks in all studied species on average by 95%. The losses in the cold period of the year varied depending on the climatic conditions of the cold period of the year, as well as the age structure at the end of the reproductive period: for the hare between 14% and 30%, with an average of 23%; in grey partridge from 56% to 71% and in pheasant they fluctuate between 48% and 56% of the autumn number, being lower in warm winters (37%). Analyzing the dynamics of annual increases in sedentary small game species in different climatic conditions, it was found that arid conditions during nesting and offspring growth, decrease annual increases by 143% in pheasants, 122% in hares, and only 74% in partridges, which is a species less dependent on aridizations in the vegetative period.

scholarly journals Effects of Rootstocks on Blade Nutritional Content of Two Minority Grapevine Varieties Cultivated under Hyper-Arid Conditions in Northern Chile

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 327
Author(s):  
Nicolás Verdugo-Vásquez ◽  
Gastón Gutiérrez-Gamboa ◽  
Emilio Villalobos-Soublett ◽  
Andrés Zurita-Silva
Keyword(s):  
Climatic Conditions ◽  
Soil Conditions ◽  
Northern Chile ◽  
High Tolerance ◽  
Nutritional Content ◽  
Pests And Diseases ◽  
Arid Conditions ◽  
High K ◽  
Warm Weather ◽  
Nutritional Imbalance

In the 90s, as in other countries, transformation of Chilean viticulture brought about the introduction and spread of European grapevine varieties which has resulted in a massive loss of minor local and autochthonous grapevine varieties traditionally grown in several wine growing regions. Fortunately, in recent years, autochthonous and minority varieties have been revalued due to their high tolerance to pests and diseases and because of their adaptation to thermal and water stress triggered by global warming. In this study, we assessed the nutritional status of two autochthonous grapevines grafted onto four different rootstocks under the hyper-arid climatic conditions of Northern Chile over three consecutive seasons. The results showed that R32 rootstock induced high N, P, Ca, Mg and Mn levels in blades compared to Harmony rootstock. R32 rootstock and to a lesser extent, 1103 Paulsen and 140 Ruggeri rootstocks kept balanced levels of nutrients in blades collected from Moscatel Amarilla and Moscatel Negra grapevine varieties. Additionally, Harmony presented slight nutritional imbalance compared to the rest of studied rootstocks due to its low absorption of Mg, Mn, Ca and P, and its high K absorption, which was exacerbated under warm weather and salinity soil conditions. These results may provide a basis for specific cultivar/rootstock/site combinations, a nutritional guide for the viticulturists of Northern Chile, and options to diversify their production favoring the use of minority and autochthonous varieties that adapt well to hyper-arid conditions of Northern Chile.

scholarly journals Evaluation of adaptive capacity of genotypes of spring cereals in arid conditions of the Astrakhan region

2019 ◽  
pp. 25-30
Author(s):  
Valentina Aleksandrovna Fedorova ◽  
Nina Alekseevna Naumova ◽  
Ekaterina Vasylyevna Yachmeneva ◽  
Yulia Pavlovna Tarasenkova
Keyword(s):  
Adaptive Capacity ◽  
Spring Wheat ◽  
Growth And Development ◽  
Spring Barley ◽  
Climatic Conditions ◽  
Grain Yields ◽  
Arid Conditions ◽  
Local Soil ◽  
Spring Cereals ◽  
Biological Plasticity

Objects of research were: spring wheat Saratovskaya 70-st, Cardinal, 3 Curenta, Madam, Nil avocet yr7's, Angarida; spring barley Ratnik-st, Medium 135, grace, Vakula, Brassa; spring oats Showjumping-st, Leo, Bulan, Kuranin. As a result of the study of these varieties of spring crops, the most adapted to local soil and climatic conditions samples were identified. The selected samples were distinguished by high biological plasticity, growth and development rates, maximum use of moisture, as well as the ability to form high grain yields.

scholarly journals BEHAVIOR OF SOME GRAPEVINE CULTIVARS FROM MURFATLAR VINEYARD IN THE SPECIAL CLIMATIC CONDITIONS OF THE WINE YEAR 2019-2020

2020 ◽  
Vol 1 (1) ◽  
pp. 133-140
Author(s):  
Ionica Dina ◽  
Aurora Ranca ◽  
Anamaria Tănase ◽  
Sergiu-Ayar Ene
Keyword(s):  
Growth And Development ◽  
Climate Changes ◽  
Climatic Conditions ◽  
Cabernet Sauvignon ◽  
Red Wines ◽  
White Wines ◽  
Vegetative Period ◽  
Average Value ◽  
Weak Growth

The climate changes in Murfatlar vineyard in recent years consist inthe increase ofmonthly average temperatures, recorded in both cold and warm seasons, accompanied by an irregular distribution of rainfall during the year, which significantly influences the growth of grapevine, the quality and production of grapes.Six representative cultivars were studied, three for white wines: Chardonnay, Columna and Muscat Ottonel and three for red wines: Fetească Neagră, Mamaia and Cabernet Sauvignon. In the last two years (2019-2020) warm winters and very dry summers have led to the onset of budburst, almost simultaneously for all the studied cultivars, followed by a very weak growth and development of shoots (2020) and an acceleration development of phenophases, mainly berween veraison and ripening. Water stress during the vegetative period, a hygroscopicity below 60% between July and August and low vegetative apparatus influenced the growth ofthe berries, resulting small grapes, and a very low must yield in 2020.Concerning the quality of grape production, the studied cultivars achieved more sugar concentrations in berries up to 35.8 g/L (in 2019) and 36.0 g/L (in 2020), higher than the values obtained in normal years. In the conditions of a pronounced dry climate manifested in the two years of study, the productions were below the normal level, especialy in 2020, achieving much diminished productions for all cultivars, except the Mamaia cultivar. The Mamaia cultivar had a positive reaction, registering an increase of production, that exceeded the multiannual value by 20% in 2020 andby 10% in 2019, the concentration of sugars in the must being above the average value obtained in normal years, exceeding by 3% and 9%, respectively, the multiannual average. Statistical calculations were done using SPSS Statistics 17.0, using mainly the Duncan test for a degree of significance of 5%.

scholarly journals Identification of the photosynthetic potential of spring oat varieties in the Lower Volga Re-gion

2021 ◽  
pp. 31-34
Author(s):  
Nina Alekseevna Naumova
Keyword(s):  
Reproductive Period ◽  
Climatic Conditions ◽  
Volga Region ◽  
Lower Volga Region ◽  
Net Productivity ◽  
Photosynthetic Productivity ◽  
Lower Volga ◽  
World Collection ◽  
Yield Values ◽  
Photosynthetic Potential

In 2017-2019, in the agro-climatic conditions of the Lower Volga region, the experience of studying spring oat varieties of different ecological and geographical origin from the world collection of VIR was laid, in order to determine their photosynthetic potential, and to identify varieties with high photosynthetic productivity. Over the years of research, the most adapted varieties of this crop were selected, their photosynthetic potential was determined, and the intensity of photosynthesis during the reproductive period of development (during the main growth phases) of spring oats in the conditions of the Lower Volga region was analyzed. On average, for 3 years of studying the collection varieties of spring oats in terms of the net productivity of photosynthesis, samples were noted: Myrtle, Athlete, Urs guara, Urs penca, p. 1. 3326 It was determined that with the growth of (FP) and (BPF), the yield of oats also increased. Since this indicator directly depends on the physiological and bioclimatic processes occurring in plants during ontogenesis. In the highest yield in 2017, it varied from 0.66 to 2.01 / ha. In 2018, the minimum yield values for all varieties were obtained from 0.51 t / ha of the Dookie 10 variety to 1.78 t / ha of the Mir variety. In the conditions of 2019, the yield variability by variety was from 0.60 t / ha to 1.94 t / ha. Thus, out of the 8 studied varieties, 5 were identified - p.1. 3326, Guara Urs, Urs foam, Athlete, Myrtle, as highly productive, and therefore the most resistant to abiotic stresses of the conditions of the Lower Volga region.

scholarly journals Bryophytes on the devastated territories of sulphur deposits and their role in restoration of dump substrate

2018 ◽  
Vol 26 (4) ◽  
pp. 339-353
Author(s):  
I. V. Rabyk ◽  
O. V. Lobachevska ◽  
N. Y. Kyyak ◽  
O. I. Shcherbachenko
Keyword(s):  
Plant Cover ◽  
Photosynthetic Apparatus ◽  
Life Forms ◽  
Climatic Conditions ◽  
Projective Cover ◽  
Biogenic Elements ◽  
Moisture Regime ◽  
Moss Species ◽  
Vegetative Period ◽  
Specific Composition

Bryophytes possess a wide ecological diapason allowing them to populate substrates of technogenic origins which are scarcely suitable or completely unsuitable for viability of vascular plants. 49 bryophyte species, which belong to 2 divisions, 3 classes, 8 orders, 17 families, and 33 genera have been found on the dump territory of sulphur extraction of the mining-chemical enterprise “Sirka” (Yavoriv district, Lviv region). Seven transects, three on the north slope (base, slope, top), three on the south slope and one on the plateau were laid for sample selections. 20 investigated 0.5 × 0.5 m plots located 2 m apart were analyzed within each 10 × 10 m transect. Specific composition, life forms, projective cover, biomass of bryophytes, numbers of male, female and sterile plants, moisture content in the turfs, pH and physiological investigation of mosses were determined on each plot. The quantitative analysis of the biomorphological structure allowed us to establish the dependence of the spread of life forms on exposition and slope height; essential variability of the projective cover and moss biomass. Bryophyte cover plays an essential part in optimization of the moisture regime and surface layer temperature of technogenic substrates, improving the conditions of growth localities. We established that on the dump the dominant moss species are dioecious with a high level of reproductive effort (sexual and sexless), with short ontogenesis and age of first reproduction, which provides the chance to produce the maximum number of progeny in the minimum period and to form a complete moss cover. The analysis of seasonal moss photosynthesis dynamics has demonstrated the adaptability of moss photosynthetic apparatus to contrasting climatic conditions and the ability to support the intensity of photosynthetic processes on a rather stable level during the vegetative period. Our research showed that bryophytes play an important role in productivity of plant cover on the post-technogenic territories of sulphur extraction. It was found that bryophytes play a role in accumulation of organic carbon and biogenic elements in the substrate of the sulphur extraction dump . Carrying out research of specific composition dynamics and species activity is the precondition for revealing the essence of the dynamic processes taking place in the structure of the bryophyte communities on devastated territories and the influence of these processes on the formation of vegetation on dump complexes.

scholarly journals Hot summers, long life: egg laying strategies of Maniola butterflies are affected by geographic provenance rather than adult diet

2013 ◽  
Vol 82 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Andrea Grill ◽  
Andrea Cerny ◽  
Konrad Fiedler
Keyword(s):  
Amino Acids ◽  
Egg Production ◽  
Sucrose Solution ◽  
Reproductive Period ◽  
Climatic Conditions ◽  
Egg Laying ◽  
Endogenous Factors ◽  
Central European ◽  
Oviposition Strategy ◽  
Adult Diet

Maniola butterflies undergo summer dormancy in dry and hot habitats and deposit their eggs only in early autumn when conditions become more favourable for their offspring. Female individuals of this genus are therefore relatively long-lived. For long-lived butterflies adult diet is of particular importance. We tested if added amino acids in nectar substitute fed to the butterflies affected timing of oviposition, fecundity and longevity. A hundred Maniola females were sampled from Mediterranean and Central European populations and made to oviposit under controlled laboratory conditions. Forty individuals were offered sucrose solution with additional amino acids while the remainder were fed with plain sucrose solution. We found that egg-laying strategies and longevity depended on geographic provenance rather than diet. Supplementary amino acids in adult diet did neither prolong lifetime nor increase total egg production. Maniola females from Sardinia started to lay eggs at least 20 days later relative to Central European M. jurtina and lived three times as long. Mediterranean individuals had on average twice the length of reproductive period and lifespan relative to Central European ones, and individuals of Pannonian origin lived longer than Alpine butterflies. Average total egg numbers were 200-350 eggs per female and did not differ significantly between populations. The fact that oviposition strategy could not be altered through diet may indicate that for univoltine butterflies, like Maniola, diet-quality at the adult stage is less important than endogenous factors, or factors the butterflies are exposed to in an earlier developmental stage than the imago. Oviposition strategy closely matched the climatic conditions that prevail in the geographic regions where these butterflies fly.

Temporal quota corrections based on timing of harvest in a small game species

2012 ◽  
Vol 58 (5) ◽  
pp. 797-802 ◽  
Author(s):  
Henrik Brøseth ◽  
Erlend B. Nilsen ◽  
Hans C. Pedersen
Keyword(s):  
Game Species ◽  
Small Game

scholarly journals REPRESENTATIVES OF THE VITALBAE PRANTL. SUB-SECTION OF CLEMATIS L. GENUS IN THE COLLECTION OF THE SOUTHURAL BOTANICAL GARDEN–INSTITUTE OF UFRC OF THE RAS

2020 ◽  
pp. 73-77
Author(s):  
R. A. Bilalova ◽  
◽  
V. P. Putenikhin ◽  
Keyword(s):  
Integrated Assessment ◽  
Growth Form ◽  
Shoot Formation ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
Research Centre ◽  
South Urals ◽  
Preliminary Estimate ◽  
Vegetative Period ◽  
Federal Research

Results of the introduction researches of 5 species of Clematis in a collection of lianas of South-Ural Botanical Garden-Institute of Ufa Federal Research Centre are presented in article. According to phenological observations in 9 years (2007–2015) integrated assessment of introduction perspectives and introduced stability of clematises is given. The scale developed by P.I. Lapin and S.V. Sidneva for wood plants is used for assessment of introduction perspectives. Preliminary estimate of introduction stability is carried out according to a scale of N.V. Trulevich. Extent of ripening of shoots, winter hardiness, preservation of growth form, shoot-formation ability, generative development, ability to reproduction in culture were estimated. All species are characterized by stability of rhythmic processes and their fitness to local climatic conditions. Duration of the vegetative period consists of 5,5 months. Duration of flowering of C. ligusticifolia is more than 2,5 months, C. gouriana is more than 2 month, C. apiifolia, C. fargesii and C. brevicaudata is not less than 1,5 months. In accordance with the scale of introduction stability, all the studied species belong to the perspective group of II (80-85 points). All the species under investigation can be used in green landscaping in different regions of the South Urals.

scholarly journals Production of Puno and Titicaca quinoa cultivars - cost benefit analysis

2021 ◽  
Vol 26 (5) ◽  
pp. 2953-2963
Author(s):  
SLAĐANA SAVIĆ ◽  
◽  
BORISZ CZEKUS ◽  
ENIKE GREGORIĆ ◽  
SONJA ĐURIČIN ◽  
...  
Keyword(s):  
Management Practices ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Cost Effective ◽  
Economic Benefits ◽  
Climatic Conditions ◽  
Benefit Analysis ◽  
Growing Seasons ◽  
Arid Conditions ◽  
The Republic

The aim of the paper is to test the effect of climatic conditions and management practices on the yield of two quinoa cultivars (Puno and Titicaca) and to analyze the economic benefits of quinoa productivity. The experiments were carried out during the 2017 and 2019 growing seasons in rain-fed conditions on a Serbian farm. The results of the two-year long experiments proved that the growing of the quinoa cultivar Puno and particularly the cultivar Titicaca in the agro-ecological conditions of Serbia would be remarkably successful from the aspect of agronomy (with the obtained average yield of 2.5 t ha-1 ) as well as from the aspect of economy (with the achieved average profit of 9,411 € ha-1 ). The obtained profit values indicate that the quinoa production in the Republic of Serbia would be more cost-effective than the production of the field crops which are already produced, particularly in the increasingly present arid conditions.

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