scholarly journals Bio-ecological features of Salsola Richteri Kar. in cultural conditions

2020 ◽  
Vol 1 ◽  
pp. 50-52
Author(s):  
Baltabaev Muratbay ◽  
Kalbaeva Sarigul
Keyword(s):  
Root System ◽  
Good Growth ◽  
Seed Productivity ◽  
Cultural Conditions ◽  
Ecological Features

The article is devoted to the study of the bio-ecological features of the Richter's saltwort (salsola richteri kar.) In cultural conditions. Good growth of Cherkez on bare sands, high seed productivity, the ability to multiply by seeds and cuttings and tolerate significant salinity, powerful growth of the root system contributed to its promotion as a promising plant when the sands were consolidated.

scholarly journals Combining Ability for Seedling Root System Size and Shoot Vigor in Interspecific Blueberry Progenies

1994 ◽  
Vol 119 (4) ◽  
pp. 793-797 ◽  
Author(s):  
W.A. Erb ◽  
A.D. Draper ◽  
H.J. Swartz
Keyword(s):  
Root System ◽  
Combining Ability ◽  
Variance Components ◽  
Mineral Soil ◽  
Dry Weight ◽  
System Size ◽  
Good Growth ◽  
Seedling Root ◽  
Root System Size ◽  
Highly Correlated

Interspecific blueberry (Vaccinium spp.) progenies were examined to determine combining abilities and genetic variability for seedling root system size and shoot vigor and to establish whether a large root system is correlated with good growth when plants are grown on a mineral soil and exposed to a moderate soil water deficit. General combining ability (GCA) variance components for root system size and shoot vigor and specific combining ability variance components for shoot vigor were significant. US226, a tetraploid hybrid of V. myrtilloides Michaux × V. atrococcum Heller, had the highest GCA effect for root system size and the lowest GCA effect for shoot vigor. US75 (V. darrowi Camp × V. corymbosum L.) had the highest GCA effect for shoot vigor and was second in GCA effect for root system size. Comparison of the crosses containing G111 (V. corymbosum) with those containing G362 (V. corymbosum) indicates that selecting for the best V. corymbosum clone to start a breeding program seems as important as selecting the mineral soil-adapted parent. Root system ratings were highly correlated with total dry weight of field-grown plants (r = 0.89). The method used in this study to evaluate seedlings for root system size and shoot vigor could be used to eliminate the less vigorous plants from a population before field planting and to evaluate mineral soil adaptability.

scholarly journals Scientific support of production experiments in forest plantations of green zone in Nur-Sultan city

2019 ◽  
Vol 14 (4) ◽  
pp. 437-452
Author(s):  
Svetlana A Kabanova ◽  
Andrey N Kabanov ◽  
Ardak A Khasenov ◽  
Matvey A Danchenko
Keyword(s):  
Root System ◽  
Quercus Robur ◽  
Climatic Conditions ◽  
Good Growth ◽  
Satisfactory Condition ◽  
Introduced Plants ◽  
Green Zone ◽  
Spring Frosts ◽  
Continental Climate ◽  
Selection Of

Natural and climatic conditions of the green zone of Nur-Sultan (Kazakhstan) are unfavorable for tree and shrub species due to low soil fertility, sharply continental climate and other factors. The purpose of the research was to choose an assortment of stable introducents for Nur-Sultan green zone. The monitoring of growth and condition of artificial plantations included the selection of an assortment of stable coniferous introducents. The objects of research were coniferous introducents, which were planted in 2011 as container annual seedlings and three-year-old seedlings with open root system. According to the results of observations of conservation, taxation indicators and condition of artificial plantations, it was revealed that for the soil and climatic conditions of the research region, Picea nigra and Picea sibirica turned out to be the most adapted. Quercus robur was also characterized by good growth, but in the first years after planting, it was significantly damaged by late spring frosts and rodent ingestion. Larix sibirica , despite the fact that most of its plants died in the first years after planting, has adapted to soil and climatic conditions now and grows well enough and has a satisfactory condition. The safety of introduced plants planted with annual seedlings with a closed and open root system was practically the same and at the age of 8 it was 62.6 and 64.9%, respectively. It was revealed that it is better to plant crops with older seedlings (3-4 years old), because cultivation of annual seedlings with closed root system requires large financial and labor investments due to prolonged manual care. Therefore, to create artificial plantations in the green zone of Nur-Sultan, Picea sibirica , Picea nigra and Quercus robur can be recommended. When growing them, it is necessary to carry out thorough agro-technical cares and protection from rodents.

scholarly journals Preliminary results of the monitoring bio-ecological features of plants Fritillaria ruthenica Wikstr. in the model forest habitats of the Krasnosamarsky forest

2016 ◽  
Vol 5 (2) ◽  
pp. 33-38
Author(s):  
Mariya Gennadevna Kotelnikova
Keyword(s):  
Significant Proportion ◽  
Plant Conservation ◽  
Growth Conditions ◽  
Shoot Length ◽  
Anthropogenic Factors ◽  
Good Growth ◽  
General Description ◽  
Science Literature ◽  
Preliminary Results ◽  
Ecological Features

The article presents some preliminary results of the monitoring of Fritillaria ruthenica Wikstr. plants (category of rare and endangered plant species, included in the Red Books of Russia and Samara Region). By summarizing the available sources of science literature we have compiled a general description of morphological and bio-ecological species characteristics. The results of the field study fulfilled in 2012-2014 in Krasnosamarsky forestry (Samara region) were used to determine morphometric parameters of Fritillaria ruthenica plants. The data also helped us to assess the variability level and to make a comparison with plant quantitative traits given in the literature. It was found that the shoot length of Fritillaria ruthenica plants from model biotope in Krasnosamarsky forest in 2012-2014 varied in the range of 20 ... 70 cm, in 2012 and 2013 individuals with long shoots about 50 cm dominated, in 2014 - with shoot length about 50 and 60 cm. The feature of the shoot length is characterized by plasticity, the highest level of variation was observed in 2013. The lengths of shoots are inside the range specified for the various parts of the area in the literature with a significant proportion of tall plants in the studied population. This may be a sign of good growth conditions for Fritillaria ruthenica that gives an opportunity to the plant conservation in natural communities in the absence of limited anthropogenic factors.

scholarly journals Ecological, biological and coenotic features of common lily-of-the-valley (Convallaria majalis L.) in the conditions of Zhytomyr Polissya

2016 ◽  
pp. 65-69
Author(s):  
O. Ishchuk
Keyword(s):  
Raw Materials ◽  
Vegetative Reproduction ◽  
Weather Conditions ◽  
Seed Productivity ◽  
Natural Habitats ◽  
Seed Formation ◽  
Ecological Features ◽  
Convallaria Majalis ◽  
Bad Weather ◽  
Favorable Weather

A study deals with the natural habitats of Convallaria majalis L., its biological characteristics and capabilities to the seed to renewal. The features of generative and vegetative reproduction Lily of the valley in terms of Polissya are determined. A lily of valley (Convalaria majalis L., is a valuable medicinal herb, as well as an ornamental plant. The healing properties of lily of valley are caused by the presence of glycosides and saponins. The popularity of the species leads to its reduction. Nowadays the possibilities of this valuable plant application are not determined. That is why; there is a necessity to explore the habitat of this plant, its bio ecological features and the possibilities of seed restoration. The purpose of investigation is to study ecological, biological and coenotic features of a lily of valley in Zhytomyr Polissya region. Conclusions and perspectives of further researches are proved. The favorable weather conditions in 2012 allowed sufficient germ number to form. It was 200 per generative sprout in 2013. The real seed productivity in years of the research was not high and it was from 20–30 to 38 seed per species. 2013 was the least favorable year for seed formation. A lily of valley forms from 10 to 18 germs of seeds. But some part of them is able to form seeds. So, 12 germs could form 4, 3 seeds in 2011, 10 germs could produce only 4, 4 in 2012. The number of seed germs increased in 2013, but seeds were not produced. The absence of seed materials is due to the bad weather conditions during the pollination and flowering period. So, the seed restoration of a lily of valley is rather slow and random. The population is restored because of its vegetative propagation. The further researches will be focused on Convalaria majalis habitat clarification in natural conditions of Zhytomyr region in order to develop the recommendations for the proper harvesting of pharmaceutical raw materials without damaging any other natural species.

scholarly journals Seed productivity of Allium stipitatum (Alliaceae) in cultural conditions (Tajikistan)

2020 ◽  
Author(s):  
D.S. Sattarov ◽  
◽  
Sh.S. Murodov ◽  
Keyword(s):  
Plant Introduction ◽  
Seed Productivity ◽  
Cultural Conditions ◽  
Forest Belts ◽  
Natural Protection ◽  
Data Book ◽  
The Republic ◽  
Protective Forest ◽  
Growing Conditions ◽  
Favorable Conditions

This article presents the results of studying the plant introduction and the possibility of cultivation of Persian shallot – Allium stipitatum Regel. This plant is popularly used in pickled and salt form for the preparation of various salads, because of which it is classified as an endangered species and is listed in the Red Data Book of the Republic of Tajikistan. Studies on the seed productivity of domesticated Persian shallot were carried out in 2017- 2019 on the territory of experimental plots of the National Republican Center of the Genetic Resources of the Tajik Academy of Agricultural Sciences (Gissar Valley), which is located in the northern part of Rudaki district at an altitude of 730 m above sea level. It was established that the average number of fruits is 250 ± 15.7 pcs; the number of fruit set is 210 pcs; the total number of seeds is 809 pcs per fruit. When compared with the natural growing conditions (Gajne area), it turned out that the seed productivity of Persian shallot under natural conditions is averagely 16.7% - 24.5% higher than in the Rudaki district (Gissar Valley). As a result of the studies, it was found that it is necessary to choose areas with natural protection from sunlight (protective forest belts or stool beds) to create more favorable conditions in the first years of adaptation of Persian shallot in the Rudaki district.

scholarly journals Evaluation and Characterization of Microalgae from Kalaburagi Region as a Potential Source of Biomass Production

2021 ◽  
pp. 549-555
Author(s):  
Asha Jagan Korban ◽  
A. B. Parameshwar ◽  
M. B. Sulochana
Keyword(s):  
Biomass Production ◽  
Abiotic Factors ◽  
Biomass Productivity ◽  
Nitrogen Sources ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Good Growth ◽  
Maximum Biomass ◽  
Cultural Conditions ◽  
Nutritional Conditions

Microalgaes are considered for a large number of applications such as biomass and energy production due to their increased capability of biomass production. Various biotic and abiotic factors influence the growth of microalgae. Among the abiotic factors include the temperature, light intensity, pH of the medium, salinity, and nutritional conditions play the major role. Ten samples of microalgae were collected from different sites of water bodies from Gulbarga University campus. The microalgae isolated were identified and characterized using light microscope, SEM and PCR based 18s rRNA. Influence of cultural conditions such as carbon and nitrogen sources, pH, temperature and salinity on biomass production were studied and analyzed. Among the strains identified, a novel species was isolated and identified as Scenedesmus vacuolatus AK1. The maximum growth rate and biomass productivity can be achieved by providing glucose as carbon source and urea as nitrogen sources at an optimum of 0.5gm/l and 0.1mg/l irrespectively. It was also observed that the strain showed a good growth profile and increase in biomass production at an optimum alkaline pH of 8. Maximum biomass productivity of 0.6g/l was observed at an optimum temperature of 30˚C in BG-11 medium. Maximum biomass yield of 1.45g/l was observed at 5mM NaCl concentration.

scholarly journals TO SOLVE THE PROBLEMS OF DIAGNOSING THE GROSS RESOURCE OF LICORICE ROOT AND ITS EXTRACTION IN THE VOLGA-AKHTUBA FLOODPLAIN

2021 ◽  
Vol 16 (4) ◽  
pp. 42-47
Author(s):  
Vitaliy Mamin ◽  
Tat'yana Koshkarova ◽  
Ekaterina Zinchenko ◽  
Lyubov' Vronskaya ◽  
Natal'ya Kruglyakova
Keyword(s):  
Root System ◽  
Sandy Loam ◽  
Soil Layer ◽  
Licorice Root ◽  
Root Mass ◽  
Alluvial Deposits ◽  
Ecological Features ◽  
Subsurface Waters ◽  
Physical And Chemical ◽  
Alluvial Meadow

The article reflects the results of many years of research on the study of the root system of naked licorice (Glycyrrhiza glаbra L.). The formation of this valuable plant occupies significant areas of the Volga-Akhtuba floodplain. The work was carried out in order to establish the regularities of the formation and accumulation of roots in local populations of licorice in order to diagnose their reserves with subsequent scientific substantiation of technological regulations for the industrial production of licorice, which guarantee self-restoration of cenopopulations. Based on the totality of morphological and ecological features, the diversity of adaptability of architectonics, the root system of licorice can be regarded as ecologically universal and, in some respects, unique. The multivariance of its structure for a number of typical habitats of this plant is explained by the influence of different regimes of surface waters during floods and subsurface waters during the growing season, in conditions of a wide variety of alluvial deposits along the profile of the soil aeration zone, their physical and chemical characteristics. The floodplain formation of naked licorice includes a large number of communities of various species composition, which, with varying degrees of its participation, are among the seven most frequently encountered associations. The most productive are clean malt houses formed in the central (insular) part of the lower floodplain and delta under conditions of annual flood moistening of soils. Licorice acquires the most intensive productive development, settling on non-saline floodplain alluvial meadow and meadow dark-colored granular soils of light granulometric composition, as well as on alluvial meadow sandy loam soils formed on middle flood relief elements. In these habitats, the root mass (total, wet) in the soil layer of 0.40 m can reach 22 ... 25 tons per hectare in some areas. Most often, the root mass of licorice naked along the soil profile is distributed as follows: 90% of all roots and rhizomes - in a layer of 1.0 ... 1.2 m, including 60% - in a layer of 0 ... 0.3 m, 20% - in layer 0.3 ... 0.5 m

scholarly journals The assessment of bio-ecological features of plants Tulipa biebersteiniana Schult. et Schult. fil. in the model forest habitats of the Krasnosamarsky forest

2016 ◽  
Vol 5 (3) ◽  
pp. 30-35
Author(s):  
Mariya Gennadevna Kotelnikova
Keyword(s):  
Average Length ◽  
Significant Proportion ◽  
Plant Conservation ◽  
Population Group ◽  
Shoot Length ◽  
Anthropogenic Factors ◽  
Good Growth ◽  
General Description ◽  
Science Literature ◽  
Ecological Features

The paper presents some preliminary results of the monitoring of Tulipa biebersteiniana Schult. et Schult. fil. plants (category of rare and endangered plant species). By summarizing the available sources of science literature we have compiled a general description of morphological and bio-ecological species characteristics. The results of the field study fulfilled in 2012-2015 in two population groups of the Krasnosamarsky forestry (Samara region) were used to determine morphometric parameters of Tulipa biebersteiniana plants. The data also helped us to assess the variability level and to make a comparison with plant quantitative traits given in the literature. It was found that the shoot length of Tulipa biebersteiniana plants varied in the range of 23 50 cm, the maximum average length of 40 cm are presented in plants of population group number two. The distribution of shoot length among individuals of the second population group is more stable, changes depending on the year of vegetation are poorly expressed. The lengths of shoots inside the range specified for the various parts of the area in the literature with a significant proportion of high plants in the population is studied. This may be a sign of good growth conditions for Fritillaria ruthenica that gives an opportunity to the plant conservation in natural communities in the absence of limiting anthropogenic factors.

scholarly journals The structure of the features variability of Hordeum brevisubulatum Trin. (Link) in the middle Lena valley

2020 ◽  
Vol 19 (2) ◽  
pp. 207-210
Author(s):  
K. V. Kardashevskaya ◽  
V. E. Kardashevskaya ◽  
D. A. Alekseeva
Keyword(s):  
Perennial Grass ◽  
Biological Indicators ◽  
Leaf Sheath ◽  
Morphological Features ◽  
Seed Productivity ◽  
The Third ◽  
Ecological Features ◽  
Hordeum Brevisubulatum ◽  
Inflorescence Length

The structure of variability of morphological features of perennial grass Hordeum brevisubulatum (Trin.)Link has been studied. The biological and ecological features-indicators defining the vitality state of individual andcoenopopulations of species were determined. Biological indicators are the length of the leaf sheath of the third and fourthleaves of the generative shoot and the signs of the generative sphere (inflorescence length, number of nodes and spikeletsin the inflorescence and potential seed productivity). The group of ecological features-indicators includes the number ofdifferent types of shoots in an individual.

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