scholarly journals BIOLOGICAL FEATURES OF DIFFERENT VARIETIES OF SAINT MARY'S THISTLE (SILYBUM MARIANUM (L) GAERTN.) CULTIVATED IN SOIL-CLIMATIC CONDITIONS OF KHOREZM REGION, UZBEKISTAN

2020 ◽  
Vol 7 (07) ◽  
Author(s):  
Roza A. Bilalova ◽  

The article presents the results of a long-term of study of biological features of 54 sorts of Clematis L. genus of collection of the SouthUral Botanical Garden-Institute of UFRC RAS. The aim of the work was to summarize the introduction studies for the possibility of successful use of clematis sorts in vertical gardening in the Bashkir Cis-Urals and adjacent territories. During the period 2007 and 2015, the seasonal rhythm of growth and development and vegetative reproduction were studied, and the prospects of introduction and introduction resistance under the culture were assessed. The length of the clematis growing period varies from 156 to 168 days. The duration of flowering of sorts is 24–111 days. Rooting of clematis sorts using root-forming stimulators is 33 to 100%. The largest number of rooted cuttings was obtained using the preparation “Circon”. According to the results of the introduction success assessment, all the studied sorts have high resistance to local climatic conditions.


Author(s):  
Pavla Koláčková ◽  
Gabriela Růžičková ◽  
Ivana Šafránková ◽  
Karel Hron ◽  
Klára Hrůzová

The aim of this work was to evaluate the growth dynamics and selected morphological characteristics of genetic sources of milk thistle (Silybum marianum L. Gaertn.) for the further development of the minimal set of descriptors. Milk thistle is grown in the Czech Republic for its achenes; however, the quality of achenes can be reduced by many factors, by the occurrence of fungal pathogens mainly. The growth dynamics and morphological characteristics of milk thistle during the vegetation period in the years 2010–2013 at two localities were evaluated. The cluster analysis of the data showed the similarity for some of the accessions and confirmed the dependence of the data value to the climatic conditions. Source from Serbia, Slovakia, Romanian variety ’De Prahova’, German accessions SIL 2 and SIL 8, Hungarian accesion RCAT 040360 DDR and Czech variety ’Silyb’ seem to be promising genetic sources from the viewpoint of growth and development in the Czech Republic.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Noreen Zahra ◽  
Abdul Wahid ◽  
Muhammad Bilal Hafeez ◽  
Mohammed Nasser Alyemeni ◽  
Tariq Shah ◽  
...  

AbstractSilybum marianum (L.) Gaertn (Astraceae) is a well-reputed medicinal plant mostly utilized for silymarin (Sily) content and oil production, however, the information about Sily contents in achene part is still fragmented under different climatic conditions. In this study four milk thistle ecotypes from Faisalabad (FSD), Gujranwala (GUJ), Quetta (QTA), and Kallar kahar (KK) having an altered achene color were analyzed under salt stress. Application of plant growth promoters (PGPs) is one of the solution for ameliorating the effect of salinity and increasing the quantity and quality traits of milk thistle, so ascorbic acid (AsA), thiourea (TU), and moringa leaf extract (MLE) were soil supplied after developing salinity stress (120 mM with irrigation) at germination stage. Predetermined levels were selected for PGPs such as AsA (500 µM), MLE (3%), and TU (250 µM). Results revealed that all yield related attributes were significantly decreased, while secondary metabolites, pericarp epidermis, pericarp parenchyma, and pericarp seed integument increased under salinity stress. Data suggested that PGPs treatment was helpful to alleviate the deleterious effects of salinity stress and enhance the milk thistle quality and quantity parameters. The ecotypic variations with altered achene color patterns represent an advantage for QTA ecotypes for higher Sily extraction under salt stressed conditions.


Author(s):  
A.S. SOLOMENTSEVA ◽  
◽  
A.V. SOLONKIN

The Volgograd region, with its complex soil and climatic conditions, needs to develop and preserve an assortment of shrub species suitable for various landscaping purposes. Among the introduced and already existing species in the plantings, the most promising include Cotoneaster lucidus Schltdl., Rosa cinnamomea L., Ribes aureum Pursh., Berberis vulgaris L.,Mahonia aquifolium (Pursh.) Nutt., Symphoricarpos albus (L.) S.F. Blake, Amelanchier Canadensis (L.) Medik., Ligustrum vulgare L., Chaenomeles japonica (Thunb.) Lindl. ex Spach. The authors found that the studied species, due to their wide distribution area, perfectly adapted to the conditions of the region. In addition, the shrubs described in the paper, while forming new forest-agrarian landscapes, play an important role in enriching the species composition of flora and fauna, serve to preserve and increase the natural resources of the area, perform sanitary, aesthetic, recreational and other functions, which is of great importance in the conditions of desertification. The biological features of the studied species make them promising for agroforestry areas and soil zones with different precipitation levels. Due to the lack of natural seed bases in the territories occupied by protective forest stands, shrubs form the basis for growing planting material that has the entire set of economically valuable characteristics. Being recommended for use in an arid region, shrub species have good growth, development, well-developed shoots; they retain annual growth and decorative properties, and can be used to preserve the collection of the multifunctional plantings.


2018 ◽  
Vol 13 (2) ◽  
pp. 43-51
Author(s):  
Zaydin M. Dzhambulatov ◽  
Magomed M. Akhmedov ◽  
Omar P. Sakidibirov

Aim. The human factor has a significant influence on the development cycles of flora and fauna in the republic, including ticks, in which life cycles are associated with parasitization of agricultural animals, where biotopes are farm buildings, virgin and fallow pastures. Global changes in agriculture over the past two decades have led to an increase in natural pastures, reduction in the areas of sowing grasses, an increase in biotope areas and a number of parasitic ticks on animals. In this regard, we set a goal to study the ecological and biological features of the distribution of biotopes of arthropod parasites in the republic. Material and methods. The material of the study was ticks collected from cattle, sheep and horses in various zones. Collection of ticks was carried out by epizootic and regular methods. Observations, using the direct collection method, have been carried out for 7 years. Results. The researches revealed the presence of 4 genera of Ixodes ticks in the Republic: Hyalomma, Boophilus, Rhipicephalus and Dermacentor, and the genus Hyalomma occurs mainly in the Tersko-Sulak lowland, the rest can be discovered throughout the territory of Chechnya. Their species composition is represented by H. scupense, H. anatolicum, H. marginatum, H. plumbeum; B. annulatus; D. reticulatus, D. marginatus, D. daghestanicus and R. bursa. Conclusion. Through the infected eggs of the tick, further infection of the larvae takes place, which in turn, after molting, turn into the nymph and infect healthy animals, as well as the adult. The natural and climatic conditions of the Republic favor such a cycle of development of ticks.


Author(s):  
A. N. Punegov ◽  
A. N. Smirnova ◽  
O. V. Skrotskaya

The paper deals with the biological features of introduced species of Cotoneaster genus in the middle taiga subzone of the Komi Republic. The vegetation, flowering, fruiting, rhythm of shoots growth, winter resistance and seed productivity of six species of perennial plants of the genus Cotoneaster in new growth conditions were studied. The seasonal rhythm of development of all studied plant species at the point of introduction corresponds to the climatic conditions of the middle taiga subzone. The most promising species were selected for cultivation.


2020 ◽  
pp. 22-27
Author(s):  
V. M. Poliakovskyi ◽  
◽  
V. M. Mykhalska ◽  
L. V. Shevchenko ◽  
М. S. Gruntkovskyi ◽  
...  

This article reveals the biological features of guinea fowl and methods of keeping them. Guinea fowl are raised and bred to produce dietary meat, high-quality eggs, and to control pests of crops: snails, insects, including the Colorado potato beetle. The main direction of growing guinea fowl is meat, in terms of meat yield guinea fowl are not inferior to chickens. The taste of guinea fowl resembles game, but it is more tender, juicy and not fibrous. Guinea fowl have a horizontally placed oval body, short neck, large head with a strong growth in the crest, short, lowered tail. Guinea fowl are unpretentious, easily acclimatized to any natural and climatic conditions. The disadvantages of this species of bird include a poorly developed hatching instinct and aggression during capture. With age, the aggression of guinea fowl increases. This bird is also known to make unpleasant shrill sounds, which is why they are sometimes refused to breed. When keeping guinea fowl, it should be borne in mind that domestic guinea fowl inherited from the wild the ability to fly well. They are mobile, timid, reluctant to go to the nest and often lay eggs in hidden, cozy places. After isolating males from the herd, females are able to lay fertilized eggs for more than 10 days. This species of birds is quite well acclimatized and shows a fairly high egg productivity in different methods of cultivation. There are several ways to keep guinea fowl. The most common walking method, which involves keeping guinea fowl during the day on pasture, and at night — indoors. Keeping on the floor (on deep litter) is used when it is not possible to give the bird exercise. The cage method allows to increase the efficiency of production area, reduce feed costs by 15%, to mechanize the care and maintenance of poultry houses.


2020 ◽  
Vol 61 ◽  
pp. 77-85
Author(s):  
L. P. Chebannaya

The article presents the results of long-term research on the genus Clematis (Clematis L.) in the Stavropol Botanical garden. Biological, morphological and ornamental characteristics of varieties are provided; recommendations on selection of assortment and application in vertical gardening are given. For the first time, in the soil-climatic conditions of the Stavropol upland, an introduction study of 29 clematis varieties from six garden groups was conducted. According to the results of a comprehensive assessment, the most stable and highly decorative varieties were selected. In-depth study, parameters that have a significant value in the analysis of ornamental and economic-valuable qualities of varieties were revealed. In the course of research, when evaluating ornamental features, much attention was paid to the shape of the perianth, the size and color of the flowers. It was found that 24 varieties have an open flower shape, and five varieties have a bell – shaped one. The number of sepals varies from 4 to 6-8. In the presented garden groups, 27 varieties have a simple perianth, two with terry flowers. The size of the flower is divided into large-flowered, with a flower size of more than 10 cm and medium-flowered-from 4-10 cm. The color is varied, with many shades, from white-pink-red to blue-purple. When evaluating the prospects of the variety, special attention is paid to the duration and productivity of flowering. Varieties of the Lanuginosa and Patens groups bloom profusely in MayJune on shoots of the previous year and in July-September on annual shoots. In the groups Viticella, Jackmanii, Integrifolia and Texensis, abundant and prolonged flowering occurs on the shoots of the current year. Life forms determine not only the appearance of plants, but also are a criterion for use in garden and Park construction. Varieties of the Integrifolia group are preferably used for decorating low objects. For vertical gardening of structures with a height of more than three meters and as single and group planting varieties of garden groups are recommended Jackmanii, Lanuginosa, Patens, Viticella. The studied assortment, which has a complex of valuable ornamental and economic-biological features, is recommended for use in ornamental gardening and landscaping in the Stavropol territory.


Author(s):  
N. N. Prokopyeva ◽  
K. V. Samokhvalov ◽  
L. I. Balyasnaya

The article presents the results of the introduction study of Tall Bearded group of the Iris x hybrida hort. cultivars collection of Cheboksary branch of the MBG RAS for the purpose of determining the most promising for complex of biological features and adaptive capabilities during introduction in the soil and climatic conditions of the Middle Volga region. The potential possibilities of cultivars as an object for landscaping has been investigated. The determination of decorative qualities made it possible to divide the cultivars of iris into groups by color and size of the flower, to establish the number of flowers in an inflorescence, the height of the peduncle, the length of the leaf. As a result of the study of economic and biological characteristics, cultivars with a high, medium, low coefficient of vegetative reproduction, high, medium, low winter hardiness, moderately resistant very and moderately susceptible to heterosporous were identified. The study of the rhythm of seasonal development made it possible to determine the timing and duration of flowering of the studied cultivars of Iris x hybrida hort. in the conditions of the region. The main directions of further work with the collection are outlined.


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