Anatomical and morphological changes of plant pollen of species of the genus Pinus L. under the influence of pests and diseases
The study of variability of the morphology of pollen grains of the genus Pinus. Differences in the total amount of abnormal pollen under the influence of pests and pathogens of different nature. The possibility of diagnosing of biotic influence on plants.
Подобные документы
The influence of growth factors on the development of callus and roots in the biennial cuttings of the olive plants. The effect of indolyl acetic acid and Na+-salt of naphthenic acid on olive cuttings. The changes of N, P, K and Ca in flowers and fruits.
статья, добавлен 24.02.2025Individual genetic heterogeneity as the main factor driving prolonged dormancy of the species. Three morphological states were identified in dormant plants of Fritillaria including a false dormancy in individuals which carried on growing below ground.
статья, добавлен 25.02.2021Spainish slug Arion lusitanicus is one of the harnfulness transitive pest in mollusc in Europe. It causes serious losses to agriculture. Portudal, North Spain or France consisted their motherland. The pests spread in area of Great Britain, Austria.
статья, добавлен 15.09.2024Description of the genus Carbonea. Descriptions of five species of Carbonea from the Carpathians and the Crimean Peninsula (C. aggregantula (Mull. Arg.) Diederich & Triebel, C. assimilis, C. vitellinaria and C. vorticosa), studies of herbarium specimen.
статья, добавлен 28.01.2016The discovery of new localities of nine species listed in the Red Book of Ukraine, and six regionally rare plant species during expeditionary research on the territory of Volyn region in 2013. The necessity for research phytodiversity Volyn region.
статья, добавлен 27.07.2016The main compounds of the Н. arenarium essential oil were oleic acid, ethyl hexadecanoate, sclareol. The extracts showed a high level of total phenolic content, which make the studied plant species as a potential source of natural antioxidant or a source.
статья, добавлен 10.06.2022Анализ изменчивости 20 аллозимных локусов, генетических особенностей растений с высоким и низким уровнями опыленности и оплодотворенности семяпочек Pinus stankewiczii. Значение доли полиморфных локусов и количества аллелей для высокоопыленных деревьев.
автореферат, добавлен 07.04.2014The morphology of the leech (size of the body and gills, structure of the cuticle) and molecular-genetic diversity of the species. Study of its properties, current status in water bodies, and methods of reproduction in natural and laboratory conditions.
статья, добавлен 05.09.2024The figures are constantly growing. Before choosing them, determine the parameters of the requirements for them and objectively assess the level of technological support of the economy, composition and fertility of soils, the level of their cultivation.
статья, добавлен 16.06.2024- 60. Current status and taxonomical composition of the natural dendroflora of the Hirkan National Park
Inventory of natural and cultivated plant species, the impact of climate change on biodiversity, the taxonomic composition of trees and shrubs, dominant species, and the distribution areas of the studied plants in the ecosystem of Hirkan National Park.
статья, добавлен 24.02.2025 Consideration kind Podolaspis Zych of three types: podolica Alth, lerichei and zychi. The first description and nomenclature discrepancy delivery Parapteraspis and Mylopteraspis Stensio. Species variability pteraspid - morphology orbitsphere pineal belt.
статья, добавлен 15.04.2014The peculiarity of the reduction of natural habitats of rare plant species. Ontogenetic characteristics of some rare and endangered species common in the north-eastern part of the Lesser Caucasus, the state of their coenopopulations were studied.
статья, добавлен 04.09.2024Regularities of changes in the fractional-group composition of humus of sod-podzolic soil under the influence of various fertilizer systems in the conditions of Western Polesie. Favorable conditions for the accumulation of humus in the arable soil layer.
статья, добавлен 29.06.2022Investigation of the influence and localization of cryopreserved ossified multipotent mesenchymal stromal cells with intravenous administration to animals with ovarian inflammation. Substantiation of reparative activation of ovarian tissue morphology.
статья, добавлен 28.09.2016Feed plants are dynamically utilized by humans. This leads to a decreasing supply of feed plants. For this purpose, we studied the rare species of feed plants in the vegetation of Gunnut-Kapychik physiographic area where we conducted our research.
статья, добавлен 10.10.2024Influence of Cu2+, Zn2+, Ni2+, Cd2+, Al3+ and Cr6+ on the pigment synthesizing yeasts Rhodotorula glutinis 1333. Yeasts ability to lose pigment under different heavy metals concentrations. The certain metal concentrations’ presence in the medium.
статья, добавлен 29.01.2017Metabolic signs of abiotic stress limiting plant growth and productivity. Study of biochemical, physiological and molecular mechanisms regulating adaptation of pea plants to salt stress. Development of salt-tolerant plant varieties in saline areas.
статья, добавлен 10.10.2024The decorative properties of woody plants. Woody plants provide a number of ecosystem services to urban landscapes. Most of the plants used for landscaping perform an important decorative function together with the architectural ensemble of cities.
статья, добавлен 10.10.2024The introduction of Momordica charantia L. plant in Nakhchivan, adaptation to the soil and climatic conditions of this area. Obtaining plant seeds, which are recommended to be used taking into account the agrotechnical features of this species.
статья, добавлен 24.02.2025The adaptation of the vegetative sphere of the plant to the environmental conditions. Observations of structure and its growth on tropical trees. Analysis of the condition of the regeneration shoots in the plant depending on the level of the substrate.
статья, добавлен 24.02.2025Characterization and study of bacterial diseases on agricultural crops and weeds under different cropping systems. The definition of biological properties, identification of pathogens, traditional and modern molecular-genetic methods of research.
статья, добавлен 29.01.2016Vegetable objects and edible and medicinal fungi are described by the method of electron microscopic research on bacteria, phages, viruses, fungi. The pathogens of different taxonomic groups under the conditions of latent infection are revealed.
статья, добавлен 28.12.2017Study of the influence of nitrogen and carbon sources on the synthesis of enzymes. Carrying out a bifractor experiment to determine the optimum concentrations of ammonium sulfate and arabinose in a nutrient medium, which increase the elastolytic activity.
статья, добавлен 28.09.2016Jasmonic acid biosynthesis. Molecular mechanism of jasmonate action. Jasmonate biological activity. Regulation of seed germination. Influence on ageing processes. Jasmonic acid and sex determination and immunity. Involvement in adaptation processes.
статья, добавлен 03.06.2016Investigation of the unique plant communities of Ordubadsky district. Classification of structures of the mountain-xerophytic and steppe flora of the region. Identification of the taxonomic composition and classes of tree species of the Rosaceae family.
статья, добавлен 10.10.2024