The disease triangle the very appearance of the disease in the plant population and the intensity of its development depends on three factors that are.
Plant protection from diseases the problems of phytopathology are part of a more fundamental environmental problem that arose as a result of the.
Reasons and plants of plant disease plant diseases are divided into two large groups - infectious and non-infectious. agents of the first group have.
Bacteria - causative agents of plant diseases several hundred species of bacteria are parasitic on plants. this, of course, is incomparable with tens,.
Violation of the natural chain that regulates the balance of organisms in the ecosystem the balance of the number of individual species that make up the.
Methods for determining the genotypic composition of phytopathogen populations virulence and aggressiveness phytopathogenic organisms have two important.
Benefits of integrated plant protection 1. increase the effectiveness of protective measures. the joint application of various methods of protection.
Biocontrol methods the drugs used for biocontrol must have a sum of certain properties: - efficiency at low concentrations; - undemanding to growth.
Congenital immunity - the sixth line of defense in response to parasite-generated ways of avoiding the protective properties of a damaged cell, the plant.
Chemical composition and structure of viruses all viruses contain one or more nucleic acid molecules (rna or dna) coated with the same protein molecules.
Pcr product detection systems detection systems can be divided into specific and non-specific to a specific dna sequence. specific systems allow reliable.
Polymerase chain reaction, its modifications and application for the identification of phytopathogenic organisms pcr was invented in 1983 by american.
Integrated plant protection principles of integrated plant protection according to the definition of experts from the food and agriculture organization.
The content of chemicals in the soil lack of nutrients causes various violations of physiological processes, manifested in slowing the growth rate of.
Mushrooms-biotrophs they excrete into the plant not toxins that kill cells, but suppressor substances, or effectors , suppressing the course of immune.
Care from the parasite - the third line of defense unlike animals, plants can not walk, so care it should not be understood literally, but as a change in.
Pcr laboratory organization all methods associated with pcr are very sensitive. to carry out the reaction and obtain a detectable pcr product, not only.
Genetics of resistance. theory gene versus gene the study of the genes that control this or that property of the organism was carried out by crossing two.
Z plant diseases in populations (foundations of epiphythetiology) the individuals composing each species of organisms usually form more or less isolated.
Inventory of the number of pathogens methods for determining the number of microorganisms parasitizing on aboveground and underground organs are.