The article provides, according to the planting rate and phenological observations, the cultivation of annual saplings of Magnolia grandiflora when growing saplings from seeds. In order to accelerate the cultivation of young seedlings of the magnolia plant, work is underway to apply mineral fertilizers in various ways, and the results are recorded in a field journal. Experiments were carried out on a variation basis and 30 plant samples were obtained for each variation. In addition to the application of experimental fertilizers, additional preparations were used to protect our plants from various external influences: 1 g/1 of succinic acid was prepared from the roots and leaves in 5-7 days to remove leaves from stress. In addition to mineral fertilizers, organic (rotten manure) fertilizers were also used. The growth, development and characteristics of magnolia seeds were studied at the Andijan branch of the Research Institute of Forestry. As well as, growth rates, duration of ontogenetic cycles, moisture and mineral nutrition requirements, disease and pest resistance were also determined.
This article provides a theoretical description of the propagation of current pulses in plant tissue and the processes of destruction of cellular structures of harmful pathogens in the plant organism. Plants, from the point of view of electricity, are regarded as a well-conductive cable. The peel of the plant is the sheath of the cable, the fire (core) is the electrically conductive conductor. When infected with diseases, the growth of the cellular structure occurs and, as a result, the resistance of the plant tissue decreases. When current is applied, it passes through the circuit with the least resistance and thus provides the lethal effect of harmful microorganisms.
The sphere of forestry in our republic is developing in the current years. For the purpose of landscaping the territory of our country, reproduction and cultivation of virginia firs, abina firs, pine species, cypress trees, eastern biota, western camel, spruce and other deciduous trees from coniferous trees is widely established. These ornamental trees differ from other ornamental trees and shrubs in their heat–cold, drought resistance. Different landscapes and forest trees are initially planted in germination plants and seedlings from their seeds. In Uzbekistan, diseases of decorative and forest trees, especially their diseases in the germination period, have almost not been studied. The fact that many different diseases are encountered in landscape trees in recent years is known from different sources. The article provides information on the influence of the seasons on the spread of fungi that have appeared on the soil of some plantations and seedlings in Tashkent region.
A number of authors have reported on Clasterosporiosis and Polystigmosis diseases of almonds occurring in the Tashkent region. These diseases are common in the CIS in Central Asia, the Caucasus, Moldova, and Ukraine. As well as, these diseases are widespread in all almond growing regions in Uzbekistan. Clasterosporiosis and Polystigmosis are among the most damaging diseases of almonds in Bostanlyk district of the Tashkent region. Red spot disease was first reported in 1970 in the Iranian city of Shiraz and is widespread in the Mediterranean regions and in the Middle East. This disease is one of the most important almond diseases, as it slows down the process of photosynthesis and leads to early defoliation of trees. A drop in fruit production has also been caused by this disease. Polystigmosis (red spot) is caused by the fungus Polystigma rubrum (Po. rubrum). The disease does not quickly destroy the trees, but its damage reduces the quantity and quality of the crop, slows the development of new branches, and consequently weakens the tree. Thus, this brief review paper presents the recent studies focused on the comprehensive impact of Clasterosporiosis and Polistigmosis diseases on almonds plantation.
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