The introduction history of jubaea chilensis ( Jubaea chilensis (Molina) Baill., 1895) in the Nikitsky Botanical Gardens (NBG) has been described. Data of the phenological observations and quantitative characteristics of the leaves growth on average over the vegetation period have been reported. Rhythm of growth and development of this species by the year seasons have been determined. It has been revealed that jubaea chilensis “remembers” on a genetic level change of seasons in its homeland region and grows in the Southern Coast of the Crimea (SCC) by rhythms of the Southern hemisphere. The reasons and factors reducing its winter resistance and causing an irregular blossoming and a fruit bearing under the conditions of the Northern hemisphere have been determined. The thresholds values of freezing temperatures under introduction conditions (SCC) for jubaea chilensis have been determined. The agricultural engineering recommendations of this species cultivation under the conditions of the Southern Coast of the Crimea have been elaborated.

The large population of Orlaya grandiflora (L.) Hoffm. which is about 300,000 specimens has been found in the Mountainious Crimea. It has been done the description of localities, the taxonomic composition of companion vegetation crops has been defined, a relative size of each vegetation species has been discovered.

The article covers the inspection results of an algae-macrophytes flora within the sea aquatory in Opuk Nature Reserve. For the time being, taking into account the nomenclature-taxonomic corrections, a species composition consists of 77 species: Chlorophyta - 20 (the representatives of 1 class, 4 orders, 8 families, 9 genera); Ochrophyta - 16, including 1 intraspecific taxon (the representatives of 1 class, 6 orders, 10 families and 14 genera); Rhodophyta - 41, including 1 intraspecific taxon (the representatives of 4 classes, 11 orders, 12 families, 24 genera).

The article gives the description of trees in the Crimea only sweet chestnut grove ( Castanea sativa ), which consists of eight trees Castanea sativa and one chinese chestnut tree ( Castanea mollissima ). Despite the fact that the soils are calcareous in the Southern Coast of the Crimea , chestnut trees successfully developed and bore fruits during a long-term period.

The positive influence of microbiological preparations on growth, development and yield formation of strawberry in conditions of the Crimea has been found. The use of the drugs Fosfoenterin, Biopolitsid, Azotobacterin, Aurill contributed 100% survival rate of strawberry plants varieties and early Crimean Yuniol and Diazofit, Aurill, Fosfoenterin - grades Krymchanka and Crimean remontant. The most effective on the test grades are the drugs Aurill and Diazofit which provide respectively an yield increase of berries 2,8 and 8,3 grade Crimean earlier, 7,7 and 6,8 - grade Krymchanka, 13,0 and 2,9 - Crimean remontant and 6,6 and 6,0 t / ha - Yuniol varieties. The studies have shown that Aurill and Diazofit have a significant impact on the increase of the generative organs (the number of stems and berries on a bush at 23 - 68%) and consequently the yield to 33-60%, and also has been an increase in the resistance of plants to diseases and pests.

This work presents the results of studying of the rootstock type impact as well as influence of the length of main components and intermediate stem pieces of the apple grafts (on the ММ-106 with intercalary insertion of ЕМ IХ) on their growth and development. The planting stock was grown using a bench (winter) grafting in the plastic foil house. It has been found that ultimately the difference between control (simple grafting without insertion) group and the choices with layer length 30, 20, 10 cm and insertion length 20 cm is imperceptible for the standard graft output and is essential for the non-standard graft output. It has been proved that rootstock and cultivar are matter for the planting stock growing. Standard grafts over all studied cultivars on ММ-106 rootstock outyield others. The output is as follows: for Golden Delicious - 208-234K, for Rennet Simirenko - 219-225K, for Salgirskoe - 202-218K per hectare.

The article presents the research results in terms of productivity, quality and a biochemical composition of the fruit of the trees in the garden different designs on dwarf rootstock M 9 and srednerosloe МM 106 with insert М 9 with planting density of 1633 - 4762 the village / ha in terms of the Crimea.. Based on the results it had been found that the most productive revealed a trellis - garden dwarf on the rootstock M 9 with plantations of varieties Golden Delicious and Jonagold svobodnorastuschego in the formation of the spindle where the average yield for the period of 2011 -2015 years was 30.1 and 26.1 t / ha . Indicators of the average yield in the garden with elements of the Dutch technology during this period were at 25.1 t / ha (Golden Delicious) and 22.6 t / ha (Jonagold). The biochemical composition of the fruit has a clear varietal specifics, but it is significantly affected by the type of garden and growing conditions.

11 studied immune to scab apple varieties have been studied. The main features of the structure of their crown have been shown. All samples marked with a high resistance to scab and powdery mildew, which allowed to use them in breeding for the resistance to pathogens. The immune varieties with high yield, large-fruited, dessert with fruit quality were obtained, which were recommended for use in breeding for these traits. According to the content of ascorbic acid in fruit and organic acids, this group yields the usual varieties. The level of sugars and solids differs slightly.

The article presents the results of a comparative study of clonal rootstocks’ breeding of an apple tree and a quince tree in vertical and horizontal ways. The characteristics of other ways to obtain cuttings accelerated are presented. According to the results of studies, the method of a horizontal rootstock cultivation is the most productive one. The rest of the studied methods can be used as the additional ones, if it's necessary to breed deficient forms.

It has been defined a correlative subordination between a numbers increasing of isolated insect and tick orders and temperature-humidity conditions of a vegetation period. It has been discovered that Acariformes order specimens have the highest subordination on hydrothermal conditions. In the years of GTK indicator less than 1 the numbers of tick phytophagans in the orchards is sharply increased. For Lepidoptera order specimens the moderate temperature and humidity are optimum with GTK indicator in terms of 0.9-1.0, the coefficient of correlation is 0.63. The lowest subordination between a climatic conditions of a vegetative period and a numbers dynamics is for the membrane-winged, the two-winged and the equiwinged.

The taxonomic position of a grooved mealybug, the areal, the list of fodder plants, character of damage have been given. The research results of the biological peculiarities, the reasons of a phytophagan spreading have been specified. The biological efficiency of chemicals for controlling pests in different stages of ontogenesis from different groups of chemical compounds have been shown.

The peach trees’ reaction on the Crimean terrace agrological brown skeleton soils’ composition and properties has been studied as well as their parameters to be suitable for peach orchards

The meadow - chestnut soils have been recognized suitable for fruit and oily cultures as the examination result of the agricultural arable and pasturable land in Jankoy introduction quarantine nursery of the Nikitsky botanical gardens, that is located in the village of Medvedevka (The Jankoy region, the Crimea republic). In view of a salt horizon is close to be deposited, a soda salification, a higher alkalescence on the part of the area, the soils are differently in a limited degree suitable for the laying of gardens, a nursery and oil cultures. For a successful plantation on those soils a droppings irrigation against a background of drainage should be organized and watering in small norms should be made not to have a durable soil drying out and a repeated salification, it is necessary to bring in organic fertilizers (40 - 50 tons per hectare) and a mineral phosphorous (150 -300 kgs per hectare) in dependence of a soil type, a phosphorous gypsum or copperas for a deep cutting before a plant laying (1 - 2 tons per hectare) with a further soil bathing against a background of drainage. Saline soils with sulphates, chlorides and soda should be had a soil improvement with a higher norms of phosphorous gypsum or copperas (1 - 10 tons per hectare).