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REGENERATION OF WINTER GARLIC PLANTS (ALLIUM SATIVUM L.) IN VITRO FROM BULBILS
2018
A. V. Polyakov | M. A. Azopkova | N. N. Lebedeva | I. V. Muraveva
Garlic is exclusively vegetatively propagated plant which damaged by numerous virus, bacterial, fungus and other phytopathogens. Under propagation of damaged plants phytopathogens are transferred to progeny that leads to decrease in productivity, loss of quality, storability and frequently to degeneration of cultivars. In this regard improvement of landing material is obligate stage of the modern technologies of garlic production. Experimentally reasonable technology of the obtaining revitalized landing material of winter garlic based on in vitro cultivation of air bulbils on MS medium containing BA in concentration of 2 mg/l and NAA – 1 mg/l, which followed by formation of sprouts and then plants with bulbs is presented in the article. It is established that application of graduated sterilization of air bulbils isolated from not revealed inflorescences with diameter up to 25 mm for introduction in vitro culture allows to obtain plants free of internal infections. One of important factors influencing effectiveness of induction of morphogenesis is the plant genotype. Cultivar Emperor was characterized by high morphogenetic potential in vitro culture which significantly surpassed cultivar Gladiator at all stages of cultivation. The share of vital explants of Emperor cultivar consisted of 74,2%, and Gladiator cultivar – 56,3%. The morphogenesis of air bulbils in vitro conditions depends on their age. The share of vital micro bulbs with leaves formed under cultivation of air bulbils within 21 days isolated on 7th day after of exit of inflorescences from leaf sockets in depending on cultivar consisted of 65,0% and 76,4%. Cultivation of air bulbils of more old age is followed by their 100% growth with formation of leaves and microbulbs. Adaptation of such plants to ex vitro conditions is followed by obtaining monoclove bulbs cultivation of which in the open ground conditions leaded to formation of polyclove bulbs.Cultivation of plants in vitro on the medium containing sucrose in concentration of 10% gives the chance to keep viability material within 5-6 months.
Show more [+] Less [-]VARIETY STUDYING AND ADAPTATION OF SORTS AND EARLY POTATOES MEDIUM EARLY IN THE ARID CONDITIONS OF THE LOWER VOLGA TO DRIP IRRIGATION
2012
A. F. Tumanyan | N. V. Tyutyuma | N. A. Shcherbakova
Potatoes are high-plastic plants that can be grown in almost all climates. In the Lower Volga, in the conditions of strong spring drought, high temperatures and soil throughout the growing season, lack of rainfall, potatoes can be grown only for irrigation. To obtain high and stable yields in these difficult conditions it is necessary to research varieties and its adaptation.
Show more [+] Less [-]Fighting slugs and snails on potato plantings
2024
S. V. Vasilieva | V. N. Zeyruk | M. K. Derevyagina | G. L. Belov | E. A. Kolesova
Relevanse. The article presents information about actively spreading potential pests of agricultural crops in the Central region of the Russian Federation – slugs and snails – invertebrates belonging to the genus of gastropods. The harmfulness of these pests is manifested in a decrease in the size of the crop, a decrease in its quality, loss of marketability and fruit keeping. The most seriously affected in this regard are the planting of cabbage, lettuce, peas, turnips, potatoes and cucumbers. Snails and slugs can serve as a source of infectious diseases, various fungal spores, bacteria and parasitic helminths are often carried with the mucus produced by their bodies, which often pose a threat to the health of people and pets.Methods. Visual surveys were carried out to determine the number of pests in the field and in the adjacent territory in the conditions of the Moscow region (Lyubertsy city district). The studies were conducted in accordance with officially approved methods. Data on the species composition of pests are analyzed. The possibility of active harmful activity and potential threat of gastropods in a changing climate and their adaptation in the conditions of the Central region of the Russian Federation is considered.Results. According to the results of the conducted research, it was found that in vegetable gardens and private farms, grape snail and arable slug are most often found, in potato plantings – field (arable slug). Recommendations on slug and snail control in the private sector and farms are given.
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