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MAIN PAGE > Journal "Agriculture" > Contents of Issue 01/2022
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Contents of Issue 01/2022
Biological Resources
Nikiforova A.G., Skochilova E.A., Mukhametova S.V. - The content of organic acids and carotenoids in Sorbus fruits pp. 1-9


Abstract: Organic acids and carotenoids are important biologically active compounds that largely determine the pharmacological value of rowan fruits. In medicine, mountain ashberry is used as a multivitamin, diuretic, tonic. Its fruits are standardized according to the content of organic acids. In this work, the content of the organic acids sum and carotenoids in the fruits of Sorbus aucuparia and the varieties 'Burka', 'Granatnaya', 'Alaya Krupnaya' and 'Titan' from the collection of the Botanical Garden-Institute of Volga State University of Technology (Yoshkar-Ola, Mary El Republic) was studied. The moisture content in the fruits of all studied rowans varied from 0.49 to 0.60%, which corresponded to the permissible value of the pharmacopoeia. The amount of organic acids varied from 3.06 to 3.93%. In the fruits of the varieties 'Titan' and 'Burka' the greatest amount of the organic acids was found, slightly less was in the variety 'Granatnaya', but the difference is insignificant. The low content of the studied compounds was determined in Sorbus aucuparia and 'Alaya Krupnaya', while the value of this variety did not meet the requirements of the pharmacopoeia article. The content of carotenoids in rowan fruits varied from 3.09 to 5.60 mg%. In terms of the number of these compounds, the fruits of the varieties 'Titan' and 'Alaya Krupnaya' were in the lead. The smallest amount of carotenoids was found in the fruits of Sorbus aucuparia and 'Granatnaya'. The most promising for obtaining biologically active compounds is the variety 'Titan'.
Okach M.A., Egoshina E.A. - The growth and development dynamics of small fraction bulbs of Hyacinthus orientalis pp. 10-16


Abstract: Hyacinthus orientalis is a valuable decorative bulbous plant. One of the main limitations of its widespread use in landscaping is the low coefficient of vegetative reproduction and the high cost of planting material. Hyacinths are usually grown with the annual digging of bulbs in summer and planting them in autumn. The article presents the results of experience in growing bulbs of small hyacinth fraction with various agricultural techniques. The experiment was carried out in the period 2016-2018 in the open ground in the Botanical Garden-Institute of VSUT (the Mari El Republic). The dynamics of growth and development of 6 hyacinth varieties bulbs was studied during two-year cultivation with annual digging and without digging. It was found that the weight of bulbs of all studied hyacinths varieties increased intensively during two-year cultivation without annual digging. In the experiment variant with annual digging of bulbs weighing 7.3-8.5 g (first size), the formation of baby bulbs was noted only in the varieties Eros and Lady Derby, without annual digging in the varieties Carnegie, Lady Derby', Madame Sophie'. The weight of the bulbs of the second size (from 3.8 to 4.5 g) for 1 year of cultivation increased by an average of 1.6 times. Bulbs weighing up to 2 g (third size) for 2 years of cultivation are able to increase their weight by 3 times. Bulbs of terry varieties Rosette and Madame Sophie weighing up to 2 g grew better during two-year cultivation without annual digging. The data obtained can be used in the cultivation of hyacinths in decorative nurseries.
Botova A.V., Mukhametova S.V. - Dynamics of gladiolus leaves growth pp. 17-26


Abstract: Gladiolus L. are beautifully flowering perennials that do not overwinter in the open ground in the conditions of central Russia. Its varieties are characterized by a huge variety in the height of the peduncle, the color scheme and the corrugation degree of the flowers. The disadvantage of this crop is the complexity of the annual digging and planting of corms. The purpose of the article is to study the growth dynamics of real gladiolus leaves in the open ground. Leaf height measurements were carried out after 15 days in the process of growing plants on ridges. The objects of the study were 9 varieties: 'Aurora', 'Granatovyj braslet', 'Grad Kitezh', 'Devichi tajny', 'Dolgozhdannyj debyut', 'Majya Plisetskaya', 'Tanyusha', 'Shapka Monomaha', 'Noon Moon'. The study showed that the most intensive growth of gladiolus leaves occurred after the emergence of sprouts. On the 20th day after planting, the plants reached about 1/3 of their final height, and on the 35th day 50%, after 2 months the height was almost 90%. Most varieties were characterized by the greatest increase in the first accounting period, in the future its value decreased, reaching a minimum in the last accounting period. In the process of growth, the taller varieties remained tall, the shorter ones remained stunted. At each date of the study, 'Devichi tajny' had the highest height, 'Grad Kitezh' had the lowest height. The obtained data can be used in the cultivation of gladioli in nurseries and landscaping location.
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