Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Ivanisova Nadezhda Viktorovna

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associated professor

Honorary rank

Organization, job position

Novocherkassk Engineering Meliorative Institute named after A.K. Kortunov
   

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nadya80y@mail.ru


Articles count: 1

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TO THE QUESTION OF PHENOLOGY OF СONVALLARIA MAJALIS L. IN THE CONDITIONS OF THE MIDDLE DON

abstract 1221608010 issue 122 pp. 109 – 118 31.10.2016 ru 569
For the conservation of biodiversity, this study of patterns of biological processes and phases in the development of Convallaria majalis L. that are repeated annually becomes actual. In the article, we have presented an analysis of five years of observations of the rhythm of the development of Convallaria majalis L. in the conditions of the middle Don. There were allocated phenological phases of lily of the valley: vegetative (beginning of sprout growth, deploying of leaves), bud formation, flowering (disclosure of the first flower, mass blossoming, the withering of separate flowers, the ending of flowering), fruitage (the beginning of fruit setting, mass of fruit setting, mass ripening of fruits), the end of the vegetation (appearance of the first changes in color of leaves, the complete drying). We have defined daily average temperature and the appropriate amount of positive temperatures for the passage of various phases of development Convallaria majalis L. By the results of two growing seasons, the optimal daily average temperature for the flowering period is 14,3 ° C (the sum of average daily temperatures 161,3-204, 0С) - until 9-15 days. At higher daily air temperatures flowering begins at lower amount of positive and effective temperatures after 40-45 days after the start of the vegetation. At lower daily air temperatures flowering is longer than at higher. In the conditions of the middle Don there were allocated some examples of Convallaria majalis L. which bloom two years in a row
.