BIO Web Conf.
Volume 25, 2020International Scientific Online-Conference “Bioengineering in the Organization of Processes Concerning Breeding and Reproduction of Perennial Crops” 2020
|Number of page(s)||7|
|Section||Getting Healthy Planting Material of Horticultural Crops and Grape Varieties by Means of Bioengineering|
|Published online||01 October 2020|
Dynamics of the growth processes of Prunus armeniaca L. seedlings in the conditions of Inner Mountain Dagestan
Mountain Botanical Garden DFRS RAS, str. 75 Yaragskogo, Makhachkala, 367000, Russia
2 Dagestan Federal Research Centre RAS, str. 45 M. Gadjiyeva, Makhachkala, 367000, Russia
* Corresponding author: email@example.com
The paper presents the results of assessing the dynamics of growth processes 364 seedlings of 16 apricot samples under conditions of a critical altitude level for them in Dagestan (1900 m). A comparative study of apricot samples showed that during the growing season, annual seedlings form a small height of the main shoot (18.7–28.7 cm), subramose (0.4–2.7) and leafiness (14.7–23.6). Analysis of the relative dynamics of shoot growth showed that the maximum growth was observed in May-June (62.8–95.7%) and low in July-September (1.0–24.5%). A reliable correlation was established between the relative growth of the studied samples and their winter hardiness, namely, the higher the relative increase in July-September, the lower the winter hardiness. The correlation in MayJune was -0.77**, and in July and September 0.62* and 0.64 **, respectively. The experiment showed the information content of studying the growth of shoot length as a diagnostic feature in assessing the winter hardiness of apricot seedlings in the mountainous conditions of Dagestan.
© The Authors, published by EDP Sciences, 2020
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