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Study of water exchange peculiarities of primocane raspberry in connection with breeding on drought resistance

https://doi.org/10.25556/VSTISP.2018.1.10499

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Abstract

The results of researches of the complex of water regime indicators of 9 primocane raspberry varieties in different phenophases of plants development have been presented. The evaluation of the total water content, water defi cit, waterholding capacity, the degree of water restoration in leaves tissues after high temperature exposure has been made in the laboratory. As a result it is established, that the greatest amount of water in the leaves (72.6 %) is contained in the phase of intensive shoots growth; a little less in the phase of budding-beginning of fl owering (63.0 %), even lower the water content in the fruiting phase (61.1 %). The water defi cit in all varieties was an average level and varied from 12.3 % in the variety Gerakl to 14.4 % and in the variety Oranzhevoe chudo. The loss of water after 4-hours of wilting decreased on vegetation phases. Among the studied assortment, the water of the varieties Gerakl, Poklon Kazakovu and Atlant, in which water losses amounted to 22.5-24.2 % have been relatively slowly given off. The dynamics of water content restoration after the heat shock on the vegetation phases had the opposite direction and looked as follows: intensive shoots growth (average 93.3 %)

For citations:


Evdokimenko S.N., Alekseenko I.V. Study of water exchange peculiarities of primocane raspberry in connection with breeding on drought resistance. Horticulture and viticulture. 2018;(1):24-29. (In Russ.) https://doi.org/10.25556/VSTISP.2018.1.10499

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ISSN 0235-2591 (Print)
ISSN 2618-9003 (Online)