Evaluation of drought resistance of primocane raspberry on some parameters of water metabolism in the conditions of Bryansk region
https://doi.org/10.31676/0235-2591-2019-5-23-27
Abstract
The results of comparative study of productivity and some parameters of water metabolism of primocane raspberry varieties in the conditions of Bryansk region are presented. The purpose of the work was to evaluate drought-resistance of original varieties and select on her basis the most valuable genotypes. There were studied 8 primocane raspberry varieties: Bryanskoe divo, Karamelka, Podarok Kashinu, Snezhet, Pingvin, Poklon Kazakovu, Oranzhevoe chudo and Rubinovoe ozherelye. In laboratory conditions, an evaluation was made of the total water content, water deficit, and water holding capacity of the leaves during critical periods of plant water availability. It was established that the greatest amount of water in the leaves (65.63 %) is contained in the phenophase “intensive growth”; less-in the phenophase “budding” (60.73 %), even lower water content – in the phenophase “fruiting” (58.02 %).The water deficit decreased on vegetation phases, but at the same time he was on average level (11,42-16.68 %). The leaves of raspberry varieties Podarok Kashinu and Poklon Kazakovu marked a low level of water deficiency in the phenophase “fruiting” (9.2-9.8 %). The water-holding ability increased on vegetation phases. Among the studied assortment, the leaves of the varieties Poklon Kazakovu and Podarok Kashinu relatively slowly lost water after 4 hours of wilting (water loss 19.35-26.86 %). The yield data of raspberry varieties in drought conditions are presented. The varieties Poklon Kazakovu and Podarok Kashinu have been characterized by a relatively great yield. On the basis of the study of productivity and water metabolism parameters, relatively drought-resistant primocane raspberry varieties were identified: Poklon Kazakovu and Podarok Kashinu.
About the Author
I. V. Alexeenko
Bryansk State Agrarian University
Russian Federation
Russian Federation
Alexeenko Igor V., postgraduate student
243365, Russia, Bryansk region, Vygonichsky district, Kokino
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For citations:
Alexeenko I.V. Evaluation of drought resistance of primocane raspberry on some parameters of water metabolism in the conditions of Bryansk region. Horticulture and viticulture. 2019;(5):23-27. (In Russ.) https://doi.org/10.31676/0235-2591-2019-5-23-27
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