Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Bessmertnaya Maria Valerievna

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Kuban State Agrarian University
   

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INFLUENCE OF HETEROAUXIN ON REGENERATIVE CHARACTERISTICS OF GRAPE CUTTINGS IN RELATION TO LIGHT CONDITIONS

abstract 1081504025 issue 108 pp. 379 – 400 30.04.2015 ru 850
This article is devoted to treatment effects of cuttings of a grape variety called Moldova with 0.01% solution of heteroauxin on their regenerative capacity, depending on the light conditions. We have established that the germination of cuttings in the dark, as well as the treatment of heteroauxin significantly stimulate their regenerative abilities. The length of the shoots, regardless of the use of heteroauxin, depends on the mode of the light produced during the germination of cuttings. In both studies, the length of the shoots on the end of experiment cuttings germinated in the dark, was 1,71-2,66 times more than when germinated in the light. Cuttings rooting ability also largely depends on the light produced in their germination. In both studies, the rooting of cuttings started earlier and passed more rapidly during their germination in the dark. Processing cuttings with heteroauxin, followed by germination in the dark, speeded up the formation of roots even more, compared with the case where the cuttings treated with heteroauxin germinated in the light. In the best case rooting increased by 42,5-47,5%, the number of roots on basal ends of cuttings in 18,3- 18,5 times, the numbers of cuttings with 3 or more roots to 72,5-80,0%
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