Determination of drought resistance of grapevine on the base of morphobiological characters of leaf blade
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2017-10-19 22:31
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CODREANU, Valentin. Determination of drought resistance of grapevine on the base of morphobiological characters of leaf blade. In: Revista Botanică. 2014, nr. 1(8), pp. 14-22. ISSN 1857-095X.
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Revista Botanică
Numărul 1(8) / 2014 / ISSN 1857-095X

Determination of drought resistance of grapevine on the base of morphobiological characters of leaf blade

Pag. 14-22

Codreanu Valentin
 
Botanical Garden (Institute) of the Academy of Sciences of Moldova
 
Disponibil în IBN: 4 decembrie 2014


Rezumat

As a result of the determination of the biometric values of 21 morphobiological characters of the leaf blade at different species and cultivars of grapevine, 5 adaptive characters which cause the drought resistance of grapevine (Vitis L.) were established. The most drought-resistant are those species, cultivars and hybrids of grapevine at which: the dry mass of the leaf blade is higher; the percentage of the volume of the fresh and dried leaf blade from the area of the fresh and dried leaf blade is higher; the degree of succulence and the degree of sclerophylly of the leaf blade are higher.On the base of these 5 characters of the leaf blade, the method for determining the drought resistance of grapevine has been developed. By this method, it is determined the relative drought resistance of 12 species of the genus Vitis L., 15 cultivars of the species Vitis viniera L., 3 cultivars - direct producer hybrids, 2 rootstock cultivars, and 7 distant hybrids V.vinifera L. x Muscadinia rotundifolia Michx.

Cuvinte-cheie
Drought, resistance,

leaf.