The comparative analysis of drought resistance of vine cultivars and forms in the conditions of Orenburzhye

Abstract

Vine (Vitis L.) is a relatively drought-resistant plant. Due to the introduction and a good ability to adapt the culture has become a widespread one in our country and has moved far to the north of the borders of its native area. In Orenburg high temperatures, combined with irregular precipitation during the growing season lead to frequent occurrence of droughts. That is why it is necessary to create optimal conditions for plants water treatment by increasing their drought resistance. The studies estimate water-holding capacity of the leaves – the average differential water losses velocity (SRES, Slw). The link with the known physiological indicators of water regime and water losses in laboratory wilting has been examined.