Laboratory method of assessment the salt-endurance of resource types of woody plants

Increase of stressful impacts intensity, including soil salinization, requires different approaches to studying and assessment the resistance to stress of vegetable resources. Usually accounting of amplitude and speed of change the different physiological parameters in stressful situations forms a basis for assessment the plants stability. In vitro first of all estimate viability of seeds and growth of sprouts. In tasks of this work the assessment the role of regeneration processes of isolated structures entered resistance to salinization and possibility to use this indicator for its diagnostics. Distinctions in root formation in case of cultivation in NaCl solutions (10 - 100 mm) at different shanks of a number of objects are noted: hypocotyl of shanks of gledichiya and albition, sheet and stem mulberries, stem quince, cherry plum, alychevo-peach hybrid, grapes, pomegranate, poplar, willow. In work selective and lethal doses of NaCl are established, more steady are revealed (grapes, quince, willow) cultures and it is shown that activity of rhizogenesis of stem shanks in the conditions of salinization is a convenient indicator for diagnostics of salt-endurance of woody plants. The analysis of viability of woody cultures shanks in the conditions of stress is actual as it matters for an assessment of their resource potential and can significantly reduce stability diagnostics time.