Сельскохозяйственная биология, 2012, № 1, с. 86-92.

doi: 10.15389/agrobiology.2012.1.86eng

УДК 635.64:58.056:581.1:631.811:577.175.1

EFFECT OF SILK PREPARATION IN THE CONDITIONS OF COMPLEX ACTION OF TEMPERATURE AND WATER STRESS ON TOMATO PLANTS

T.S. Kolmykova¹, A.S. Lukatkin¹, P. Dukhovskis², N.N. Kulikova¹

The authors studied the effect of silk preparation of triterpene nature on morphophysiological parameters in young tomato plants of the Volgogradskii 5/95 variety, grown in the conditions of water and temperature stress. It was established, that optimal concentration for seed presowing treatment is 10^-7 %. The studied growth regulator at the period of 5th leaf stimulates the gain of axial vegetative organs and the leaf area, stabilizes the state of cell membranes reducing their permeability. It was shown, that the action of silk preparation on the plants is more efficiently in the conditions of stress (low and high) temperatures.

Keywords: tomato, stress, drought, temperature, silk, growth regulator.