The effects of triacontanol ‘TRIA’ and Asahi SL on the development
and metabolic activity of sweet basil (Ocimum basilicum L.) plants treated with chilling
Edward Borowski, Zbyszek K. Blamowski
Department of Plant Physiology
University of Life Sciences in Lublin
Akademicka 15, 20-950 Lublin, Poland
In a potted experiment the influence of foliar application of triacontanol (TRIA) at
the concentrations of 0.01; 0.10; 1.00 mg dm-3, and Asahi SL at the concentrations
of 0.1; 0.2; 0.3% on the growth and yielding of plants was studied. Electrolyte
leakage, water saturation deficit, contents of proline and chlorophyll a + b in
leaves, as well as the maximum quantum efficiency of chlorophyll (Fv/Fm) and gas
exchange in plants which were treated for five days in temperatures of 15/7°C
(day/night) were also examined.
The achieved results showed that periodic chilling decreased the value of all the
analysed parameters of the plants to a significant degree, with the exception of
electrolyte leakage, water saturation deficit and proline content, whose values under
these conditions increased. Triacontanol and Asahi SL favourably influenced both the
plants treated and not treated with periodic chilling, but the effect of biostimulators
on plants treated with chilling stress was clearly higher. The negative influence of
chilling on the plants of Ocimum basilicum L. was decreased by TRIA in the
concentration 0.10 mg dm-3, and by Asahi SL in the concentration of 0.2 and 0.3%.
Borowski E., Blamowski Z.K., 2009. The effects of triacontanol ‘TRIA’ and Asahi SL on the development
and metabolic activity of sweet basil (Ocimum basilicum L.) plants treated with chilling.
Folia Horticulturae 21/1: 39-48.