Vol. 11, Issue 9 (2022)

Author(s):
Shamiya Jahan, Thi Thi Myint, Sheela Rautela, Ritika Misra, SC Shankhdhar and Deepti Shankhdhar

Abstract:
Salicylic acid (SA) has been recognized as a strong tool and act as signaling molecule for sustainably alleviating adverse effects of abiotic stresses particularly water deficit conditions. An experiment was therefore conducted to test whether the application of SA at various concentrations (25, 50, 75, 100, 125 and 150 mg/L) as a foliar spray would protect Brahmi (Bacopa monnieri L.) plants when subjected to water deficit stress based on reduce irrigation; (i) Well watered (regular), (ii) Water deficit A (two times within a week) and (iii) water deficit B (only 1 time within a week). Under water deficit SA improved the growth rate of medicinal herb Bacopa monnieri thorough increasing the numbers of shoot, shoot length, leaves number, fresh and dry herbage yield as compared to control. It appeared the best ameliorative remedies of SA obtained when Bacopa monnieri were sprayed at 75 mg/L under stress exposure, while higher conc. (above 100 mg/l) showed less improvement.