Effect of Plant-derived smoke solution on root of Ipomoea marguerite cuttings under Cobalt Stress

The effect of plant derived smoke solutions on seed germination and seedling vigor is well documented. The present study was designed to find out the effect of Cymbopogon-derived smoke solution (1:500 dilution) on root of Ipomoea marguerite under CoCl2 (10, 20 and 30 ppm). Inhibitory effect of CoCl2 was observed on number of adventitious roots, numbers of lateral roots and adventitious root length as the concentration of CoCl2 (10, 20 and 30 ppm) increases. It was observed that 1:500 dilution of smoke significantly increased number of adventitious roots, numbers of lateral roots and adventitious root length. Plant derived smoke solution alleviated significantly inhibitory effects of CoCl2 at lower concentration (10 and 20 ppm). These results suggest that plant derived smoke dilution (1:500) showed positive effects and alleviated the inhibitory effect of CoCl2 on plant cuttings.