Changes in some growth criteria, metabolic activities and endogenous hormones in tomato plans consequent to spraying with different concentrations of salicylaldehyde

ABSTRACT

An experiment was conducted for two successive seasons to study the effect of adenine, cytosine and thiamine on growth, pigment and alkaloid content of Datura metel L. Plant height, number of leaves and branches, leaf area, as well as fresh and dry weights of different organs were significantly increased by soaking the seeds with different levels of the three basic compounds used. The highest content of chlorophyll A,B and caretenoide in leaves were obtained with cytosine at 400 ppm concentration. Adenine, cytosine and thiamine showed a stimulatory effect on organic materials such as protein and alkaloids content in all organs of Datura plants