Effects of temperature on some physiological activities in soybean plants sprayed with glyphosate

The response of soybean to glyphosate at rates between 10 ppm and 100 ppm was determined at different temperature regimes [28 degree, and 8 degree] with light level of 650 uEm[-2]S[-1]. Glyphosate reduced fresh and dry weight of plants and such reduction increases by the increase in temperatures and concentrations of the herbicides. Experiment of C[14] glyphosate showed that the differences in Phytotoxicity were due to absorption and translocation of the tagged herbicides. Glyphosate treatment induced marked reduction in chlorophyll content, carbohydrate and nitrogen fractions at 20 degree and 28 degree

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

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