• M. N. Mhaiskar

The effect of herbicides on macromolecular contents of seedlings was studied at the concentrations form 10 to 100 ppm , 100 to 40,000 ppm and 100 to 40,000 ppm of 2,4-D, glyphosate and stomp, respectively. The RNA contents of seedlings decreased gradually with the increased concentration of herbicides. The RNA content of control seedlings was observed 1.3 × 10-4. In 2,4-D treated seedlings, RNA per seedling was 1.2 × 10-4, 1 × 10-4, 0.8 × 10-4, 0.5 × 10-4, 0.07 × 10-4 and 0.03 × 10-4 . Glyphosate treated seedlings, the percentage of RNA content per seedlings at 100, 1000, 5000, 10,000, 20,000 and 40,000 ppm were 1.2 × 10-4, 1 × 10-4, 0.8 × 10-4, 0.7 × 10-4, 0.5 × 10-4 and 0.3 × 10-4 , respectively. Following stomp treatment, RNA content per seedling at 100, 1000, 5000, 10,000, 20,000 and 40,000 ppm were 1.3 × 10-4, 1.2 × 10-4, 0.9 × 10-4, 0.8 × 10-4, 0.6 × 10-4 and 0.3 × 10-4, respectively. Thus, in the present study, it is concluded that 2,4-D was more effective in inhibiting macromolecular synthesis while glyphosate and stomp have the less inhibitory effect on RNA as compared to 2,4-D.

2,4-D; glyphosate; stomp; herbicide; Sida acuta;.

"EFFECT OF HERBICIDES ON THE RNA IN WEED SEEDLINGS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.d265-d268, January-2022, Available :http://www.jetir.org/papers/JETIR2201336.pdf

"EFFECT OF HERBICIDES ON THE RNA IN WEED SEEDLINGS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppd265-d268, January-2022, Available at : http://www.jetir.org/papers/JETIR2201336.pdf