Wiktionary (0.00 / 0 votes) Rate this definition: participatory democracy (Noun). Kind of democracy not limiting participation of citizens to voting, but striving to create opportunities for everybody to make meaningful contributions to decision-making.
4. Minimal mitotic activity in the root tip cells of Allium ceja is reached between three and four hours subsequent to treatment with 128 r of x-rays, and between two and one-half and three hours following treatment with 512 r of x-rays. Between treatment and fixation all root tips were maintained at 32 C. 5.icia root tip after irradiation. As is shown in Table 11, Allium root tip cells, treated with 128 r of x-rays, ex-hibit no significant decrease in late prophase frequency until two and one-half hours after treatment.
The root tip is on the bottom of the Zone of elongation and the zone of elongation is where the cells are and the cells push the zone of elongation and the root tip gets the w â¦ ater and sends the water through the xylem into the plant.So the root tip get the water. The reason for mitosis occurring most commonly in the onion root tip is because the onion root tip is a rapidly growing area of the plant. + 2 others found this useful. Jada Nneji.