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.
Aluminum Soil Toxicity. The only sure way to rule out aluminum soil toxicity is to get a soil test. Here are the symptoms of aluminum toxicity: Short roots. Plants growing in soil with toxic levels of aluminum have roots that are as little as half the length of roots in non-toxic soil. Shorter roots mean reduced ability to withstand drought, as well as reduced nutrient uptake. Low pH. When the soil pH is between 5.0 and 5.5, the soil may be slightly toxic.