Abstract
The effects of o-isopropyl-N-phenyl-carbamate (IPC) and “Duphar” were studied on root-mitosis of Vicia faba and Gossypium barbadense. Two types of treatments were conducted: seed-soak-, and root-treatments.
Both agents effected a clear decrease in the mitotic index of Vicia faba after both seed-soak- and root-treatments. Treatment of Vicia faba roots with a saturated solution of “Duphar” proved to be the most effective treatment, the percentage of abnormal mitoses was much higher than that induced in the case of cotton roots. Roots treated with IPC recovered more rapidly than those treated with “Duphar”. Disturbed prophases, meta- and anaphases comprised the main type of the induced abnormalities. Lagging chromosomes, multipolar anaphases, chromosome stickiness, anaphase-bridges, chromosome fragmentation, and multinucleated cells were also observed.
