CYTOLOGICAL EFFECTS OF PESTICIDES .3. MEIOTIC EFFECTS OF N-METHYL-1-NAPHTHYL CARBAMATE SEVIN

The meiotic effects of the insecticide N-methyl-1-naphthyl-carbamate “Sevin” were tested by spraying flower buds of Vicia faba plants of different ages with the insecticidal solution for different periods of time, recovery experiments were also conducted. It was found that the percentage of abnormal PCM's increased by increasing the No. Of sprays then decreased by increasing the time of recovery. Stickiness lagging chromosomes, and other irregularities were effected by “Sevin” in meiosis. Polyploid PMC's were also induced by different treatments with “Sevin”. The different treatments with “Sevin” did not induce pollen sterility. © 1968, Japan Mendel Society, International Society of Cytology. All rights reserved.