EFFECT OF SOME TREATMENTS ON Atropa belladonna SEEDS GERMINATION

Abstract

This research was conducted at tissue culture lab./College of Agriculture/University of Baghdad during september2011. The study included treated Atropa belladonna seeds with different concentrations of HCl for different period, and using culture media contained different concentrations of GA3. The objective of using HCl and GA3 was to break the dormancy of the seeds and shorten the period of germination . Results showed that the highest percentage of germination 100% was obtained from seed treated with 50% HCl for 5 min . and cultured in media contained 0.6 mgGA 3 /litter It also showed that increasing GA 3 concentration in the media resulted increasing in the percentage of germination