اثر اسيدجيبرليك و 6- بنزين آدنين بر روي صفات كمي گل مريم

Effects of gibberellic acid and 6-banzil adenine on quantitative characteristics of Tuberose (Polianthes tuberosa L.)

In order to develop some quantitative characteristics in tuberose, an experiment was performed by using factorial design randomized complete blocks in Mashad Astanghods garden. In this experiment, unit corms soaked for 24 hours by gibberellic acid (GA3) and 6-banzil adenine (6-BA) each one in tour levels: 0,50 and 150 ppm and then they planted in 3 replicates in outdoor in Aptil 1382. The results of variance analysis showed that the numbers of florets per spike affected by Kind of hormones. but concentration and interaction effects of hormones and concentration had no effects. Length of spike rachis affected by concentration and interaction effects, but the kind of hormone had no effect on this characteristic. These results also showed that length of spike rachis decreased by increase concentration GA3. GA3 with 150 ppm concentration could decrease the days need for see the first spike, changed the means for this characteristic to 76 days, 6-BA with 50 and 1 00 ppm concentration for days need to see the opening florets from initiation of first spike, was better than the other treatments. The height of plant at initiation stage of spike and numbers of off-sets characteristics had no affected by concentration hormones and interaction effects. GA3 with 50 and 100 ppm concentration could changed the height of spike to 94.32 and 94.67 cm, respectively. The diameter of spike affected by hormones, concentration and interaction effects and 6-BA with 150 ppm concetration increased the diameter of spike to 7:33 mm. These hormones had no effects on number leaves at initiation of first spikes characteristic either. GA3 increased length of spike and plant height, but 6-BA increased the number of florets in each spike.