Improvement in germination and seedling growth of Astracantha adescendens

In order to survey the effects of dormancy-breaking treatments on germination in Astracantha adescendens, a completely randomized design was implemented at four replications. Treatments were : hot water scarification with 70 degrees and 90 degrees C for 10 and 15 min, sulfuric acid scarification (15, 30 and 45 mm), seed stratification for 2,4 and 8 weeks, scarification (with hot water or acid) + seed stratification (4 week). Results showed significant differences among seed dormancy breaking methods (P<0.01). The highest germination rate and the lowest mean germination time were obtained with 90 degrees C water for 15 min+4 week stratification (83%) and 90 degrees C water for 10 min+4 week stratification (81%) treatments. Seedlings were, however, injured during 45 min acid scarification procedure.