Effects of Temperature and Light on Seed Germination of Four Potentilla Species
Potentilla supine,Potentilla multicaulis,Potentilla kleiniana and Potentilla longifolia were used as experimental materials,darkness was set for 12 h,light was set for 12 h temperature was 15,20,25,30℃,respectively,and total darkness was set at 25℃,the effects of temper-ature and light on seed germination were studied.The results showed that the optimal germination temperature was 25℃ for Potentilla supine and Potentilla longifolia,the optimal germination temperature was 25-30℃ for Potentilla multicaulis,the optimal germination temperature was 20℃ for Potentilla kleiniana.Dark inhibited the seed germination of Potentilla supine and Potentilla longifolia,but dark had no effect on seed germination of Potentilla multicaulis.
万方数据
维普
