Our purpose is to investigate dandelion seeds quality,seedling morphological and the effect of physiological and biochemical by the artificial aging methods.The results are as follows:1) the seed vitality was decrease to zero after storage for more than 11 months;With the extension of aging time,the germination percentage were reduced gradually,while seed germination potential had different results;2) the seedlings with methanol aging treatment had the best quality,the high temperature and high humidity aging treatment took the second place,the normal treatment showed the worst;3) the soluble sugar content of normal development dandelion seedling were the highest in leaves;With increasing aging time,soluble sugar content gradually reduce by the high temperature and high humidity treatment,while opposite to the of methanol treatment;the plants of methanol aging process 1.5 h had the highest total chlorophyll,and reached significant difference to other treatments,with the extension of aging time,the total chlorophyll was gradually increase;for catalase activity,1.5 h seedlings methanol aging treatment was about 10.2 times than the normal processing seedlings,with the extension of aging time,catalase activity has experienced a process of plunging and surge in methanol process of seeds;while high temperature and high humidity aging treatment of catalase activity was gradually reduced.
NETL
NSTL
万方数据
维普
