【摘要】 在采用不同药剂处理破除嵩草种子休眠的基础上,利用高效液相色谱测定嵩草种子中脱落酸含量变化,探讨影响嵩草种子休眠的因素。结果表明:40%的NaOH处理使矮生嵩草及高山嵩草种子的发芽率达到最高,分别为56.00%和46.00%。处理前种子中的脱落酸含量分别为3.451和4.571μg/g,处理后脱落酸含量分别为1.225和1.813μg/g,分别下降了64.50%和60.34%。更多还原

【Abstract】 Germination tests have been carried out with different treatments on the seeds of Kobresia Willd and the quantity of abscisic acid before and after the treatment was determined by a HPLC method.The results showed that the germination rates of both Kobresia humilis and Kobresia pygmaea reached the highest with a treatment of 40% NaOH,which was separately 56.00% and 46.00%.The abscisic acid in the seeds was separately 3.451 μg/g and 4.571 μg/g before the treatment and after the treatment was separately 1.225 μg/g and 1.813 μg/g,which decreased separately by 64.50% and 60.34%.更多还原