野皂荚种子催芽技术研究

摘要

野皂荚( Gleditsia microphylla)种子具有坚硬的种皮,自然状态下不易发芽. 通过对其种子进行酸蚀处理(用浓度为98%,75%,50%的浓H2 SO4 分别酸蚀15 min,25 min,35 min,45 min)和高温水浴处理(恒温50 ℃, 70 ℃,90℃条件下分别水浴5 min,10 min) ,测定其发芽率、发芽势、吸涨率. 试验结果表明:采用98%浓H2 SO4 酸蚀野皂荚种子25 min,萌发效果最佳,发芽率、发芽势和吸涨率分别为86%,73%,100%.采用恒温水浴的方法处理野皂荚种子,发芽率均≤50%,萌发效果不理想.%Gleditsia microphylla with a hard seed coat, germinated difficultily in the natural state.By using concentrated sulfuric acid at a concentration of 98%, 75%, 50%, corrosion by 15 minutes, 25 minutes, 35 minutes, 45 minutes and using constant temperature 50℃,70℃,90℃bath were 5 minutes, 10 minutes to measure germination rate, germination potential, imbibition rate.The results showed that using concentrated sulfuric acid at a concentration of 98%corrosion by 25 minutes could make ger-mination best,its germination rate,germination potential,imbibition rate were 86%, 73%, 100%.Its germination rate was all less than or equal 50%by using constant temperature water bath and the germination result was poor.