【摘要】 采用了石英砂和砂纸摩擦、氢氧化钠溶液浸种、热水浸种、浓硫酸浸种和浓硝酸浸种等5种不同方法对任豆种子进行处理,并对不同处理方式所得到的数据进行比较分析。结果表明:利用石英砂和砂纸摩擦,不仅可以明显改善种皮的通透性,提高任豆种子的发芽势和发芽率,而且操作简便,设备简单,无污染,是一种值得考虑的方法;采用不同浓度的硫酸浸种,种子的吸水性能得到明显的改善,尤其是用浓硫酸浸种30 min,任豆种子的发芽率可高达99.0%,但废酸的处理比较麻烦,成本较高,并且有一定的环境风险;用80℃的热水浸种,其发芽率也较高,可达75.0%;用浓度为30%的氢氧化钠溶液浸种,任豆种子的发芽率没有显著的变化;用浓硝酸处理,随着处理时间的增加,发芽率逐步增加,浸种时间为30 min的发芽率最高(45.5%)。当浸种时间大于30 min时,任豆种子的发芽率反而有所下降。综合成本、技术难度及环境风险等因素考虑,热水浸泡处理方法,可作为任豆种子发芽处理的首选方法。更多还原

【Abstract】 In this experiment,the Zenia insignis seeds were dealt with five methods including rubbing with fine sand and sandpaper,caustic soda solution immersion,hot water immersion,sulfuric acid immersion and aqua fortis immersion,the datas which obtained from different treatments were analysed.The results show that treatment by rubbing with fine sand and sandpaper not only can improve the permeability of the seed shell obviously and enhance seed’s germination percentage and germination tendency,but also the operation is easy,the equipment is simple,without pollution,it is a method worth considered.The seed’s water permeability was improved obviously by treatment with different density sulfuric acid immersion.Especially in treatment by strong sulfuric acid for 30min,the seed’s germination percentage reach as high as 99.0%.But there is troublesome and environment risk with handling the abandoning sulfuric acid,the cost is high.The seed’s germination percentage is also higher of the treatment by soaking seeds with hot water at 80℃,may reach 75.0%.There is no remarkable change of seed’s germination percentage of the treatment by caustic soda solution immersion with density at 30%.The seed’s germination percentage increases gradually along with time extension of the treatment by aqua fortis immersion,the seed’s germination percentage is the highest by soaking seeds for 30min,may reach 45.0%.Considering on comprehensive factors such as cost,technical difficulty and environment risk and so on,we think the treatment by soaking seeds with hot water is the best method.更多还原