硬实在植物界是一种普遍存在的现象,其中最常见的是豆科植物种子。木本植物如刺槐、皂荚的种子,硬实占有很高的比率。据笔者在临沂大青山林场测定,硬实率最高达93％,最低为32％,平均为58.7％,这就大大影响其种用价值。 硬实从外部形态上如色泽浓淡和种粒大小等很难确定,一般是通过浸种检查其中不能吸胀的数目。但某些刺槐硬实却非常顽强,在40℃温水中浸泡一个多月,仍不能改变其不透水性。所以加速刺槐硬实 The hard truth is that the plant kingdom is a ubiquitous phenomenon, the most common of which is legume seeds. Woody plants, such as acacia, acacia seed, hard occupy a very high rate. According to the author measured in Linyi Daqingshan forest, hard-real rate of up to 93%, a minimum of 32%, an average of 58.7%, which greatly affect the value of their use. Hard from the external morphology, such as color shades and grain size is difficult to determine, usually by soaking seeds check which number can not be swollen. However, some locust hardy but very tenacious, soaked in warm water at 40 ℃ for more than a month, still can not change its impermeability. So accelerate Acacia hard