铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗为什么要炼苗?
由于铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF自然繁殖力低,种子需与真菌共生才能萌发,加上长期采挖,使得野生铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF资源日渐枯竭,成为濒危植物,被列为国家重点保护的野生药材品种。为了满足市场的需求,进行了铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组织培养技术的研究,所以铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗应运而生,但是,铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗是不能直接种植的,必须要经过炼苗这一步骤。那么,铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗为什么要炼苗呢?下面小编向大家介绍铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗需要炼苗的原因。所谓的炼苗,就是让组培苗初步适应新环境的过程。其一,铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF的组培苗是在无菌实验室进行繁殖培育出来的瓶装式种苗,从瓶子移栽到大棚的过程,根部必然会不同程度地感染到细菌,引发病毒感染,以致发病和死亡,解决此问题的方法就是进行消毒。其二,组培苗刚出瓶时,根部的含水量较高,因此比较脆,此时移栽就容易导致根部损伤和折断,从而导致感染,引发死亡,而解决这个问题的办法就是让组培苗根部进行一定程度的脱水,让其软化。综合以上两点,在移栽前的铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗,通过放入一定比例的消毒液中进行适当浸泡后再阴晾,就能同时完成根部消毒和脱水的过程,达到炼苗目的。
上一篇:怎样选择铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗?
下一篇:为什么铁皮%E6%BE%B3%E9%97%A8%E5%A4%AA%E9%98%B3%E9%9B%86%E5%9B%A2%E8%91%A3%E4%BA%8B%E9%95%BF组培苗的成活率不高?
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最新更新
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推荐阅读
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