辣椒嫁接育苗应注意哪些问题?

2025-04-07 09:55:57
推荐回答(1个)
回答1:

概括起来讲,辣椒嫁接育苗应注意以下几点:
(1)要较常规育苗法提早播种的时间由于嫁接苗嫁接初期需要8~10天的成活时间,而此期的辣椒苗生长很慢,育苗时间也相应地加长,因此嫁接育苗的播种期应较常规育苗法适当提早8~10天。(2)要调节好辣椒和砧木的播种时间不同嫁接方法对辣椒和砧木的播种时间要求情况,前面已有介绍,这里主要强调的是如果辣椒苗嫁接前不进行移栽,而只是砧木苗移栽情况下,要考虑到砧木苗移栽后,由于苗子需要几天的缓苗时间,故在砧木的具体播种时间安排上,还要再加上一周左右。(3)苗茎的切口位置要正确为避免嫁接后,辣椒苗和砧木苗间的叶片互相挤碰,降低接口的接合质量,切口时,辣椒苗和砧木苗均要在苗茎不着生叶片的一侧切口。(4)要注意保护嫁接苗的接口,避免发生劈裂或折断现象嫁接苗的接口一般比较硬脆,容易折断,同时由于砧木与辣椒的苗茎切面只是愈合在一起,容易劈开。所以,在嫁接苗的管理过程中,对嫁接苗要轻拿轻放,嫁接夹也不要过早取下。(5)要确保砧木苗和辣椒苗的共生质量辣椒苗和砧木苗只有完全共生,才能互相促进,互相利用。一旦辣椒苗茎上生出自根,且根扎入地里后,由于受亲缘关系的影响,辣椒苗制造的营养,将会优先供应自根,从而不利于砧木根系的正常生长,同时也将会导致嫁接失去意义。反过来讲,如果砧木苗茎上发出了侧枝,由于受亲缘关系的影响,砧木根系吸收的水和肥也将是优先供应给自己的侧枝,从而抑制辣椒苗的正常生长。所以,一旦发现辣椒苗上长出不定根或砧木苗茎上长出侧枝后,均要及早抹掉。六、温室辣椒栽培技术

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