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Application of Arbuscular Mycorrhizal Fungi and Compound Sodium Nitrophenolate in Tomato Seedling Growth
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- Author:
- No author available
- Journal Title:
- Chinese Journal of Applied & Environmental Biology
- Issue:
- 5
- DOI:
- 10.3724/SP.J.1145.2012.00843
- Key Word:
- AM真菌;复硝酚钠;番茄;育苗;结实率;土壤碱性磷酸酶
Abstract： 研究了温室盆栽条件下接种丛枝菌根(Arbuscular mycorrhizal,AM)真菌以及添加复硝酚钠稀释液对番茄育苗的影响.结果发现,在灭菌条件下接种AM真菌处理番茄根系AM真菌侵染率自2周起即保持在45％左右,且其地上部生物量在3周后一直显著高于不接菌对照(P＜0.05),在接菌基础上添加1.8％复硝酚钠不同倍数(1× 106、5× 106和10× 106)稀释液对番茄生长具有一定促进作用,其中以稀释5× 106倍效果最佳；育苗6周后将对照、接种AM真菌处理以及在接菌基础上添加1.8％复硝酚钠5× 106倍稀释液的幼苗各2株分别移栽到未灭菌土壤中,继续培养16周后发现,对照苗被土著AM真菌侵染,但结实率为0；菌根化苗AM真菌侵染率与土壤碱性磷酸酶活性均显著升高(P＜0.05),番茄结实率达到50％；添加复硝酚钠稀释液的菌根化苗AM真菌侵染率显著高于普通菌根化苗(P＜0.05),且与对照苗相比,土壤pH显著降低、电导率显著升高(P＜0.05),番茄结实率达到75％.结果表明,接种AM真菌对番茄育苗具有较好的促进作用,在接菌基础上添加1.8％复硝酚钠5×106倍稀释液对番茄幼苗生长和移栽后结实均具有更好的促进效果,具有推广应用价值.
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