AM真菌对草莓的接种效应研究

为了给草莓(Fragaria ananassa)菌根化育苗提供依据,以摩西球囊霉(Glomus mosseae)为接种剂,研究了在土壤灭菌和非灭菌条件下,AM真菌对草莓生长、果实品质、植株和土壤中氮、磷含量的影响。结果表明:接种AM真菌后,草莓叶片个数、根长、株高有明显提高,并且地上部分干重在灭菌和非灭菌条件下,分别提高了15.9%和2.77%;提早开花2~3 d,果实提前成熟4~5 d;果实的单果重和Vc含量明显提高,有机酸含量明显下降;组织中氮、磷含量均有提高;明显提高了土壤中碱解N、速效P的利用率。与对照组相比,土壤灭菌条件下,AM真菌对草莓的促生作用较非灭菌处理更明显。

Inoculation effect of arbuscular mycorrhizal fungi for strawberry

In order to provide the basis of strawberry seedlings, strawberry in sterilized and nonsterilized soil were inoculated with Glomus mosseae in the pot culture, and the influence of AM fungi on the growth, quality of fruit, the content of N and P in the soil and plant investigated. The results showed that after AM fungi were inoculated, the leaf number, root length, stem height of host plant were improved markedly, and the dry weight was improved by 15.9% and 2.77%, respectively. The blossom date were shortened by 2- 3 days, the ripening date were shortened by 4- 5 days. The weight per fruit and Vc content were increased distinctly, the organic acid content was dropped markedly. The contents of N and P in the plant were improved; the utilization of alkali solution N and available P in the soil were increased notably. Compared with the blank group, the inoculation effect of AM fungi was obvious, when the soil was sterilized.