| Effects of apple rhizosphere Fusarium on growth of replanted rootstock seedlings |
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| DOI：10.7606/j.issn.1000-7601.2009.02.38 |
| Key Words: apple rhizosphere replant disease Fusarium |
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| Abstract: |
| Change of Fusarium quantity in 0～80 cm layer of rhizosphere and far from the trunk 0～200 cm in Weibei dryland apple orchards was studied combining with experiment of potted rootstocks seedling to analyse Fusarium quantity effect on the growth of replanted plants in different rhizosphere soil．The results showed that Fusarium quantity got less and less with the increase of the distance from the trunk while the maximal Fusarium quantity was in 40～60 cm layer of rhizosphere；Fusarium quantity in continuous cropping soil was more than that in the field．Potted rootstock seedling grew weak in continuous cropping soil．It appeared the symptom of replant disease；Potted rootstock seedling grew weak in rhizosphere with more Fusarium．There was certain correlation between Fusarium quantity and the growth of potted rootstock seedling through correlation analysis． |