Effects of different bud density on the mycorrhizal colonisation of grapevine in the Kunság wine region

Abstract

Mycorrhizal symbiosis has an important role for the grape: it helps the water - and nutrient uptake, as well as
the avoidance of biotic and abiotic stresses. During our investigation carried out on stocks grown in
Szigetcsép (Kunság wine region), we studied the effects of different bud load on the degree of mycorrhizal
colonisation. The vineyard (Gál Vineyard and Winery in Szigetcsép) is on sandy soil with low nutrient
content, thus the mycorrhizal colonisation have a great importance in this area. For the estimation of
endomycorrhizal colonisation, fine roots of the grape cultivar ’Kékfrankos’ were stained with anilin-blue,
and investigated under light microscope. Our results show significant difference of the mycorrhizal
colonisation in our experiments, however, further studies are needed in other wine regions for general
conclusions to be drawn.