Commercial Bioinoculants Increase Root Length Colonization and Improve Petiole Nutrient Concentration of Field-grown Grapevines

Agricultural bioinoculants containing arbuscular mycorrhizal fungi represent a potential opportunity to reduce the dependence of grapevines ( Vitis ) on agrochemicals. This field study assessed ability four commercial colonize grapevine roots and their effects petiole nutrient concentration, berry composition, root morphology ‘Pinot noir’ vinifera grafted onto rootstock ‘Couderc 3309’ riparia × rupestris ‘Riesling’ V. Selection Oppenheim berlandieri ). Three increased colonization; however, regardless treatment, fungal structures were enhanced. Grapevine concentration was improved by bioinoculants. Root diameter, length density, specific with greater colonization. Using chemical fertilizers may be good strategy improve productivity health in cool climates; impact vineyard differ among scion–rootstocks, edaphoclimatic conditions, soil microbiomes.