Phenological Changes of Leaf Nutrients in Vitis labrusca L. Grape Grafted on Different Rootstocks in Heavy Clay Soil Conditions | Veränderungen der Nährstoffgehalte im Blatt der Rebe (Vitis labrusca L.) auf verschiedenen Unterlagen bei Anbau auf schwerem Lehmboden in Abhängigkeit vom phänologischen Stadium
2016
Köse, Bülent | Horuz, Ayhan | Akınoğlu, Güney
The present study was conducted to determine the phenological changes in leaf nutrient contents in 10-years Vitis labrusca L. grapes grafted on 140Ru, 5BB and 5C rootstocks. In the experiment, changes of leaf macro and micro element contents from bud burst to post harvest period were investigated in the heavy clay soil conditions. Nutrient contents of leaf blades showed varied depending on the phenological stages and rootstocks (P < 0.01). P, K, Mg and Ca levels of leaf blade exhibited significant differences based on rootstocks and phenological periods between blooming and veraison. While Zn level was obtained sufficient on 5BB of grafted grapevines, it was found to be insufficient in grapevines grafted on 140Ru and 5C rootstocks. In general, grapevines were found insufficient for P, K and Mg nutrients. Total chlorophyll contents of leaves were found at high in the blooming period. Although the highest chlorophyll contents were found in the blooming period, it was determined at the lowest through to harvest. In the study, 5BB rootstock was evaluated to be favorable in terms of nutrient uptake.
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