Koundouras Stefanos, Hatzidimitriou Effimia, Karamolegkou Margarita, Dimopoulou Eirini, Kallithraka Stamatina, Tsialtas John T, Zioziou Eleftheria, Nikolaou Nikolaos, Kotseridis Yorgos
Laboratory of Viticulture, School of Agriculture, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
J Agric Food Chem. 2009 Sep 9;57(17):7805-13. doi: 10.1021/jf901063a.
Compositional changes of skin and seed phenolic compounds and berry glycosylated aroma precursors were measured in Vitis vinifera L. cv. Cabernet Sauvignon onto 1103P and SO4 rootstocks, in three irrigation regimes (FI, 100% of evapotranspiration; DI, 50% of evapotranspiration; and NI, non-irrigated). The study was conducted in a commercial vineyard of central Greece, in a factorial experiment during two growing seasons (2005-2006). Grape samples were obtained at commercial harvest. The deficit water supply decreased berry size but did not affect the skin/pulp weight ratio. Water limitation, especially pre-veraison, caused a substantial increase of skin anthocyanin concentration, and this effect was independent of water deficit-induced reductions in berry size and vine vigor. Among individual anthocyanins, malvidin-3-O-glucoside was mostly affected by water supply. The rootstock genotype did not affect berry growth parameters and skin polyphenol concentrations. The irrigation regime (mainly post-veraison) and rootstock genotype affected total flavan-3-ol monomers in seed tissue, mainly as a result of variations in the catechin amount. The lower seed phenolic concentration was found in non-irrigated and SO4-grafted vines, probably as a result of the restriction of scion vigor caused by these treatments, thereby altering cluster exposure. Skin and seed tannins were not affected by either rootstock or irrigation. The limited water supply was associated with increased aroma potential at harvest.
在希腊中部一个商业葡萄园，于2005 - 2006年两个生长季节进行析因试验，以1103P和SO4为砧木，研究了酿酒葡萄品种赤霞珠在三种灌溉方式（充分灌溉FI，蒸发散量的100%；亏缺灌溉DI，蒸发散量的50%；非灌溉NI）下，果皮和种子酚类化合物以及浆果糖基化香气前体的成分变化。在商业采收期采集葡萄样品。水分供应不足减小了浆果大小，但未影响皮/肉重量比。水分限制，尤其是在转色前，导致果皮花青素浓度大幅增加，且这种影响与水分亏缺引起的浆果大小和葡萄树活力降低无关。在单个花青素中，矢车菊素 - 3 - O - 葡萄糖苷受水分供应影响最大。砧木基因型不影响浆果生长参数和果皮多酚浓度。灌溉方式（主要是转色后）和砧木基因型影响种子组织中总黄烷 - 3 - 醇单体，主要是由于儿茶素含量的变化。在非灌溉和SO4嫁接的葡萄藤中发现种子酚类浓度较低，可能是由于这些处理导致接穗活力受限，从而改变了果穗的受光情况。果皮和种子单宁均不受砧木或灌溉的影响。有限的水分供应与采收时香气潜力增加有关。
