ELMAN BAHAR, Alain CARBONNEAU, İlknur Korkutal

Vine and Berry Responses to Severe Water Stress in Different Stages in cv Syrah (Vitis vinifera L.)

This experiment was carried out during the 2009 growing season in order to evaluate the ecophysiology and quality characteristics of cv. Syrah (Vitis vinifera L.) grafted onto SO4 in the ECOTRON vineyard in Montpellier SupAgro/INRA in France. The aim of this study was to analyse the effect of sudden and severe water stress (SWS) on the ecophysiological changes, volume losses and shrivellings in grape berries. Also possibilities of existence of recovery, and its possible relationship with SWS and final grapes composition at different phenological stages in cv. Syrah were studied. Three water regime levels; Control (only very mild water stress) and 2 severe water stress levels, SWS1 and SWS2 were established depending on the Ψpd. Stressed periods were started at the BV, MM and EM phenological stages. A randomized block design was used. The experimental plots consisted of 54 vines totally. All data analyses were performed with MSTAT-C Statistical Software (Michigan State University) and LSD tests were done for significant differences of measured traits between groups. Minimum Ψpd values in BV were -0.28MPa, -1.79MPa, -2.16MPa¸ in MM were -0.14MPa; -1.58MPa, -2.72MPa, in EM were -0.16MPa; -2.37MPa, -2.76MPa for Control, SWS1 and SWS2 respectively. Notice that such low predawn total leaf water potential are really exceptional, and at that level the regulation of the osmotic potential is critical. In the berry volume a limited recovery determined after about 13.00- 26.00% volume loss for SWS1 and SWS2 respectively along stressed periods. At harvest; berry volume (cm3 ), 100- berry weight (g), total soluble solids (°Brix), pH, total acidity (g tartaric acid L-1 ), Tartaric acid (g L-1 ), K (g L-1 ), TPI and Anthocyanins (mg L-1 ) were analysed. Berry volume loss rate (%) and mg sugar per 1g berry were calculated. SWS had a negative effect on the sugar per 1g berry, 100 berry weight, berry volume, TSS and positive effect on the anthocyanin concentrations and TPI at three phenological stages. This can open new ways for irrigation monitoring in combination with too high berry sugar content due to the climate change.

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Anonymous, 2007. Détermination d’Anthocyanes en échantillons de raisin. Mode opératoire MO-LAB-23 UE Pech Rouge INRA-France. 1-2.

Bahar, E. and A.S. Yasasin, 2010. The yield and berry quality under different soil tillage and clusters thinning treatments in grape (Vitis vinifera L.) cv. Cabernet-Sauvignon. African J Agric Res., 5(21): 2986-2993.

Bahar, E., A. Carbonneau and I. Korkutal, 2011a. The effect of extreme water stress on leaf drying limits and possibilities of recovering in three grapevine (Vitis vinifera L.) cultivars. African J Agric Res., 6(5): 1151-1160.

Bahar, E., Carbonneau A. and I. Korkutal, 2011b. The Effect of Lag Phase Water Stress on Berry Shrivelling and Recovering After Irrıigation in cv. Cabernet-Sauvignon (Vitis vinifera L.) 17th International Symposium GiESCO 2011 Asti - Alba, Italy August 29th - September 2nd

Bahar, E., I. Korkutal and A. Carbonneau, 2012. Lag phase water stress effect on berry shrivelling and recovering in cv. Chardonnay (Vitis vinifera L.) Bulletin de l’OIV, 85(974-975-976): 141-154.

Carbonneau, A. 1998. Aspects qualitatifs, 258-276. In Tiercelin, JR (Ed.), Traite d’irrigation. Tec & Doc. Lavosier Ed., Paris, p. 1011.

Carbonneau, A. 2001. Gestion de l’eau dans le vignoble: théorie et pratique. CR GESCO 12 (Comité de Lecture), tome. ‘J. Professionale’, pp. 3-21.

Carbonneau, A. and E. Bahar, 2009. Vine and berry responses to contrasted water fluxes in Ecotron around Veraison. Manipulation of berry shrivelling and consequences on berry growth, sugar loading and maturation.

Proceedings of the 16th International GiESCO Symposium. July 12-15, University of California, Davis, USA. pp. 145-155.

Cemeroglu, B. 2007. Food Analyses. Food Technology Ass. Publication. Number 34, Ankara.

Coipel, J., L.B. Rodriguez, C. Sipp and C. Van Leeuwen, 2006. Terroir effect, as a result of environmental stress, depends more on soil depth than on soil type (Vitis vinifera L. cv. Grenache noir, Cotes du Rhone, France, 2000). J Int. Sci. Vigne Vin., 40(4): 177-185.

De La Hera Orts, M.L., A. Martinez-Cutillas, J.M. Lopez-Roca and E. Gomez - Plaza, 2005. Effect of moderate irrigation on grape composition during ripening. Spanish J. Agric. Res., 3(3): 352-361.

Deloire, A., A. Carbonneau, Z. Wang and H. Ojeda, 2004. Vine and water, a short review. J. Int. Sci. Vigne Vin., 38(1): 1-13.

Deloire, A., H. Ojeda, O. Zebic, N. Bernard, J.J. Hunter and A. Carbonneau, 2005. Influence de l’etat hydrique de la vigne sur le style de vin. Le Progres Agricole et Viticole, 122(21): 455-462.

Eichhorn, K.W. and D.H. Lorenz, 1977. Phenological development stages of the grapevine. Nachrichtenbl. Dt. Pflanzenschutzd, 29: 119- 120.

Escalona, J.M., J. Flexas, J. Bota and H. Medrano, 2003. Distribution of leaf phytosynthesis and transpiration within grapevine canopies under different drought conditions. Vitis, 42(2): 57- 64.

Gawel, R., A. Ewart and R. Cirami, 2000. Effect of rootstock on must and wine composition and the sensory properties of Cabernet Sauvignon grown at Langhorne Creek, South Australia. Aust. N.Z. Wine Ind. J., 15: 67-73.

Jones, J.A. 1990. Valuable information from accurate crop estimation. Adelaide. Aust. Grapegrow. Winemaking, (316): 59-60.

Kok, D. and E. Bahar, 2015. Effects of different vineyard altitudes and grapevine directions on some leaf characteristics of cv. Gamay (Vitis vinifera L.). Bulgarian J Agric Sci., 21(2): 320- 324.

Kok, D. and E. Bal, 2017. Chemical and nonchemical thinning treatments influence berry growth and composition of cv. Shiraz wine grape (V. vinifera L.). Erwerbs-Obstbau Doi 10.1007/s10341-017-0321-2.

Korkutal, I., A. Carbonneau and E. Bahar, 2011. Effects of early water stress levels on berry set and berry development in Merlot cv. (Vitis vinifera L.). African J Biotech., 10(71): 15921- 15932.

Kotseridis, Y., A. Georgiadou, P. Tikos, S. Kallithraka and S. Koundouras, 2012. Effects of severity of post-flowering leaf removal on berry growth and composition of three red Vitis vinifera L. Agric Food Chem. 13; 60(23): 6000-10.

Ojeda, H., A. Deloire and A. Carbonneau, 2001. Influence of water deficits on grape berry growth. Vitis, 40(3): 141-145.

Ribereau-Gayon, P. 1970. Determination of total phenols in red wines Chim. Anal. (Paris), 52: 627-631.

Rogiers, S., A. Deloire, J. Smith and S. Tyreman, 2015. Monitoring vine water status, Part:1 Some physiological principles. Grapevine management guide 2014-15 NSW Government Department of Primary Industries 16-19.

Scholander, P.F., H.T. Yamel, E.D. Bradstreet and E.A. Hemmingsen, 1965. Sap pressure in vascular plants. Science, 148: 339-346.