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Water deficit effects on grapevine woody tissue pigmentations

Author

Listed:
  • D. Grossi

    (Università degli Studi di Milano, DISAA - Dipartimento di Scienze Agrarie e Ambientali, Milano, Italy)

  • L. Rustioni

    (Università degli Studi di Milano, DISAA - Dipartimento di Scienze Agrarie e Ambientali, Milano, Italy)

  • G. Simone Di Lorenzo

    (Università degli Studi di Milano, DISAA - Dipartimento di Scienze Agrarie e Ambientali, Milano, Italy)

  • O. Failla

    (Università degli Studi di Milano, DISAA - Dipartimento di Scienze Agrarie e Ambientali, Milano, Italy)

  • L. Brancadoro

    (Università degli Studi di Milano, DISAA - Dipartimento di Scienze Agrarie e Ambientali, Milano, Italy)

Abstract

Water availability is an important environmental factor in viticulture. In a climate change context, vineyard management should be adapted to the new conditions. Drought-resistant rootstocks need to be selected. In this paper, reflectance spectroscopy is proposed as a new method to characterize the water stress effects on woody section pigmentations. Cabernet Sauvignon grafted on 4 different rootstocks (140Ru, 420A, M2 and M3) represented the plant material. Greenhouse controlled conditions allowed the comparison of well-watered (WW) and water-stressed (WS) plants. The physiological responses were characterized concerning daily water consumption, stem water potential, gas exchange, and plant growth. The water use efficiency was calculated and discussed as well. Spectroscopy analyses of woody sections indicated a major absorption band probably related to phenolic derivatives. Water stress produced characteristic spectrum modifications both in the Cabernet Sauvignon stem and in the rootstock xylem. These preliminary results encourage further studies addressed at the evaluation of drought-resistant genotypes, to distinguish their stress responses and to characterize the compositional aspects linked to drought tolerance.

Suggested Citation

  • D. Grossi & L. Rustioni & G. Simone Di Lorenzo & O. Failla & L. Brancadoro, 2016. "Water deficit effects on grapevine woody tissue pigmentations," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 43(4), pages 188-194.
    • Handle: RePEc:caa:jnlhor:v:43:y:2016:i:4:id:186-2015-hortsci
    DOI: 10.17221/186/2015-HORTSCI
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    References listed on IDEAS

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    1. Medrano, Hipólito & Pou, Alicia & Tomás, Magdalena & Martorell, Sebastià & Gulias, Javier & Flexas, Jaume & Escalona, José M., 2012. "Average daily light interception determines leaf water use efficiency among different canopy locations in grapevine," Agricultural Water Management, Elsevier, vol. 114(C), pages 4-10.
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