IDEAS home Printed from https://ideas.repec.org/a/eee/agiwat/v169y2016icp106-114.html
   My bibliography  Save this article

Water stress improves whole-canopy water use efficiency and berry composition of cv. Sangiovese (Vitis vinifera L.) grapevines grafted on the new drought-tolerant rootstock M4

Author

Listed:
  • Merli, M.C.
  • Magnanini, E.
  • Gatti, M.
  • Pirez, F.J.
  • Pueyo, I. Buesa
  • Intrigliolo, D.S.
  • Poni, S.

Abstract

Testing of new rootstocks for drought tolerance targets traditionally rain-fed districts where supplemental irrigation is more frequently needed due to the pressures of global warming. A seasonal evaluation of whole-canopy gas exchange, water-use efficiency (WUEc), yield components and compositional traits of Vitis vinifera cv. Sangiovese grafted to the new drought-tolerant genotype M4 against the commercial SO4 stock is reported. The experiment was conducted in 2015 on twelve four-year-old, fruiting potted Sangiovese grapevines grafted on M4 and SO4 stocks and assigned to SO4-WW (well-watered), SO4-WS (water-stressed), M4-WW and M4-WS treatments. Water deficit was imposed pre-veraison by reducing water supply to 50% of whole-canopy demand derived from concurrent measurements of transpiration in WW and maintained until three weeks after veraison prior to full rewatering. While WUEc was unchanged in WS-SO4 as compared to WW-SO4, WUEc in WS-M4 increased by 22% vs. WW-M4 over the whole water deficit period and such gain was partially maintained upon rewatering. Higher WUEc in WS-M4 resulted from an ability to maintain canopy photosynthesis similar to WS-SO4 at a reduced water use. Although yield per vine was similarly reduced in the two WS treatments (about 1kg less than WW), overall grape composition was improved in WS-M4 and worsened in WS-SO4 when compared to the WW controls. Total soluble solids (°Brix) rose by 11% in WS-M4 vs. the respective control, whereas in WS-S04 there was a slight decrease (−0.6 Brix). Most notably, anthocyanins accumulation was largely limited in vines grafted on SO4 (−45% vs. WW-SO4 when given on a concentration basis), while in M4-grafted plants berry pigmentation slightly improved vs. WW (+12.5%). Hypothesis is made that grafting onto different stocks can trigger differential gene regulation under water stress and high temperatures leading to different sensitivity in synthesis and/or degradation of already formed anthocyanins.

Suggested Citation

  • Merli, M.C. & Magnanini, E. & Gatti, M. & Pirez, F.J. & Pueyo, I. Buesa & Intrigliolo, D.S. & Poni, S., 2016. "Water stress improves whole-canopy water use efficiency and berry composition of cv. Sangiovese (Vitis vinifera L.) grapevines grafted on the new drought-tolerant rootstock M4," Agricultural Water Management, Elsevier, vol. 169(C), pages 106-114.
    • Handle: RePEc:eee:agiwat:v:169:y:2016:i:c:p:106-114
    DOI: 10.1016/j.agwat.2016.02.025
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378377416300646
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.agwat.2016.02.025?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Long, Kaisheng & Pijanowski, Bryan C., 2017. "Is there a relationship between water scarcity and water use efficiency in China? A national decadal assessment across spatial scales," Land Use Policy, Elsevier, vol. 69(C), pages 502-511.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:agiwat:v:169:y:2016:i:c:p:106-114. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/agwat .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.