Water stress during the post-harvest period affects new root formation but not starch concentration and content in Chardonnay grapevine (Vitis vinifera L.) perennial organs
Visualitza/Obre
Data de publicació
2019-02-15ISSN
0304-4238
Resum
Water stress responses during the post-harvest period were evaluated in a Chardonnay container-grown grapevines grafted onto 1103 Paulsen rootstock. The irrigation treatments were: a control treatment (C) (irrigated to match ETC demands) and a water stress treatment (WS) (irrigated when midday stem water potential reached a -1.1 MPa threshold). Photosynthesis, biomass and carbohydrate content were determined on five vines in each treatment on specific dates, from harvest until leaf fall. Stressed vines reduced leaf area due to defoliation, while well-watered vines had a higher carbon accumulation allowing the formation of new roots during the post-harvest period. No dry biomass accumulation was observed in the shoot and trunk organs after fruit harvest. Starch concentration and content were not affected by water stress. At the end of the experiment, starch concentrations were lower in the shoots and trunk than in the roots. Water stress induced a variation on biomass accumulation between above and below ground perennial organs, with the roots being the main organs in which biomass and starch concentrations were accumulated and kept, respectively.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
English
Matèries (CDU)
634 - Horticultura. Viticultura
Pàgines
29
Publicat per
Elsevier
Publicat a
Scientia Horticulturae
Citació
Prats-Llinàs, Maria Teresa, Omar García-Tejera, Jordi Marsal, and Joan Girona. 2019. "Water Stress During The Post-Harvest Period Affects New Root Formation But Not Starch Concentration And Content In Chardonnay Grapevine (Vitis Vinifera L.) Perennial Organs". Scientia Horticulturae 249: 461-470. Elsevier BV. doi:10.1016/j.scienta.2019.02.027.
Número de l'acord de la subvenció
INIA/Programa Nacional de Proyectos de Investigación Fundamental/RTA2012-00059-C02-01/ES/Manejo del riego deficitario en olivo superintensivo en el norte de España/
Programa
Ús Eficient de l'Aigua en Agricultura
Aquest element apareix en la col·lecció o col·leccions següent(s)
- ARTICLES CIENTÍFICS [2831]
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