Combined effects of deficit irrigation and crop level on early nectarine trees
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AuthorRosa Sánchez, José María de la; Conesa Saura, María del Rosario; Domingo Miguel, Rafael; Aguayo Giménez, Encarnación Pilar; Falagán Sama, Natalia; [et al.]
Knowledge AreaProducción Vegetal
SponsorsThis work was supported by the Spanish Ministry of Science and Innovation (AGL2010-19201-C04-04) and European project LIFE+IRRIMAN (LIFE13 ENV/ES/000539). María R. Conesa acknowledgesher FPU fellowship from the Spanish Ministry of Education. Wethank the Frutas Esther SA Company for allowing us to use theirfacilities to carry out the tests.
Bibliographic CitationDe la Rosa, JM., et al., Combined effects of deficit irrigation and crop level on early nectarine trees. Agric. Water Manage. (2016), http://dx.doi.org/10.1016/j.agwat.2016.01.012
Water stress integral
A three-year long experiment was implemented in an early nectarine (Prunus persica L. Batsch cv. Flanoba) commercial orchard to evaluate the effects of deficit irrigation and different crop levels on vegetative growth, plant water status, and fruit yield and quality. Three irrigation treatments were assessed: (i)control, full irrigation (TCTL); (ii) normal practice of the farmer (TFRM); and (iii) regulated deficit irrigation (TRDI), which involved irrigating the crop at the same level as the control (TCTL) during the critical periods of the first year and at 60% TCTL during postharvest. In the last two growing seasons the irrigation was scheduled to maintain the signal intensity (SI) of maximum daily trunk shrinkage (SIMDS= MDSTRDI/MDSTCTL) at different water stress levels depending on the phenological stage: SI = 1.0 (non-water stress) and SI = 1.4(moderate water stress). Besides, during the last two seasons, the interactions between TCTL and TRDI were studied at five different crop ...
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