Physiological responses of almond trees under regulated deficit irrigation using saline and desalinated reclaimed water

2021 ◽  
Vol 258 ◽  
pp. 107172
Author(s):  
Gaetano Alessandro Vivaldi ◽  
Salvatore Camposeo ◽  
Cristina Romero-Trigueros ◽  
Francisco Pedrero ◽  
Gabriele Caponio ◽  
...  
Keyword(s):  
Deficit Irrigation ◽  
Physiological Responses ◽  
Reclaimed Water ◽  
Regulated Deficit Irrigation ◽  
Almond Trees

Using saline reclaimed water on almond grown in Mediterranean conditions: deficit irrigation strategies and salinity effects

2019 ◽  
Vol 19 (5) ◽  
pp. 1413-1421 ◽  
Author(s):  
Gaetano Alessandro Vivaldi ◽  
Salvatore Camposeo ◽  
Giuseppe Lopriore ◽  
Cristina Romero-Trigueros ◽  
Francisco Pedrero Salcedo
Keyword(s):  
Tree Growth ◽  
Deficit Irrigation ◽  
Management Practices ◽  
Water Productivity ◽  
Maximum Yield ◽  
Control Treatment ◽  
Irrigation Season ◽  
Regulated Deficit Irrigation ◽  
Trunk Diameter ◽  
Almond Trees

Abstract The main objective of this study was to acquire agronomic knowledge about the effects of irrigation with saline reclaimed (RW) and desalinated DESERT (DW) water and different irrigation strategies: control full irrigation (FI) and regulated deficit irrigation (RDI) on leaf nutrients, tree growth and fruit quality and yield of almond trees in pots. Our results showed that RW had the highest concentration of some valuable agronomic nutrients such as N, but also of phytotoxic elements (Na and Cl−). Na leaf concentration on RW treatments reached toxic levels, especially under RDI, and toxicity symptoms were shown. Regarding tree growth, cumulate trunk diameter on RW-RDI was significantly lower than on the control treatment and shoot growth was reduced from the beginning of the irrigation season in RW treatments. Maximum yield was reached on RW-FI, 18% higher than the control treatment. However, RDI strategies influenced negatively on yield, being 23% less in RW and 7% less in DW although water productivity was not significantly reduced by water stress. These findings manifest that the combination of RW and RDI can be a promising future practice for almond irrigation, but long-term studies to establish suitable management practices must be developed.

Economic feasibility of implementing regulated deficit irrigation with reclaimed water in a grapefruit orchard

2016 ◽  
Vol 178 ◽  
pp. 119-125 ◽  
Author(s):  
J.F. Maestre-Valero ◽  
B. Martin-Gorriz ◽  
J.J. Alarcón ◽  
E. Nicolas ◽  
V. Martinez-Alvarez
Keyword(s):  
Deficit Irrigation ◽  
Reclaimed Water ◽  
Economic Feasibility ◽  
Regulated Deficit Irrigation

scholarly journals Photosynthesis and cell respiration modulated by water deficit in grapevine (Vitis vinifera L.) cv. Cabernet Sauvignon

2009 ◽  
Vol 21 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Sílvia A. Martim ◽  
Mirella P. Santos ◽  
Anderson L. Peçanha ◽  
Celso Pommer ◽  
Eliemar Campostrini ◽  
...  
Keyword(s):  
Water Potential ◽  
Water Deficit ◽  
Leaf Water Potential ◽  
Deficit Irrigation ◽  
Physiological Responses ◽  
Leaf Water ◽  
Cabernet Sauvignon ◽  
O2 Consumption ◽  
Cell Respiration ◽  
Regulated Deficit Irrigation

Winegrape productivity and quality has been related to the regulated deficit irrigation, with important implications for the plant bioenergetics. When water deficit is imposed to grapevine plants, alterations in overall photosynthesis and cell respiration are observed. The aim of this study was to assess the modulations promoted by water stress on photosynthesis and respiration in leaves of the cv. Cabernet Sauvignon (cv. CS) for better understanding the physiological responses related to its drought tolerance and quality improvement under water deficit. For this purpose, measurements of photosynthetic efficiency, leaf water potential, gas exchange and O2 consumption were carried out. Leaf water potential, photosynthesis, stomatal conductance, transpiration and internal carbon concentration were significantly reduced upon stress, suggesting that plants of cv. CS present higher water use efficiency (A N/E) and lower carboxylative capacity (A N/Ci) under this condition. On the other hand, cell respiration increased more than 70 % as estimated by the increase of O2 consumption measured 12 days after suspension of irrigation. Most of this effect was related to a four-fold increase of the mitochondrial alternative oxidase (AOX) activity. These data indicate a key role for the AOX pathway in the physiological responses of grapevines to water deficit, and it implies that analyses of the AOX activation patterns should be useful for programs aiming to improve the consistency of fruit production and quality of winegrape cultivars by regulated deficit irrigation.

Response of young ‘Star Ruby’ grapefruit trees to regulated deficit irrigation with saline reclaimed water

2015 ◽  
Vol 158 ◽  
pp. 51-60 ◽  
Author(s):  
F. Pedrero ◽  
J.F. Maestre-Valero ◽  
O. Mounzer ◽  
P.A. Nortes ◽  
R. Alcobendas ◽  
...  
Keyword(s):  
Deficit Irrigation ◽  
Reclaimed Water ◽  
Young Star ◽  
Regulated Deficit Irrigation

scholarly journals Regulated deficit irrigation in potted Dianthus plants: Effects of severe and moderate water stress on growth and physiological responses

2009 ◽  
Vol 122 (4) ◽  
pp. 579-585 ◽  
Author(s):  
Sara Álvarez ◽  
Alejandra Navarro ◽  
Sebastián Bañón ◽  
M. Jesús Sánchez-Blanco
Keyword(s):  
Water Stress ◽  
Deficit Irrigation ◽  
Physiological Responses ◽  
Regulated Deficit Irrigation

Physiological and agronomic mandarin trees performance under saline reclaimed water combined with regulated deficit irrigation

2014 ◽  
Vol 146 ◽  
pp. 228-237 ◽  
Author(s):  
F. Pedrero ◽  
J.F. Maestre-Valero ◽  
O. Mounzer ◽  
J.J. Alarcón ◽  
E. Nicolás
Keyword(s):  
Deficit Irrigation ◽  
Reclaimed Water ◽  
Regulated Deficit Irrigation

MANDARIN PERFORMANCE UNDER REGULATED DEFICIT IRRIGATION USING SALINE RECLAIMED WATER

2014 ◽  
pp. 327-334 ◽  
Author(s):  
F. Pedrero ◽  
J.J. Alarcón ◽  
E. Nicolás ◽  
O. Mounzer
Keyword(s):  
Deficit Irrigation ◽  
Reclaimed Water ◽  
Regulated Deficit Irrigation
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