scholarly journals Effect of short-time irrigation with industrial poultry wastewater on young olive tree (Olea europaea L. cv. Chemlali) growth parameters and the chemical composition of leaves

2021 ◽  
Author(s):  
Amira Oueslati ◽  
Giuseppe Montevecchi ◽  
Andrea Antonelli ◽  
Hedi Ben Mansour
Keyword(s):  
Olea Europaea ◽  
Growth Parameters ◽  
Tap Water ◽  
Saturated Fatty Acids ◽  
Soluble Sugars ◽  
Olive Tree ◽  
High Concentration ◽  
Olive Trees ◽  
Poultry Wastewater ◽  
Olea Europaéa

Abstract The purpose of this study was to evaluate the short-term irrigation effect with industrial poultry wastewater on young olive trees (Olea europaea L. cv. Chemlali). Industrial poultry wastewater can be considered as a bio-fertilizer due to its richness in nutritive elements (SO42−, HCO3−, total nitrogen and K+). The physico-chemical analysis of wastewater showed a high concentration of TSS, COD, BOD, COT, NO3−, and conductivity. Measurements indicated that poultry wastewater enhanced plant growth, leaves dry matter, and ashes in comparison with tap water, as well as poultry wastewater diluted with tap water, however, a decrease in total soluble sugars (glucose and fructose) was detected in leaves. The determination of fatty acid profile of young olive trees leaves irrigated with poultry wastewater showed richness on saturated fatty acids in comparison with mono- and poly-unsaturated ones. In addition, oleic acid (C18:1) presented the lowest content in leaves of trees irrigated with poultry wastewater irrigation. According to those results, poultry wastewater lends itself to being a hydric alternative and at the same time a source of nutrients that can help fill the water deficit in semi-arid countries and avoid costly waste disposal for slaughterhouses.

scholarly journals Physiological and biochemical responses of young olive trees (Olea europaea L.) to water stress during flowering

2019 ◽  
Vol 71 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Yamani El ◽  
El Sakar ◽  
Abdelali Boussakouran ◽  
Yahia Rharrabti
Keyword(s):  
Olea Europaea ◽  
Water Regime ◽  
Soluble Sugars ◽  
Principal Component ◽  
Growing Season ◽  
Olea Europaea L ◽  
Growing Seasons ◽  
Olive Trees ◽  
Physiological And Biochemical ◽  
Olea Europaéa

This study examines physiological and biochemical changes in three Moroccan varieties of young olive trees (Olea europaea L.) grown under three different water regimes (control, moderate stress and severe stress). Leaf relative water content (RWC), water potential (yw), transpiration rate (E), stomatal conductance (gs), maximum quantum efficiency of PSII (Fv/Fm), the contents of total chlorophyll (TCC), proline (ProC) and soluble sugars (SSC) were measured at the flowering stage during three growing seasons (2015, 2016 and 2017). ANOVA analyses showed that the effect of the water regime was predominant in all of the examined parameters, except for Fv/Fm, which was under the effect of both water regime and growing season. Impacts of variety and interactions were of lesser magnitude. Water deficit reduced E, yw and gs by 25%, while its effect on RWC and Fv/Fm was a decrease of about 7%; however, increases in SSC and ProC were more than 10%. Among the growing seasons, 2015 flowering displayed the lowest values for RWC, yw, E, gs, TCC and Fv/Fm, and the highest for ProC and SSC. Among plant varieties, no significant differences were observed. The three principal component (PC) axes accounted for 91% of total variance. PC1 was better explained by the water regime, while the growing season fitted PC3 variability. Correlation studies highlighted significant associations between most parameters. Positive relationships were found between RWC, yw, E, gs, Fv/Fm and TCC, while all of these parameters were negatively linked to ProC and SSC.

Phenolic and lipophilic metabolite adjustments in Olea europaea (olive) trees during drought stress and recovery

2021 ◽  
Vol 185 ◽  
pp. 112695
Author(s):  
Maria Celeste Dias ◽  
Diana C.G.A. Pinto ◽  
Catarina Figueiredo ◽  
Conceição Santos ◽  
Artur M.S. Silva
Keyword(s):  
Drought Stress ◽  
Olea Europaea ◽  
Olive Trees ◽  
Olea Europaéa

EFFECT OF DIFFERENT IRRIGATION REGIMES ON OLIVE TREE (OLEA EUROPAEA L., 'KORONEIKI') PHYSIOLOGY, YIELD AND FRUIT QUALITY

2011 ◽  
pp. 89-94 ◽  
Author(s):  
G. Psarras ◽  
I. Kasapakis ◽  
E. Stefanoudaki ◽  
I. Papadakis ◽  
K.S. Chartzoulakis
Keyword(s):  
Fruit Quality ◽  
Olea Europaea ◽  
Olive Tree ◽  
Olea Europaea L ◽  
Irrigation Regimes ◽  
Olea Europaéa

Phenological growth stages of olive trees (Olea europaea)

2002 ◽  
Vol 140 (2) ◽  
pp. 151-157 ◽  
Author(s):  
F SANZ-CORTES ◽  
J MARTINEZ-CALVO ◽  
M L BADENES ◽  
H BLEIHOLDER ◽  
H HACK ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Growth Stages ◽  
Olive Trees ◽  
Olea Europaéa

scholarly journals Tenuipalpid mites (Acari: Tenuipalpidae) of Olea europaea with a key to Brevipalpus from the genus Olea

2017 ◽  
Vol 4 ◽  
pp. 23
Author(s):  
Ε.Ν. Hatzinikolis
Keyword(s):  
Olea Europaea ◽  
Olive Trees ◽  
Olea Europaéa

This paper deals with the tenuipalpid mites which are associated with olive trees and an account is given of their distribution, hosts, and bio-ecology. A key is provided to the species of Brevipalpus occurring on the genus Olea.

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