Physiological and biochemical responses to water deficit and recovery of two olive cultivars (Olea europaea L., Arbequina and Empeltre cvs.) under Mediterranean conditions

2021 ◽  
Author(s):  
Amira Melaouhi ◽  
Elena Baraza ◽  
José M. Escalona ◽  
Hanan El-AouOuad ◽  
Imen Mahjoub ◽  
...  
Keyword(s):  
Water Deficit ◽  
Olea Europaea ◽  
Olea Europaea L ◽  
Biochemical Responses ◽  
Olive Cultivars ◽  
Physiological And Biochemical ◽  
Mediterranean Conditions ◽  
Olea Europaéa

Morphology and discrimination features of pollen from Italian olive cultivars (Olea europaea L.)

Grana ◽  
2016 ◽  
Vol 56 (3) ◽  
pp. 204-214 ◽  
Author(s):  
Rita Messora ◽  
Assunta Florenzano ◽  
Paola Torri ◽  
Anna Maria Mercuri ◽  
Innocenzo Muzzalupo ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Olea Europaea L ◽  
Olive Cultivars ◽  
Olea Europaéa

scholarly journals CHANGES IN FRUIT YIELD AND PHOTOSYNTHESIS PARAMETERS IN DIFFERENT OLIVE CULTIVARS (Olea europaea L.) UNDER CON-TRASTING WATER REGIMES

2020 ◽  
Vol 19 (3) ◽  
pp. 135-147
Author(s):  
Majid Golmohammadi ◽  
Omid Sofalian ◽  
Mehdi Taheri ◽  
Alireza Ghanbari ◽  
Valiollah Rasoli
Keyword(s):  
Drought Stress ◽  
Olea Europaea ◽  
Principal Component ◽  
Fruit Yield ◽  
Photosynthetic Parameters ◽  
Olive Cultivar ◽  
Drought Treatment ◽  
Olea Europaea L ◽  
Olive Cultivars ◽  
Olea Europaéa

The evergreen tree olive (Olea europaea L.) is the only species of the genus Olea that produces edible fruits with high ecological and economic value. This tree species has developed a series of physiochemical mechanisms to tolerate drought stress and grow under adverse climatic environments. One of these mechanisms is photosynthesis activities, so that as yet little information achieved about the relations between olive production and photosynthetic parameters under drought conditions. An experiment was carried out during two consecutive years (2015–2017) to study the response of 20 different olive tree cultivars (Olea europaea L.) to drought stress. Several parameters like net photosynthetic rate (PN), stomatal conductance (GS), transpiration rate (TE), photosynthetic pigments (total chlorophyll, chlorophyll a, b and carotenoid) and fruit yield were measured. The results of combined analysis of variance for fruit yield and other measured traits showed that year, drought treatment, cultivar main effects and their interactions were highly significant. The results indicated that drought stress reduced all traits, however GS (42.80%), PN (37.21%) and TE (37.17%) significantly affected by drought. Lower reduction in photosynthetic performance (PN, GS and TE) in the cultivar T7 compared to other olive cultivars allowed them to maintain better fruit yield. Principal component analysis (PCA) identified two PCs that accounted for 82.04 and 83.27% of the total variation in photosynthetic parameters under optimal and drought stress conditions, respectively. Taken together, mean comparison, relative changes due to drought and biplot analysis revealed that cultivars ‘T7’, ‘Roghani’, ‘Koroneiki’, ‘Korfolia’ and ‘Abou-satl’ displayed better response against drought stress. According to our results, one olive cultivar namely ‘T7’, could be used in olive breeding programs to improve new high yielding cultivars with drought tolerance for use in the drought-prone environments.

Enzymic browning, oleuropein content, and diphenol oxidase activity in olive cultivars (Olea europaea L.)

1991 ◽  
Vol 39 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Pascale Goupy ◽  
Annie Fleuriet ◽  
Marie Josephe Amiot ◽  
Jean Jacques Macheix
Keyword(s):  
Oxidase Activity ◽  
Olea Europaea ◽  
Olea Europaea L ◽  
Olive Cultivars ◽  
Enzymic Browning ◽  
Olea Europaéa

Differences in abscisic acid concentration in roots and leaves of two young Olive (Olea europaea L.) cultivars in response to water deficit

2009 ◽  
Vol 31 (4) ◽  
pp. 825-831 ◽  
Author(s):  
Mokhtar Guerfel ◽  
Alexandros Beis ◽  
Tasos Zotos ◽  
Dalenda Boujnah ◽  
Mokhtar Zarrouk ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Water Deficit ◽  
Acid Concentration ◽  
Olea Europaea ◽  
Olea Europaea L ◽  
Response To Water ◽  
Olea Europaéa
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