Evaluation of the Olive Germplasm in the Apulia Region: Biological and Technological Characteristics

Ferrara, Enzo; Papa, Giuseppe Lo; Lamparelli, Francesco

doi:10.17660/actahortic.2002.586.26

Cited by 6 publications

(1 citation statement)

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“…As a result, Self-incompatibility obliges olive growers to plant more than one cultivar in their orchards to ensure sufficient cross-pollination Mookerjee et al, 2005). Cross-pollination can enhance fertilization as shown by reports indicating higher fruit set resulting in more regular yields even for partially self-fertile cultivars (Cuevas et al, 2001 andBreton andBervillé, 2012) Some researchers also determined that the use of appropriate pollinator cultivar even in self-fertile cultivars had a positive effect on yield (Ferrara et al, 2002). Moreover, previous studies reported an increase in fruit set by using pollinator cultivars hence emphasizing the necessity of having pollinator cultivars for orchard establishment (Lombardo et al, 2006;Vulletin et al, 2006;Farinelli et al, 2008 andMete et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Effect of Using Some Pollinators on Productivity of Some Olive Cultivars

El-Soda¹,

El-Husseiny²,

Hammad³

2017

Egyptian Journal of Agricultural Sciences

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The present study was carried out during two successive growing seasons 2014 and 2015 in a private orchard located at Cairo-Alexandria desert road, 64 km from Cairo, to evaluate the efficiency of pollinator on productivity and quality attributes of eight olive cultivars, namely Aggizi, Dolce, Kalamata, Maraki, Coratina, koroneiki, Picual and Manzanillo. Ten year old olive trees, grown in sandy soil, planted at 6 X 3 meters apart and irrigated by the drip irrigation system were used for this investigation. The results revealed that, there were differences in the onset and duration of flowering among the studied cultivars in both seasons. The earliest cultivar in flowering was Aggizi, while the latest cultivar in this respect was Kalamata Cv. in both seasons. Regarding flowering duration, it was observed that the studied cultivars overlapped in their blooming period where it is varied between 15 and 20 days in 2014 and 14-18 days in 2015. The highest perfect flower percentage was observed in Dolce and Coratina Cvs. With respect to self-incompatibility index, Aggizi, Dolce, Maraki and Koroneiki were self-compatible. Then, Picual and Coratina Cvs. recorded partially self-incompatible, whereas, Kalamata and Manzanillo Cvs. recorded higher degree of selfincompatibility,Cross pollination induced the best results with regard to fruit set %, and fruit weight and oil content in most olive cultivars. It can be recommended that, the suitable pollinator for each cultivar were as follows: Maraki and Aggizi were good pollinators for each other, Koroneiki for Dolce, Manzanillo and Picual. Finally, Dolce was a good pollinator for Kalamata, Coratina and Koroneiki.

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Section: Introductionmentioning

confidence: 99%

Effect of Using Some Pollinators on Productivity of Some Olive Cultivars

El-Soda¹,

El-Husseiny²,

Hammad³

2017

Egyptian Journal of Agricultural Sciences

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Bayesian and Phylogenic Approaches for Studying Relationships among Table Olive Cultivars

Ayed

Ennouri

Amar³

et al. 2017

Biochem Genet

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To enhance table olive tree authentication, relationship, and productivity, we consider the analysis of 18 worldwide table olive cultivars (Olea europaea L.) based on morphological, biological, and physicochemical markers analyzed by bioinformatic and biostatistic tools. Accordingly, we assess the relationships between the studied varieties, on the one hand, and the potential productivity-quantitative parameter links on the other hand. The bioinformatic analysis based on the graphical representation of the matrix of Euclidean distances, the principal components analysis, unweighted pair group method with arithmetic mean, and principal coordinate analysis (PCoA) revealed three major clusters which were not correlated with the geographic origin. The statistical analysis based on Kendall's and Spearman correlation coefficients suggests two highly significant associations with both fruit color and pollinization and the productivity character. These results are confirmed by the multiple linear regression prediction models. In fact, based on the coefficient of determination (R ) value, the best model demonstrated the power of the pollinization on the tree productivity (R = 0.846). Moreover, the derived directed acyclic graph showed that only two direct influences are detected: effect of tolerance on fruit and stone symmetry on side and effect of tolerance on stone form and oil content on the other side. This work provides better understanding of the diversity available in worldwide table olive cultivars and supplies an important contribution for olive breeding and authenticity.

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