Effect of Cross-Pollination in 'Criolla' Olives: A Typical Cultivar of Peru

Castillo-Llanque, Franco; Casilla, E.M.; Baumann, H.

doi:10.17660/actahortic.2008.791.39

Cited by 4 publications

(2 citation statements)

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“…The occurrence of parthenocarpic fruitlets, known as shotberries, was significantly higher after self- than following open pollination. These results suggest that the lower the fertilization, the higher the shotberry production, in agreement with the findings of other authors [ 33 – 35 ]. Nevertheless, there is variability in shotberry set among different twigs of the same cultivar and no clear correlation between degree of self-incompatibility and shotberry production was found.…”

Section: Discussionsupporting

confidence: 93%

Olive Fertility as Affected by Cross-Pollination and Boron

Spinardi

Bassi

2012

The Scientific World Journal

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Self-compatibility of local olive (Olea europaea L.) accessions and of the cultivars “Frantoio” and “Leccino” was investigated in Garda Lake area, northern Italy. Intercompatibility was determined for “Casaliva,” “Frantoio,” and “Leccino,” as well as the effects of foliar Boron applications (0, 262, 525, or 1050 mg·L−1) applied about one week before anthesis on fruit set, shotberry set, and on in vitro pollen germination. Following self-pollination, fruit set was significantly lower and the occurrence of shot berries significantly higher than those obtained by open pollination. No significant effect of controlled cross-pollination over self-pollination on fruit set and shotberry set was detectable. B treatments increased significantly fruit set in “Frantoio” and “Casaliva” but not in “Leccino.” B sprays had no effect on shotberry set, suggesting that these parthenocarpic fruits did not strongly compete for resources allocation and did not take advantage of increased B tissue levels. Foliar B application enhanced in vitro pollen germination, and the optimal level was higher for pollen germination than for fruit set. Our results highlight the importance of olive cross pollination for obtaining satisfactory fruit set and the beneficial effect of B treatments immediately prior to anthesis, possibly by affecting positively the fertilisation process and subsequent plant source-sink relations linked to fruitlet retention.

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Section: Discussionsupporting

confidence: 93%

Olive Fertility as Affected by Cross-Pollination and Boron

Spinardi

Bassi

2012

The Scientific World Journal

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“…Castillo-Lianque et al . (2008) reported a high incidence of shotberries during harvest only in self-pollinated Ascolana trees confirming the impact of pollen source on successful flower fertilization of olive. Additionally, intensity of shotberry production varied between cultivars in our work, in agreement with previous studies of other olive cultivars (Gozel et al ., 2008; Ugrinovic and Stampar, 1996).…”

Section: Resultsmentioning

confidence: 87%

INFLUENCE OF CROSS-POLLINATION ON THE DEVELOPMENT OF PARTHENOCARPIC OLIVE (OLEA EUROPAEA) FRUITS (SHOTBERRIES)

2009

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SUMMARYThe impact of three different pollination treatments (self-, cross-, free-) on the degree of shotberry (seedless fruit) formation of the olive tree cultivars (cvs) Koroneiki, Kalamata, Mastoidis and Amigdalolia was studied for three consecutive years. Controlled crosses were made for the cross-pollination treatments, while for the free pollination treatment flowers were allowed to receive pollen from more than 40 cultivars present in the field. Significant differences were recorded between treatments, cultivars and years. The lowest degree of shotberry formation was observed in free-pollinated trees while the highest was in self-pollinated trees of all cultivars. Low air temperature incidents during the flowering period increased shotberry formation. Cultivars Koroneiki and Mastoidis were reciprocally the most effective pollinator varieties in reducing shotberries. Cultivar Koroneiki could be considered as the most suitable pollinator to reduce shotberries in Kalamata. When cv. Amigdalolia was cross-pollinated by cvs Koroneiki and Mastoidis the degree of shotberry formation was lower when compared to cross-pollination by cv. Kalamata.

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