Flower Anomalies in Olea Europaea Cv. Santulhana

Medeira, M.C.; Maia, Miguel; Narane, S.; Serrano, M.C.; Leitão, Fabrício Oliveira; Lopes, José Flávio; Santos, M.

doi:10.17660/actahortic.2002.586.99

Cited by 3 publications

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“…about a month before blooming (Uriu 1959;Cuevas et al 1999;Medeira et al 2002). Two weeks before anthesis, the pistils in Leccino did not differentiate normal ovules and showed incompletely developed carpels that did not entirely close to form the style and stigma, while normal microsporogenesis was observed in the anthers.…”

Section: Discussionmentioning

confidence: 99%

“…In the Santulhana cultivar, the alterations leading to pistil abortion started in epidermal cells and proceeded from there into internal tissues. The condition of the pistils at the onset of lesions and the similarity of their response with the response of resistant forms to plasmodial organisms suggests that biotic factors may be involved in pistil damage (Medeira et al 2002). While these studies were carried out on pistil development, most research concerning fruit set and production potential of olive have dealt with the post-anthesis period.…”

Section: Introductionmentioning

confidence: 99%

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Reproductive biology of Olive (Olea europaea L.) DOP Umbria cultivars

et al. 2006

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Olive trees have a plentiful bloom but a low percentage of normal fruit set. To improve fruit set, numerous investigations have sought to identify the obstacles that prevent full production. In this work, flower development in five DOP Umbria cultivars (Leccino, Frantoio, Moraiolo, Dolce Agogia and San Felice) was studied throughout different developmental phases, from before microsporogenesis and megasporogenesis to post-anthesis, by morphological and cytohistological observations. Dolce Agogia was the most precocious cultivar, while full flowering was simultaneous in Leccino, Frantoio, Moraiolo and San Felice. Frantoio and Leccino were also good pollen producers, having the highest percentage of pollen viability and germinability. Dolce Agogia can also be considered a good pollen producer in terms of the high quantity of released pollen, but it had the lowest levels of pollen viability and germinability and the highest percentage of aborted flowers and ovaries. Morphological and cytohistological observations on the number of flowers per inflorescence and the number of aborted flowers and ovaries suggest that fruit set was not influenced by the number of flowers per inflorescence, but rather by the number of inflorescences, which depends on the global fruiting potential of the tree.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%