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Bioclimatic requirements for olive flowering in two Mediterranean Regions located at the same latitude [Andalucia, Spain, and Sicily, Italy]

100%

Orlandi F., Vazquez L. M., Ruga L., Bonofiglio T., Fornaciari M., Garcia-Mozo H., Dominguez E., Romano B., Galan C.

Annals of Agricultural and Environmental Medicine

2005

tom 12

nr 1

The Mediterranean Region is the major area devoted to olive tree crop, and therefore a study of olive flowering is of great interest for the European Community. On the other hand, olive pollen is one of the main causes of pollen allergy in the Mediterranean area. Olive flowering is affected by climatic factors such as temperature and photoperiod, which vary geographically in latitude and altitude. Temperature has been used to study those processes that lead to flowering in the olive tree. The aim of the present paper is firstly the comparison of the flowering full bloom dates in two Mediterranean areas, Sicily (Italy) and Cordoba (Spain), located in the same latitudinal band (37-38oN) and to calculate the heat requirement until flowering by determination of different threshold temperatures and methods of heat accumulation. A delay of the full flowering dates in the Spanish compared with the Italian olive groves was observed. The most suitable threshold temperatures were carried out in a 7-15oC range by considering the heat accumulation start on 1 January in each olive grove. In particular, some causes were indicated as responsible for the different threshold temperatures recorded in the 2 study areas: First, the different climatic conditions (continental and insular climate) secondly the different cultivars present in the olive groves.

Ograniczanie wyników

1 Annals of Agricultural and Environmental Medicine

1 Bonofiglio T.

1 Dominguez E.

1 Fornaciari M.

1 Galan C.

1 Garcia-Mozo H.

1 Orlandi F.

1 Romano B.

1 Ruga L.

1 Vazquez L. M.

1 2005

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Bioclimatic requirements for olive flowering in two Mediterranean Regions located at the same latitude [Andalucia, Spain, and Sicily, Italy]