Evaluation of Drought Resistance of Olive Varieties from Different Provenances.

In order to study olive's drought resistance in Yunnan province, different varieties of olive trees from Albania, Italy, Spain and Greece were cultured, and leaves from these trees in drought season and rainy season were collected and determined by physiological indices, such as proline content, relative electric conductivity, binding water/free water, relative water content and malon-dialdehyde in leaves. The evaluation of drought resistance with subordinate function showed that: There were no significant differences among drought resistances of varieties and provenances. The change of physiological indices in different varieties showed different ranges. The drought resistance of seven varieties decreased in order as follows; Koroneiki> Picual> Berat> Kaliniot> Frantoio> Coratina> Arbequina. [ABSTRACT FROM AUTHOR]