ISHS Acta Horticulturae 791: V International Symposium on Olive Growing
EFFECT OF CROSS-POLLINATION IN 'CRIOLLA' OLIVES: A TYPICAL CULTIVAR OF PERU |
| Authors: | F.F.J. Castillo-Llanque, E.M. Casilla, H. Baumann |
| Keywords: | Olea europaea, self-pollination, self-incompatibility, shotberries, fruit abscission, fruit set |
| Abstract:
'Criolla' is the main table-olive cultivar in Peru accounting for 97% of the total olive groves. The extensive abscission of flowers and small fruits and the abundant presence of shotberries in monovarietal orchards prompted us to study the effect of cross-pollination in this cultivar. Fruit set and presence of shotberries were evaluated in 'Criolla' olive following self-pollination and pollination with 'Ascolana' and two cultivars called 'A4 20-10' and 'G2 2-4'. Olive size, (length and diameter), an important trait of table olives was also evaluated. The abscission of flowers and small fruits was higher in self-pollination than in cross-pollination. The cross-pollination increased the final set fruit, especially with ‘Ascolana’ pollen. The shotberries were only found in high numbers at harvesting with self-pollination. The length of fruits did not show significant differences between the two kinds of pollination. However, the diameter of fruits in self-pollination was significantly higher than in 'Ascolana' and 'A4 20-10' but similar to that of 'G2 2-4'. These results demonstrate that 'Criolla' is partially self-incompatible, requiring other varieties to improve its production and quality. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
