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Cross pollination response of loquat cv. 'Algerie'
To explore cross-pollination response in loquat, we carried out controlled pollinations on 23 year-old trees, cv. 'Algerie'. Flowers of labelled shoots were bagged and either self- or cross-pollinated with a mixture of pollen from 'Tanaka' and 'Golden Nugget'. Control shoots were left exposed to open-pollination. Number and quality of the fruits formed were recorded for the three treatments. Results show that under experimental cross- and open-pollination higher fruit set can be obtained when compared with self-pollination. Despite a higher crop load, fruits obtained under open- and cross-pollination were also heavier and larger, with an increase in seed number, and advanced development. No variation in pulp-seed ratio was observed. Microscopy observations showed that self-incompatibility of 'Algerie' is not complete and matched effects of pollination treatments on seed number. Low fruit set under self-pollination suggests that arrival of pollen tubes to ovules may be an inadequate estimation for successful fertilization in this species.
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Mots-clés
ALGERIE, AUTOSTERILITE, ERIOBOTRYA JAPONICA, FRUCTIFICATION, FRUIT, QUALITECiter cet article
Cuevas J., Puertas M., Hueso J.J. Cross pollination response of loquat cv. 'Algerie'. In : Llácer G. (ed.), Badenes M.L. (ed.). First international symposium on loquat. Zaragoza : CIHEAM, 2003. p. 71-74. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 58). 1. International Symposium on Loquat, 2002/04/11-13, Valencia (Spain). http://om.ciheam.org/om/pdf/a58/03600139.pdf