Everbearing strawberries on substrate: comparison of new cultivars and of two planting densities | Fraisiers remontants sur substrat: comparaison de nouvelles varietes et de deux densites de plantation
2006
Ancay, A. | Carlen, C. (Agroscope Changins-Waedenswil (ACW), Conthey (Switzerland). Centre des Fougeres)
Strawberry production on substrate with everbearing varieties is expanding in Switzerland. In order to evaluate the new everbearing strawberry cultivars Charlotte, Diamante, Elsegarde, Elsinore and Flamenco, they were compared to Mara des Bois in substrate culture in 2003 and 2004. Moreover, the optimal plantation density was analysed. For all the everbearing cultivars tested, the optimal plantation density was one plant per pot on the tubular system corresponding to 6 plants per linear metre. With this density, the yields are similar, but the planting, harvesting and culture maintenance costs are lower than those for two plants per pot. The Elsinore variety gave the best 1st quality yields with nearly 1 kg per plant, good fruit size but with average to good sensory quality. Charlotte and Elsegarde produced fruits of good to very good quality, with sizes similar to those of Elsinore but yields inferior of about 15%. Mara des Bois showed inferior yields and fruit sizes, about 40% lower than Elsinore. However, the sugar contents of its fruits was slightly higher than the one of Elsegarde and Charlotte. Flamenco and Diamante gave few yields, similar to the one of Mara des Bois. Diamante produced the biggest fruits in 2003. In conclusion, the results showed that Elsinore offers considerable yields, Mara des Bois very good fruits and Charlotte and Elsegarde an excellent compromise between quality and yield.
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