摘要 :
An experiment was conducted in Etna, Sicily, Italy, to conserve and increase the value of the best native chestnut trees from 43 genotypes for fruit production. Fruit ripening occurred between the last week of September and the se...
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An experiment was conducted in Etna, Sicily, Italy, to conserve and increase the value of the best native chestnut trees from 43 genotypes for fruit production. Fruit ripening occurred between the last week of September and the second week of November. The husk traits were also observed. The valves were completely opened in 50% of genotypes, closed in 23% of genotypes and 14% were semi-open while the remaining genotypes (13%) did not show a particular tendency. The number of normal fruits inside the husk was 0.9 and 2.8. Fruit shape and size showed great variability in terms of length, from 23.5 to 39.1 mm, weight from 23.2 to 35.5 mm, and thickness from 14.4 to 23.6 mm. The number of fruits per kg ranged from 72 to 219. Of the samples studied, 35% presented a globose shape and 28% an ovoid shape. Testa removal was medium-weak for 35% of the genotypes, whereas 33% of the genotypes had a value of penetration of testa into embryo between 1 and 10. Thirty-five percent of the samples had a weak degree of penetration. Nut colour at harvesting was reddish brown-blackish brown in 23% of genotypes. Skin brightness was present for 37% of genotypes..
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