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Abstract

An experiment on maturity was conducted to determine the optimum harvest interval for "Red Petiole" dasheen Colocasia esculenta (L.) Schott var. esculenta in Dominica. Results showed that yield components (yield/hectare, corm weight, length and width) for 8 and 9 months harvest intervals were significantly higher (p< 0.001) than other harvest intervals of 5, 6, and 7 months and larger and more marketable corms were produced. No significant differences were observed for specific gravity (SG) and % dry matter (DM) between different harvest intervals. Responses to sensory evaluation showed a taste preference for 8 and 7 months harvest intervals (30 and 23%). Significant differences were observed for storage life (p<0.001) with the storage life for 8 month harvested corms being more extended (19 days). Based on the percentage of marketable corms, taste preference and storage life the results indicate, that the harvest intervals of 8 months is the appropriate time to harvest "Red Petiole" dasheen cultivar grown under such edaphic conditions.

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