Open-access Yield of onion cultivars in the semi-arid region of Piauí State, Brazil

The yield of onion cultivars was evaluated in the Picos region, Brazil, from May to October 1999. The experimental design was of randomized complete blocks with 18 treatments and four replications. The cultivars Granex 33, Composto IPA-6, Belém IPA-9, Franciscana IPA-10, Vale Ouro IPA-11, Texas Grano 502, Conquista, Crioula, Serrana, Granex 429, Régia, Princesa, Mercedes, Duquesa, Linda Vista, Piraouro, Granex Ouro and Baia Periforme Precoce were evaluated. We evaluated the commercial and noncommercial bulb yield. The cultivars were grouped in three classes according to bulb yield (>40 t/ha; 39.9-34.6 t/ha; 32.4-26.9 t/ha). The average onion bulbs yield was 41,9 t/ha. The most productive cultivars (commercial bulbs) were Vale Ouro IPA-11 (43,7 t/ha), Franciscana IPA-10 (41,5 t/ha) and Mercedes (40,5 t/ha).

Allium cepa; yield; adaptation


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