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EnglishPhysalis ixocarpa (husk tomato) is traditionally cultivated in Mexico, and nowadays the yield is low. In this study, four cultivars of husk tomato were evaluated, under greenhouse and field conditions. It was carried out a split-plot experimental design in a 4x2 factorial arrangement. The large plot was the growth conditions and the small plot was the variety. The microclimate, soil and yield variables were recorded. In the field, the Integrated Photosynthetic Active Radiation (IPAR) was higher 12mol m-2 d-1 than in the greenhouse. The average temperature was slightly higher 1.18°C in the greenhouse and the average relative humidity was slightly higher 0.89% in the field. Plants grown in the greenhouse had lower negative values for the matric potential of the soil. Water consumption and water use efficiency were 10.31 and 53.43% higher in the greenhouse that in the field, respectively. The number of fruits and yield increased significantly in all varieties grown under greenhouse conditions. Key words: horticulture; husk tomato; intensive production; Solanaceae; yield portuguesA Physalis ixocarpa (Tomate de cascara) e cultivada tradicionalmente no Mexico. Entretanto, sua produtividade de frutos e considerada baixa. Neste estudo, avaliou-se quatro cultivares de Physalis ixocarpa cultivadas em ambiente protegido e a ceu aberto. O delineamento experimental utilizado foi em blocos ao acaso no esquema de parcelas subdivididas com arranjo fatorial 2x4. Foi alocado na parcela principal o fator ambiente de cultivo e na subparcela o fator cultivar. Foram analisadas variaveis climaticas de solo e a produtividade de frutos. A radiacao fotossinteticamente ativa integrada (RFAI) no ambiente a ceu aberto foi maior em 12mol m-2 dia-1, em relacao ao ambiente protegido. A temperatura media foi ligeiramente maior em 1,18oC no ambiente protegido e a umidade relativa foi ligeiramente maior em 0,89% a ceu aberto. Os valores negativos do potencial matrico do solo foram mais baixos no ambiente protegido. O consumo e a eficiencia do uso da agua foram, respectivamente, 10,31 e 54,43% maiores no ambiente protegido, em relacao ao ambiente a ceu aberto. O numero e a produtividade de frutos incrementaram, significativamente, em todas as variedades avaliadas nas condicoes de ambiente protegido. Palavras-chave: horticultura; Physalis ixocarpa; producao intensiva; Solanaceae; produtividade

Yield analysis of Physalis ixocarpa Brot. ex Hornem varieties under greenhouse and field conditions