Resumo

ALVAREZ-HERRERA, JAVIER GIOVANNI; FISCHER, GERHARD  e  VELEZ-SANCHEZ, JAVIER ENRIQUE. Production of cape gooseberry (Physalis peruvianaL.) fruits with different irrigation coefficients and frequencies and doses of calcium. rev.colomb.cienc.hortic. [online]. 2015, vol.9, n.2, pp.222-233. ISSN 2011-2173.  https://doi.org/10.17584/rcch.2015v9i2.4177.

The cape gooseberry is the most important exotic fruit for Colombia and is a major export item; however, in recent years, the yield of this crop has decreased. Therefore, it is necessary to assess factors that affect performance, such as irrigation and calcium nutrition, for which a randomized block design with 12 treatments in a 4x3 factorial arrangement was used. The blocks were the irrigation frequencies (4, 9 and 14 day intervals). The first factor was the irrigation level (0.7, 0.9, 1.1, and 1.3 of Class A pan evaporation) and the second one was the dose of calcium (0, 50 and 100 kg ha^-1), representing 36 experimental units. The cape gooseberries were transplanted into 20 L pots using peat moss as the substrate. The percentage of fruits obtained for the large (>22 mm), medium (18-22 mm) and small (<18 mm) sizes Mas 9.17%, 31.44% and 59.75%, respectively. As the irrigation frequency increased, the fruit production was higher; however, if Ca2+ was applied, the amount of small fruits decreased. The irrigation frequency of 4 days had the fruits with the highest average fresh mass. By increasing the amount of applied water with a 1.3 irrigation coefficient, the production per plant increased along with the number of fruits, especially small fruits. The accumulation of dry mass in the fruits increased with the irrigation level and longer irrigation frequencies.

Palavras-chave : Solanaceae; nutrition; fruit size; fresh weight; dry matter accumulation.

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