Keywords: Solanaceae, phenology, yield, adaptation.
The present study was undertaken in a greenhouse and ferti-irrigation at Chapingo, Mexico, to evaluate the agrophenological behavior during the period of August 2003 to February 2004 of six wild harvests of Physalis peruviana L., introduced from Peru. A random design with six repetitions was used; the experimental unit was made up of 10 polyethylene containers, (40 cm high and a diameter of 25 cm) filled with tezontle sand, that were placed in rows parallel to the irrigation system; the containers and rows were separated by 50 cm and 80 cm, respectively. There was a significant difference in genotypes among the collections with regards to fruit yield, fresh fruit weight with and without peel, total plant height, and first bifurcation, diameter of the stalk, and the number of leaves per plant. On the 64th day after being transplanted, a collection from Huancayo reached the tallest plant height (85 cm), diameter of the stalk (1.33 cm), and number of leaves per plant (67). The average fruit yield was 22 t·ha-1. The number of fruit per plant, total plant height, and to the first bifurcation, and total number of leaves per plant had a positive correlation with the total yield of fruit. The phonological development of all the collections were similar over time: they germinated in 12 days, while the flowering, growth, and fruit maturity began at 42, 52 and 146 days after being transplanted, respectively. Nevertheless, the period when these stages occurred overlapped due to the habit of undetermined growth of the specie and similar responses to the production environment.