Abstract
Cape gooseberry (Physalis peruviana L.) is a plant with a high nutrient content and various medicinal properties, it has a high economic potential, which makes it an alternative production. Currently, there is not enough experience on this crop in Mexico, for this reason the present study was performed to evaluate the response of young plants to different ratios of NO3 to NH4+ in protected conditions and in a hydroponic system. The experiment was carried out using a completely randomized design with three ratios of NO3 to NH4+(100:0, 75:25 and 50:50) and four replications. Plant height, main stem diameter and SPAD readings, at 1, 10, 17 and 27 days after transplanting (DAT), leaf area and fresh weight at 21 and 30 (DAT) were measured. The research showed that there were statistical differences in plant height and stem diameter as result of treatments effect. It was also concluded that the nitrogen preferably nutrition form for this crop is nitric, however, it was observed that the crop can also absorb ammonia nitrogen without affecting growth variables when the ratio is 50:50.
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