BIOMASS ACCUMULATION IN OPUNTIA FICUS-INDICA (L.) MILL PLANTS GROWN IN A CLOSED HYDROPONIC SYSTEM

P. Almaguer-Sierra, H. Rodríguez-Fuentes, J.A. Vidales-Contreras, R. Valdez-Cepeda, J. Aranda-Ruíz, J. Rodríguez-Absi, M. López-Jiménez, J.C. Rodríguez-Ortíz
The research was carried out at the Hydroponic Station of the Agronomy School of the Universidad Autónoma de Nuevo León, in Marin, NL Mexico. Tender pad cactus (Opuntia ficus-indica L. Mill.) cultivar ‘Villanueva’ was planted at a density of 16 plants m-2. The aims of this study were: a) to estimate the tender pad cactus yield and, b) to determinate the increment of the fresh weight, dry matter, and nitrogen accumulation rate as a function of the air temperature (degree-days). Total cactus yield at 56 days after plantation, based on the fresh weight and dry matter production was 4.265 kg m-2 and 0.2252 kg m-2, respectively, while the total nitrogen uptake in the same period was 4.36 kg m-2. The relationship of fresh weight, dry matter and nitrogen uptake to degree-days was a first degree polynomial with R2 0.9924, 0.9948, and 0.9887 (p<0.001) determination coefficient per research parameter, respectively. The increased production rate of fresh tender pad cactus and dry matter content was 0.004 and 0.0002 kg m-2 (degree-days)-1, respectively while the nitrogen accumulation rate was estimated to be 0.0228 g m-2 (degree-days)-1.
Almaguer-Sierra, P., Rodríguez-Fuentes, H., Vidales-Contreras, J.A., Valdez-Cepeda, R., Aranda-Ruíz, J., Rodríguez-Absi, J., López-Jiménez, M. and Rodríguez-Ortíz, J.C. (2009). BIOMASS ACCUMULATION IN OPUNTIA FICUS-INDICA (L.) MILL PLANTS GROWN IN A CLOSED HYDROPONIC SYSTEM. Acta Hortic. 843, 35-42
DOI: 10.17660/ActaHortic.2009.843.2
https://doi.org/10.17660/ActaHortic.2009.843.2
rate of growth, tender pad cactus, nitrogen, degree-days, soilless culture
English

Acta Horticulturae