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dc.creatorRoyo-Esnal, A. (Aritz)-
dc.creatorLopez, M.L. (María Luisa)-
dc.identifier.citationRoyo-Esnal A, Lopez ML. Modelling leaf development in Oxalis latifolia. Span J Agric Res. 2010;8(2):419-424.es_ES
dc.description.abstractThis study was carried to develop functions that could explain the growth of Oxalis latifolia, in both early stages and throughout the season, contributing to the improvement of its cultural control. Bulbs of the Cornwall form of O. latifolia were buried at 1 and 8 cm in March 1999 and 2000. Samples were destructive at fixed times, and at each time the corresponding BBCH scale codes as well as the absolute number of growing and adult leaves were noted. Using the absolute number of adult leaves (transformed to percentages), a Gaussian curve of three parameters that explains the growth during the season (R2 = 0.9355) was developed. The BBCH scale permitted the fit of two regression lines that were accurately adjusted for each burial depth (R2 = 0.9969 and R2 = 0.9930 respectively for 1 and 8 cm). The best moment for an early defoliation in Northern Spain could be calculated with these regression lines, and was found to be the second week of May. In addition, it was observed that a burial depth of 8 cm does not affect the growing pattern of the weed, but it affects the number of leaves they produce, which decreases to less than a half of those produced at 1 cm.es_ES
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)es_ES
dc.subjectMaterias Investigacion::Ciencias de la vida::Botánicaes_ES
dc.subjectBBCH scalees_ES
dc.subjectControl by defoliationes_ES
dc.subjectGaussian curvees_ES
dc.subjectLinear regressiones_ES
dc.titleModelling leaf development in Oxalis latifoliaes_ES

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