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Modelling leaf development in Oxalis latifolia

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Issue date
2010
Author
Royo-Esnal, Aritz
López Fernández, María Luisa
Suggested citation
Royo-Esnal, Aritz; López Fernández, María Luisa; . (2010) . Modelling leaf development in Oxalis latifolia. Spanish Journal of Agricultural Research, 2010, vol. 8, núm. 2, p. 419-424. https://doi.org/10.5424/sjar/2010082-1214.
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Abstract
This 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.
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http://hdl.handle.net/10459.1/41558
DOI
https://doi.org/10.5424/sjar/2010082-1214
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Spanish Journal of Agricultural Research, 2010, vol. 8, núm. 2, p. 419-424
European research projects
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  • Articles publicats (Hortofructicultura, Botànica i Jardineria) [182]

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  • Control de Oxalis latifolia: revisión y propuestas para su mejoramiento 

    Royo-Esnal, Aritz; López, María Luisa (Pontificia Universidad Católica de Chile, 2008)
    Oxalis latifolia is a weed with a tropical, temperate and mediterranean distribution. It invades orchards, plant nurseries, gardens and corn fi elds. Although some mechanical and cultural methods and some herbicides may ...
  • Fresh matter production by two forms of Oxalis latifolia as influenced by soil and climate 

    Royo-Esnal, Aritz; López Fernández, María Luisa (Pontificia Universidad Católica de Chile, 2012)
    Oxalis latifolia is a widely distributed weed that mainly affects corn fields, orchards, plant nurseries and gardens. Two forms of the weed have been identified: the common form, with fish-tailed leaflets, bulbils growing ...
  • Effect of temperature and moisture on the dormancy and activation pattern of Oxalis latifolia bulbs 

    Royo-Esnal, Aritz; López Fernández, María Luisa (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2008)
    Con objeto de buscar información para un mejor control de Oxalis latifolia Kunth, se ha estudiado el efecto que presentan la temperatura y la humedad sobre la activación de sus bulbos, tanto en la forma común como en la ...

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