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    A longitudinal study of sweet orange flowering with grouped count data


    de Lara, Idemauro Antonio Rodrigues and Taconeli, Cesar Augusto and de Andrade Moral, Rafael and Hinde, John and Voigt, Vanessa and de Freitas, Sílvia Maria (2020) A longitudinal study of sweet orange flowering with grouped count data. Acta Scientiarum. Agronomy, 42 (1). pp. 1-10. ISSN 1679-9275

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    Abstract

    The orange variety “x11”, which is a spontaneous mutant of the sweet orange, has a short juvenile period with early flowering. The data used in this paper are from a randomized design experiment that aimed to assess the plants' flowering characteristics when grafted onto two different varieties of lemon rootstock. The plants were pruned in each of the four seasons, and on each pruning occasion, the number of branches on each plant was counted and classified into four mutually exclusive flowering categories. The data presented large variability and many zeros. The statistical analysis included the use of generalized linear mixed models with a Bayesian approach. The results showed that flowering is not equal over the seasons, i.e., there are significant differences in the classification of the branches across the four seasons and the two varieties, with interactions between seasonal and branch effects.

    Item Type: Article
    Keywords: Citrus; discrete data; mixed model; Bayesian analysis;
    Academic Unit: Faculty of Science and Engineering > Mathematics and Statistics
    Item ID: 14602
    Identification Number: https://doi.org/10.4025/actasciagron.v42i1.43734
    Depositing User: Rafael de Andrade Moral
    Date Deposited: 13 Jul 2021 14:52
    Journal or Publication Title: Acta Scientiarum. Agronomy
    Publisher: Universidade Estadual de Maringá
    Refereed: Yes
    URI:

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