Abstract

LASKOWSKI, Libia E; GARCIA-LUIS, Amparo  and  TORRES, Jhonathan. Desarrollo del fruto del  Citrus Sinensis var. Salustiana. Bioagro [online]. 2006, vol.18, n.1, pp.015-023. ISSN 1316-3361.

Experiments were performed in fruits collected from Citrus sinensis (L.) Osbeck cv Salustiana with the objective to study the development of the different anatomical parts and their kinetic growth. Ten reproductive structures of different cultivated trees from an orchard located in Museros (Valencia, Spain) were collected periodically, from anthesis to 118 days after anthesis (daa) and used to determine transverse sections area of their anatomical parts: pericarp and locules. For anatomical observations with light microscopy, ten countings of each sampling were obtained with the freezing microtome or after inclusion in paraffin. The growth curve of the fruit of cv. Salustiana fitted a single sigmoide curve. Initial growth was related to both division and cellular expansion in the pericarp. Fruit transversal surface showed important increments as from 48 daa and the linear fruit development stage was initiated as from 76 daa, together with locules/vesicles expansion. The fruit showed an anatomical structure similar to the indicated for C. sinensis and other species of Citrus with clear differentiation between flavedo and albedo only at the end of the study. Secretory cavity fitted schizolysigenous ontogeny and vesicle differentiation derived from epidermal and subepidermal tissue of the endocarpo, from anthesis until 48 dda.

Keywords : Orange sweet; fruit growth; fruit anatomy.