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Ciencia e investigación agraria

versión On-line ISSN 0718-1620


STEINFORT, Ursula et al. Phenological cycle and floral development of Chloraea crispa (Orchidaceae). Cienc. Inv. Agr. [online]. 2012, vol.39, n.2, pp.377-385. ISSN 0718-1620.

Chloraea crispa Lindl. is a terrestrial orchid endemic to Chile that has potential to be a novel alternative for the cut flower industry. The objectives of this study were to describe the phenological cycle and floral bud development of C. crispa to determine the timing of initiation and differentiation of the spike. During the summer, plants are dormant. The renewal buds are located at the top of the rhizome, next to the buds from which the shoot of the previous season originated. From the end of summer until the end of winter, the plant is in vegetative growth. From June onward, the flower stalk starts to emerge, and flowering and leaf senescence occur during the spring until the beginning of summer. The renewal buds started forming leaf primordia during or after the flowering of the above-ground annual stems and the senescence of the plant. Between December and January, the apical meristem changes to the reproductive stage, and from March, the first flower primordial could be observed. C. crispa shows similarity with other geophytes in which florogenesis and the development of new organs occurs within the renewal buds during or after the summer dormancy period.

Palabras clave : Chilean orchid; Orchidaceae; geophyte; orchid florogenesis; orchid phenology; terrestrial orchid.

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