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CRUZ, Bruna P.; CHEDIER, Luciana M.; FABRI, Rodrigo L.  and  PIMENTA, Daniel S.. Chemical and agronomic development of Kalanchoe brasiliensis Camb. and Kalanchoe pinnata (Lamk.) Pers under light and temperature levels. An. Acad. Bras. Ciênc. [online]. 2011, vol.83, n.4, pp.1435-1442. ISSN 0001-3765.

This study compares the development of Kalanchoe brasiliensis and Kalanchoe pinnata, which are medicinal species known as "saião" and "folha da fortuna" that are used interchangeably by the population for medicinal purposes. The experiment consisted of 20 plots/species planted in plastic bags with homogeneous substrate in a randomized design, which grown under light levels (25%, 50%, 70%, full sunlight) at environment temperature, and a treatment under a plastic with greater temperature range than the external environment. It was obtained for K. pinnata a greater plant height, total length of sprouts, stems, production and dry matter content of leaves than that obtained for K. brasiliensis, which achieved higher averages only for the length of lateral branches. The species showed increases in height, which varied in inverse proportion to the light, and it was observed the influence of temperature in K. pinnata. The production and dry matter content of leaves were proportional to the luminosity; the same occurred in the thickness of leaves for K. brasiliensis. In the swelling index and Brix degree, K. brasiliensis showed higher averages than K. pinnata. In relation to the total content of flavonoids it was not observed significant differences for both species. The analyzed parameters showed the main differences in the agronomic development of the two species.

Keywords : Kalanchoe; luminosity; mucilage; flavonoids.

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