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Investigación Agraria

versión On-line ISSN 2305-0683


FRIDRICH, Gilivã-Antonio et al. Biometry of Luffa cylindrica M.Roem., 1846 (Cucurbitaceae) and its ecological relations with visiting insects in two different nutritional systems. Investig. Agrar. [online]. 2022, vol.24, n.2, pp.61-69. ISSN 2305-0683.

This research aimed to analyze the morphological development and biological cycle of Luffa cylindrica, in different types of fertilization (basalt powder and NPK), as well as to identify the visiting entomofauna. Research was made in Canoinhas, Santa Catarina State, in a 450 m² area, held in nine flowerbeds: three with basalt powder, three with NPK and three with no fertilization (control test). Evaluations were carried out fortnightly, and variables tested were: number of germinated seeds, plant height (cm), leaves and flowers length and width (cm), fruits length (cm), number of flowers and fruits, damaged fruits (presence or absence) and, finally, collection of visiting insects. The species germinated at 60 days, its leaves can reach 18.67 cm long and 16.72 cm wide; 10 flowers, measuring on average 6.67 cm, and 11 fruits with 24.50 cm in length. Basalt powder efficiency was higher for plant height and number of damaged fruits. For flowers number, length and width of flowers, NPK was more efficient, in the other variables there was no significant difference. Thus, basalt powder is a sustainable fertilizer alternative, avoiding conventional products.

Palabras clave : Fertilization; Morphological Aspects; Vegetable Bush.

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