Biometry of Luffa cylindrica M.Roem., 1846 (Cucurbitaceae) and its ecological relations with visiting insects in two different nutritional systems

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