TY - JOUR AU - Höhn, Daniela AU - Peil, Roberta Marins Nogueira AU - Marchi, Priscila Monalisa AU - Grolli, Paulo Roberto AU - Perin, Lais AU - Rosa, Douglas Schulz Bergmann da PY - 2019/09/01 Y2 - 2024/03/29 TI - Growth and quality of lisianthus [Eustoma grandiflorum (Shinn.)] cultivated in rice husk substrates in troughs with leaching recirculation JF - Revista Colombiana de Ciencias Hortícolas JA - Rev. Colomb. Cienc. Hortic VL - 13 IS - 3 SE - Ornamental section DO - 10.17584/rcch.2019v13i3.9891 UR - https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/9891 SP - 458-465 AB - <p>This study aimed to evaluate the growth and quality of lisianthus cultivated in different rice husk substrates. The evaluated substrates were: carbonized rice husk (CRH; 100%); raw rice husk (RRH; 100%); CRH (70%) + S10 Beifort® commercial organic compost (30%); and RRH (70%) + S10 Beifort® commercial organic compost (30%). Plant dry mass (DM) production and partitioning, plant leaf area and shoot/root DM ratio were analyzed. Quality parameters of the flower stems were also evaluated (length; diameter and number of flowers and buds). The RRH substrate at 100% reduced plant growth and prevented flower development. This modified dry mass partitioning among the plant organs. The substrates RRH + S10 and CRH provided quality flower stems. Thus, both substrates can be used to produce cut lisianthus flowers in recirculating nutrient systems. However, the RRH + S10 substrate stood out because it increased plant growth. This result is ascribed to the improvement of the physical and chemical properties of substrate RRH + S10 as a result of the presence of both the organic compost, which benefited the water holding capacity, and the RRH, which guaranteed high porosity to the substrate.</p> ER -