Estudo de técnicas de produção das ornamentais Caladium x hortolanum cv Freida hemple e Cereus jamacaru DC.

Abstract

With the significant increase in demand and consumption of ornamental products is necessary to increase the productivity of these items. With the significant increase in demand and consumption of ornamental products is necessary to increase the productivity of these items. Studies are important for the "productivity increase" does not influence the quality, or modify the characteristics desirable to the consumer market, with respect to production techniques and cultivation. The Brazilian market for ornamental plants is hungry for novelties. So producers often seek to include new plants in cultivation, sometimes already known and used them, that being the case of “mandacaru”, widely used in the Project with neme of “Tejucactus” in Tejuçuoca city in CE. Within this context, this work was carried out to provide information about techniques for the cultivation of three ornamental plants: Caladium, Sansevieria cylindrica and Cereus jamacaru. For Caladium were used a completely randomized design in a factorial 2x6 (or not practice is emerging and six concentrations of GA3 (0, 250, 500, 750, 1000 and 1250 ppm) applied before planting the tubers. Greater root lengths were found in plants, of tubers kept intact and without the application of GA3; Greater heights stems were found in plants of tubers kept intact, treated with GA3; Higher numbers of stems were found in plants of tubers kept intact; Greater length and leaf width was found plants of tubers kept intact and tubers treated with GA3 or Caladium tubers must be kept intact and treated with GA3 or apical dominance (De-eyed) should be performed without the use plant regulator. For Cereus jamacaru treatments in DIC, consisted in coconut fiber (FC) and carbonized rice chaff (CAC) substrates: 100% FC (T1), 100% CAC (T2), 75% FC +25% CAC (T3), 50% FC +50% CAC (T4), and 25% FC +75% CAC (T5). The substrate composed only of coconut fiber showed better results in all variables.