Ambiência, secção da estaca e ácido indol-butírico na propagação por estaquia de Guadua Chacoensis

Abstract

The Guadua Chacoensis species presents numerous possibilities of use, however, in Brazil its use is limited, which can be a consequence of the difficulty of obtaining seedlings with reduced cost. The present study aims to obtain seedlings of bamboo Guadua Chacoensis by cuttings. The study was carried out at the Universidade Tecnológica Federal do Paraná - Câmpus Dois Vizinhos. The experimental design used was in randomized blocks, in factorial 2 x 3 x 3 (section x AIB x environment), two types of section were used, basal and apical. The AIB solutions used will differ according to the concentration to be applied, being these of 500 and 1000 mg. L-¹. The vegetal material was conditioned in three ambient conditions, being in greenhouse with shading screen, condition of greenhouse with plastic film of 100 microns and open sky condition. Four replicates were performed with 4 stakes each. Evaluations occurred at 90 days with analysis of presence and / or absence of new shoots, shoot length and mortality rate. The presence and / or absence of roots and root length were also evaluated. At the end of the study it is expected to improve the production of bamboo seedlings of Guadua Chacoensis species, verifying the best auxin concentration (AIB), environmental conditions and type of section ideal for promoting new seedlings.