Influência de diferentes níveis de sombreamento e aclimatação no estabelecimento pós plantio de mudas de Tento Vermelho (Adenanthera pavonina L.) em áreas alteradas

Abstract

The need to produce seedlings for commercial plantation and reclamation has promoted the development of technologies that involve the reduction of the costs of managing these seedlings in the nursery, resistant and good development in the field . This study evaluates the influence of different levels of shading and acclimatization in establishing post planting seedlings try red (Adenanthera pavonina l.) In altered areas. The seedlings were grown in the nursery at the Federal University of Amazonas, located in the southern sector of the Campus. The planting was carried out in an area already altered at the Experimental Farm of the university itself. After a period of six months in environments with shading, 50 % of the seedlings of each treatment with shading through the process of acclimatization / hardening, then go to the field, along with other non-acclimated. The spacing between seedlings in the field was 2.5 x 2.5 m, with pits of 40x40x40cm, the seedlings were taken to the field with about 7 months old . The variables used to assess the morphological development of the seedlings were stem diameter ( D ) , shoot height ( H ) and survival. Data were subjected to analysis of variance and means were compared by Tukey test at 5 % probability using free software Sisvar. For this study it can be concluded that the Adenanthera pavonina L. seedlings the nursery phase are favored in shaded environments and acclimation / hardening, trona is dispensable for the establishment / development and survival of the seedling.