Position and depth of sowing on the emergence and early development of seedlings of Anacardium microcarpum Ducke

Abstract

The objective of this work was to evaluate the emergence and initial development of seedlings cajuí [Anacardium microcarpum Ducke], as function on the position and depth of sowing. The work was conducted in a greenhouse using a randomized block in randomized 5x3 factorial , with the factors consisting of five positions (A - hilum down, B - hilum up, C - hilum and “back” a side, D - “back” down, and E - “back” up ) and three sowing depths (two, four and six cm), with four replications. At 60, 90 and 120 days after emergence (DAE) evaluated the plant height and stem diameter, and at 120 days was evaluated dry mass of shoots and roots, root length, number of leaves, leaf area index, speed of emergence and morphological parameters: plant height/stem diameter, dry weight of shoot/root dry biomass and quality index Dickson (IQD). The best development and final quality of seedlings cajuí is when the seeds are deposited to two inches deep with the hilum down or “back” up.