volume 67, issue 3, P274-279 2010
DOI: 10.1590/s0103-90162010000300004
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Abstract: ABSTRACT: Direct seeding is one of the most promising methods in restoration ecology, but low field seedling emergence from pioneer tree seeds still reduces its large scale applicability. The aim of this research was to evaluate seed priming for the pioneer tree species Guazuma ulmifolia. Priming treatments were selected based on seed hydration curves in water and in PEG 8000 solution. Seeds were primed in water for 16 h and in Polyethylene glycol -PEG 8000 (-0.8 MPa for 56 and 88 h) at 20°C to reach approxim…

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