Open AccessACLIMATAÇÃO E FISIOLOGIA DE MUDAS DE GUANANDI CULTIVADAS EM TELAS DE SOMBREAMENTO FOTO-PROTETORAS
Author(s) -
Gustavo Francisco Rosalin Saraiva,
Gustavo Maia Souza,
João Domingos Rodrigues
Publication year - 2014
Publication title -
colloquium agrariae
Language(s) - English
Resource type - Journals
ISSN - 1809-8215
DOI - 10.5747/ca.2014.v10.n2.a102
Subject(s) - shading , humanities , geology , art , visual arts
The luminosity is the most important factor in the growth and development of seedlings. Plants\udcan change their growth model and resource allocation in response to the light environment.\udBiometric, biochemical and physiological parameters of Guanandi seedlings grown in full sun and\udunder 50% shade using photo-converter (blue, black and red) screens were evaluated and\udanalyzed in the summer and fall of 2012 The seedlings grown in full sunlight showed higher\udquality, vigour and mass accumulation. The screens have changed the microclimate, causing\udchanges in gas exchange and limiting the growth of seedlings. The activity of antioxidant enzymes\udshowed that the treatments did not cause oxidative stress. Guanandi presented ample capacity for\udacclimation to shade and full sun. However performed better in full sun, even been considered\udlate climax species