publication . Article . Other literature type . 2005

Respostas de plantas de Schizolobium amazonicum [S. parahyba var. amazonicum] e Schizolobium parahyba [Schizolobium parahybum] à deficiência hídrica

Carvalho, Cláudio José Reis de;
Open Access English
  • Published: 01 Dec 2005 Journal: Revista Árvore (issn: 0100-6762, eissn: 1806-9088, Copyright policy)
  • Publisher: Sociedade de Investigações Florestais
Abstract
Juvenile plants of S. amazonicum (paricá) and S. parahyba (guapuruvu) were subjected to two cycles of water stress in greenhouse conditions. The water deficit induced the increase in total soluble amino acids, proline, total soluble sugars and K+ contents in the leaf tissues, lowering osmotic potential values in both species. However, the analysis of the pressure-volume curve results suggests that the species respond differently to water stress, and that S. amazonicum presents greater capacity of osmotic adaptation than S. parahyba.
Subjects
free text keywords: Paricá, guapuruvu, estresse hídrico, osmorregulação, pressão-volume, potencial osmótico, water stress, osmoregulation, pressure-volume, osmotic potential, Forestry, SD1-669.5
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