Subfreezing and freezing temperatures in mature rubber tree leaves

Authors

  • José Pires de Lemos Filho
  • Hilton Silveira Pinto
  • Olinto Gomes da Rocha Neto

DOI:

https://doi.org/10.1590/S1678-3921.pab1991.v26.3433

Keywords:

<i>Hevea brasiliensis</i>, thermal analysis, iron-constantan thermocouples, Conviron chambers

Abstract

Subfreezing and freezing temperatures in Hevea brasiliensis leaves were determined by thermal analysis using iron-constantan thermocouples. The measurements were done in mature leaves of plants cultivated in Conviron chambers, simulating spring/autumm and winter conditions. Subfreezing and freezing temperatures were found to be -7.5°C and -4.8°C, respectively. These values were inferior than those observed for coffee tree and sugar cane, suggesting higher cold resistance for rubber tree.

Downloads

Published

1991-07-01

How to Cite

de Lemos Filho, J. P., Pinto, H. S., & Neto, O. G. da R. (1991). Subfreezing and freezing temperatures in mature rubber tree leaves. Pesquisa Agropecuaria Brasileira, 26(7), 995–1000. https://doi.org/10.1590/S1678-3921.pab1991.v26.3433

Issue

v.26, n.7, jul. 1991

Section

PLANT PHYSIOLOGY