Affordable Access

Publisher Website

Decline of vegetative growth inCoffea arabicaL. in relation to leaf temperature, water potential and stomatal conductance

Authors
Journal
Field Crops Research
0378-4290
Publisher
Elsevier
Publication Date
Volume
54
Issue
1
Identifiers
DOI: 10.1016/s0378-4290(97)00045-2
Keywords
  • Coffee Growth
  • Solar Radiation
  • Leaf And Air Temperatures
  • Stomatal Conductance
  • Vapour Pressure Deficit
  • Water Potential

Abstract

Abstract The decline of vegetative growth of Arabica coffee trees in Viçosa (20° 45′ S, 650 m altitude), Brazil, occurring from mid-March through late May, was observed in both irrigated and non-irrigated plants and did not show a direct relation with leaf water potential. Declining growth coincided with lowering temperatures, and particularly with increasing daily periods with low temperatures. Stomatal conductances in the morning (0800–0900 h) were relatively high until mid-March and decreased gradually in parallel with declining growth rates. During the quiescent growth phase in the cool season, starting from late May, stomata were closed for most of the diurnal period.

There are no comments yet on this publication. Be the first to share your thoughts.