TY - JOUR
AU - Hesketh, J.
AB - Published November, 1965 Photosynthesis Among Species in Relation to Characteristics of Leaf Anatomy and CO Diffusion I Resistances M. 2 EI-Sharkawy and J. Hesketh IFFERENCES in photosynthesis of single leaves in on Photosynthesis No. 1, 1965. Prepared by M. EI-Sharkawy and J. Hesketh). intense light and 300 ppm COo have been observed Theoretical equations for determining resistances to CO.o diffu- among species (3). Three causes of such differences have sion into the leaf have been derived by Gaastra (4), where been proposed (3): (a) the existence of some kind ’P = [(CO=)= -- (CO.~)~,]/(r~ + r, + rm)oo=, [1] respiratory COo leakage into the intercellular air spaces T = [(H.-O) ........... -- (H,.,O).]/(r. -~- r~)u=o, [2] and/or out of the leaf in intense light and during active and Evaporation = [(H=O) ....... -- (H=O),]/(r,)u~o. [3] photosynthesis; (b) stomatal diffusion resistances asso- (r,)u=o and (r,)u=o can be calculated from [2] [3] by ciated with lack of stomata in the top surface of some assuming the air to be saturated with water vapor at the :air-cell leaves; and (c) a difference between warm-climate and interfaces inside the leaf or at the evaporating surface inside the cool-climate species which is thought to 
TI - Photosynthesis among Species in Relation to Characteristics of Leaf Anatomy and CO2 Diffusion Resistance1
JF - Crop Science
DO - 10.2135/cropsci1965.0011183X000500060010x
DA - 1965-11-01
UR - https://www.deepdyve.com/lp/wiley/photosynthesis-among-species-in-relation-to-characteristics-of-leaf-Ey5dgZakU1
SP - 517
EP - 521
VL - 5
IS - 6
DP - DeepDyve
ER -