Articles
GENETIC VARIATION IN THE RATE OF ASPARAGUS FERN PHOTOSYNTHESIS
Article number
479_11
Pages
93 – 100
Language
Abstract
The hypothesis that variation in asparagus yield between different cultivars might result, at least in part, from differences in the rate of photosynthesis of the asparagus fern was examined.
Photosynthetic activity was investigated in asparagus plants of three cultivars – UC-157, Jersey Giant and Karapiro- representing low, intermediate and high levels of annual spear yield, respectively.
The light-saturated rate of fern photosynthesis, Asat, varied between cultivars and was positively-correlated with annual spear yield, for both mature, harvested plants and 9-month old seedlings.
Mathematical analysis of A/Ci curves revealed that both stomatal and non-stomatal limitations to photosynthesis contributed to the observed differences in the rate of photosynthesis.
Photosynthetic activity was investigated in asparagus plants of three cultivars – UC-157, Jersey Giant and Karapiro- representing low, intermediate and high levels of annual spear yield, respectively.
The light-saturated rate of fern photosynthesis, Asat, varied between cultivars and was positively-correlated with annual spear yield, for both mature, harvested plants and 9-month old seedlings.
Mathematical analysis of A/Ci curves revealed that both stomatal and non-stomatal limitations to photosynthesis contributed to the observed differences in the rate of photosynthesis.
Publication
Authors
M.J. Faville, T.G.A. Green, W.B. Silvester, W.A. Jermyn
Keywords
Online Articles (65)