Studies on the productivity of tropical pasture plants. IV.* Separation of photosynthetic and respiratory components of net assimilation rate by growth analysis and gas exchange techniques under natural lighting

Heslehurst M.R. and Wilson G.L. (1974) Studies on the productivity of tropical pasture plants. IV.* Separation of photosynthetic and respiratory components of net assimilation rate by growth analysis and gas exchange techniques under natural lighting. Australian Journal of Agricultural Research, 25 3: 415-424. doi:10.1071/AR9740415


Author Heslehurst M.R.
Wilson G.L.
Title Studies on the productivity of tropical pasture plants. IV.* Separation of photosynthetic and respiratory components of net assimilation rate by growth analysis and gas exchange techniques under natural lighting
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1974-01-01
Sub-type Article (original research)
DOI 10.1071/AR9740415
Volume 25
Issue 3
Start page 415
End page 424
Total pages 10
Language eng
Subject 1100 Agricultural and Biological Sciences
Abstract The growth analysis technique for the separation of photosynthetic and respiratory components of net assimilation rate used in previous controlled environment studies of early vegetative growth was extended to natural lighting conditions. The use of short-wave radiation rather than days in the light as the quantification of photosynthetic opportunity in the regression analysis improved the accuracy of estimation of photosynthesis and respiration. In one experiment, concurrently with the growth analysis procedure, carbon dioxide exchange measurements were made on one grass and one legume. There was good agreement between the two methods in the estimates obtained. The data support conclusions from previous experiments concerning the superior growth rate of grasses. Species rankings were similar in both sets of experiments.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 25 Jul 2017, 00:03:52 EST by System User