Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2011 Sep 26;108(7):1365–1380. doi: 10.1093/aob/mcr238

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author 2011. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited

PMC Copyright notice

Fig. 5. — Sensitivity of McCree equation plots [McCree, 1970, p. 227; our eqn (2)] to the principal parameters of the model (Fig. 1, Table 1b). A 12-h daylength is applied followed by 12-h darkness. Light during the day was varied from near zero to 1000 J (PAR) m⁻² s¹ (4600 µmol PAR m⁻² s⁻¹). Plants are in 24 h exponential growth, attained after a few days from low initial values (Table 1a). The continuous line is for the default parameter values (Table 1b). (A) Growth efficiency, Y_G; (B) recycled fraction, f_rec; (C) senescence rate constant, k_X; (D) substrate utilization rate constant, k_S; (E) fractional daylength, f_dl. In each case approximate corresponding values of the parameters of eqn (2) are given in brackets: (slope, k; intercept, c); (McCree, 1970, p. 227). Specific 24-h respiration ρ_24h and specific daily gross photosynthesis π_g,day are calculated in eqns (48).