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Published in Crop Sci 14:549-551 (1974)
© 1974 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Analysis of the Exponential Growth Equation1

James M. McKinion, J. D. Hesketh and D. N. Baker2

Solutions for growth equations that estimate dry matter from photosynthetic, respiratory, and photosynthetic area variables were tested by using field data for cotton (G. hirsutum L. var. ‘Deltapine Smoothleaf’). The equations based on assumptions of exponential leaf area expansion and exponential extraction of light by leaves fitted the data test. A leaf area expansion function that depends upon morphogeneticv ariables should improve the fit.

Key Words: Mathematical modeling • Growth analysis • Linear differential equation

1 Contri~ution from the Cotton Production Unit (Biological Systems) 3SDA-ARS, Southern Region, in cooperation with the Mississippi Agricultural and Forestry Experiment Station.

2 Electrical Engineer and Research Soil Scientists, respectively, ARS, USDA, Cotton Production Research, Mississippi State, Mississipp.

Received for publication November 14, 1973.




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