Note: You are reading this message either because you can not see our css files, or because you do not have a standards-compliant browser.

LOGO: Journal of Cotton Science


Carbon Allocation in Cotton Grown in CO2 Enriched Environments

Authors: Jack Mauney
Pages: 232-236
Molecular Biology and Physiology
DOI: (

Many studies have used CO2 -enriched environments to identify the factors limiting growth and productivity of the cotton crop. This review focuses on the allocation of carbohydrates within the plant in these environments. Three pools of carbohydrates have been shown to be altered significantly by CO2 enrichment. 1) Leaf starch is increased during the day and mobilized for night utilization; 2) starch deposition in the stems increases during the juvenile period of growth and is utilized during the boll filling period, and 3) starch deposition is increased in roots during the juvenile and early fruiting period. This enables the roots to remain more active during the heavy demand of fruit maturation. The expansion of these three pools of deposition enables the cotton crop to utilize the higher photosynthetic rate to a greater degree than other crops. The activity in these pools determines the growth and productivity of the crop at ambient CO2.