Diurnal variations of nonstructural carbohydrates and nutritive value in timothy.

Morin, C., Bélanger, G., Tremblay, G.F., Bertrand, A., Castonguay, Y., Drapeau, R., Michaud, R., Berthiaume, R.R., and Allard, G. (2012). "Diurnal variations of nonstructural carbohydrates and nutritive value in timothy.", Canadian Journal of Plant Science, 92(5), pp. 883-887. doi : 10.4141/cjps2011-272  Access to full text

Abstract

Nonstructural carbohydrate (NSC) concentration in timothy (Phleum pratense L.) increased during the day by 16 to 41 g kg-1 DM (+23 to 137%) in spring and summer growth cycles and reached a maximum value between 12.8 and 13.2 h after sunrise in an area with 15 to 16 h of day length. This increase in NSC concentration was generally accompanied by a decrease in concentrations of neutral detergent fiber (−2 to 6%), acid detergent fiber (−1 to 7%), and N (−6 to 11%).

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