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Published online 1 March 1970
Published in Agron J 62:250-251 (1970)
© 1970 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Factors Affecting Stalk Strength and Flexibility in Sugarcane

Norman I. James and Garry A. Smith2

The primary objective of this study was to determine the effect of distribution of fibrovascular bundles on stalk strength and flexibility in sugarcane (Saccharum spp.). Differences in distribution of fibrovascular bundles within the stalk accounted for less than 1% of the variation in strength of single stalks selected at random from 137 clones. About 76% of the variation in stalk strength was attributed to differences in diameter and percent fiber of stalks. Standard partial regression coefficients indicated that stalk diameter was more than twice as important as percent fiber in predicting stalk strength. Less than 1% of the variation in stalk flexibility was attributed to the combined effect of distribution of fibrovascular bundles, total number of fibrovascular bundles, stalk diameter, and percent fiber of stalks.

Key Words: Fiber percentage • Salk diameter • Fibrovascular bundle distribution

2 Research Agronomist and formerly Research Geneticist (present address: Crops Research Laboratory, Colorado State University, Fort Collins, Colo. 80521), Tobacco and Sugar Crops Research Branch, Crops Research Division, U. S. Department of Agriculture, Agricultural Research Service, Canal Point, Fla. 334;i8.

Received for publication August 25, 1969.




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Copyright © 1970 by the American Society of Agronomy.