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Analysis of the Variability of Fiber Quality

P. Clouvel, J.L. Chanselme, M. Cretenet, E. Jallas and R. Sequeira


 
ABSTRACT

Research conducted at the CIRAD experiment station, Montpellier, France during 1995 and 1996 aimed to characterize the variability of fiber quality properties in terms of the driving factors: water and nitrogen supply. The choice of the fruit capsule (the boll) as the unity of production permitted to analyze the variability between experimental treatments as well as between individual plants in a given field. A model of decomposition of the lint index is proposed to link production (mass) to fiber quality characteristics such as the fiber length and lineic fineness. The approach is exemplified in this document by presenting the relations which were found between the number of fibers per seed and fiber length, two yield components which develop in succession. Based on the 1995 results, it appears that an important proportion of the variability in observed length is explained by competition phenomena between fibers within a seed and within a boll. The present results need to be validated but they may offer a theoretical mechanism to explain the factors which determine fiber length.



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1415 - 1417
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998