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Improvement of HVI Measurement Precision. Part 1: Use of HVI for Breeding Programs; MCI Sampling Device Effect

Jean-Paul Gourlot, Michèle Vialle, Serge Lassus, Sandrine Duplan, Chantale Brunissen, Véronique Fallet


The Motion Control 3500 line in our laboratory was fitted successively with a pinch sampler then a universal sampler. The precision of the results obtained with this HVI line fitted with the different samplers was evaluated. Roller-ginned samples required considerably more measurements to obtain the same precision as those that had been saw ginned. A comparison of the within-sample variances showed that the results obtained with the universal sampler were less precise than with the pinch sampler for saw-ginned cottons. The precision of the two systems was identical for roller-ginned samples.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 1317 - 1322
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998