93-8 Development of a Plant-Based Method for Cotton Cultivar Maturity Classification.



Monday, October 17, 2011: 3:00 PM
Henry Gonzalez Convention Center, Ballroom C-1, Ballroom Level

Tyler Painter1, Craig Bednarz2, Dick Auld3 and Glen Ritchie1, (1)Texas Tech University, Lubbock, TX
(2)Bayer CropScience, Lubbock, TX
(3)Plant & Soil Science Dept., Texas Tech University & Texas AgriLife Reserch, Lubbock, TX
Maturity is a significant part of cotton production and can affect yield, quality, and suitability to an environment. Field experiments were conducted in 2010-2011 with ten cotton cultivars in a randomized complete block design with four replications in two locations. The objective of the experiment was to determine maturity across environments using height; nodes; nodes above first square, white flower, and cracked boll; and end of season within-plant boll distribution. The whole-plot lint and the lint from each zone and uppermost fraction were measured by HVI and AFIS to determine the fiber properties.  In 2010, some cultivars showed strong significance between early, mid, and late maturity, while other cultivars did not differ significantly between the three stages of maturity.
See more from this Division: C02 Crop Physiology and Metabolism
See more from this Session: General Crop Physiology & Metabolism: I