Wednesday, 4 January 2006
4:30 PM - 10:00 PM
Thursday, 5 January 2006
10:00 AM - 10:00 PM
Friday, 6 January 2006
8:00 AM - 5:00 PM

The Effects of Water Stress During Bloom on Lint Yield, Fiber Quality and Price

Shane Osborne1, J.C. Banks1, Elizabeth Wallace2, and William Stehr2. (1) Oklahoma State University, 16721 US Highway 283, Altus, OK 73521, (2) Western Oklahoma State College, 2801 North Main Street, Altus, OK 79521

The market price of cotton is based primarily on five quality characteristics: color, length, strength, micronaire and uniformity. Of these properties, length, micronaire and uniformity are the characteristics most affected by management. Cotton's fiber quality is a function of both genetics and environment. As producers, our only opportunity to affect fiber quality, beyond variety selection (genetics), is through the management of this environment. Although the initial timing of irrigation is primarily determined by the producer, often times the frequency of irrigation is dictated by the actual water supply. Producers challenged with the task of maximizing profitability with a limited supply of irrigation water face tough decisions in regards to when and how often to irrigate. The objective of this study was to determine the impact of water stress on cotton fiber quality and the potential difference in market price. Replicated eight row by 500' plots were irrigated either conventionally or had irrigation withheld to induce stress. Plots will be harvested and subjected to HVI fiber analysis to compare the effects of water stress on lint yield, fiber quality and price.

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See more of The Beltwide Cotton Conferences, January 3-6 2006