EXAMINING THE EFFECTS OF 1-METHYLCYCLOPROPENE ON COTTON LINT YIELD.

Autor: Scheiner, Justin J., Bynum, Josh, Cothren, J.T.
Zdroj: Proceedings of the Beltwide Cotton Conferences; 2007, p1277-1279, 3p, 3 Charts
Abstrakt: In cotton, fruit abscission and senescence are common physiological responses to environmental stress. Research indicates that stress elicits an increase in ethylene production to levels capable of causing abscission of young fruit. Consequently, early season fruit loss can lead to a decline in yield. The ethylene action inhibitor, 1- methylcyclopropene (1-MCP), is used in a variety of fruit, vegetable, and flowering crops to counter the effects of ethylene. In 2005, a two year field study was conducted at the Texas Agricultural Experiment Station in Burleson County, Texas to determine the effect of 1-MCP concentration and timing on cotton growth and yield. The study was arranged as a randomized complete block design with four replications. There were fourteen treatments consisting of three rates of 1-MCP applied at various reproductive stages. Parameters measured in this study included a variety of growth, reproductive, and senescence measurements. In 2005, lint yield was enhanced by six of the 1-MCP treatments. However, there were no significant differences between treatments for lint yield in 2006. In both years of this study, application of 1-MCP had no effect on square shed and did not significantly delay senescence processes: chlorophyll degradation and electrolytic leakage. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index
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