Effect of Concentration and Time of Application of the Defoliant Harvade on the Lint, Seed, Protein and Oil Yields, and Oil Properties of Cottonseed
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Published:1988-01
Issue:1
Volume:24
Page:123-127
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ISSN:0014-4797
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Container-title:Experimental Agriculture
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language:en
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Short-container-title:Ex. Agric.
Author:
Sawan Z. M.,Hefni EL-S. H. M.,Allam M. A.
Abstract
SUMMARYField experiments were performed in 1981 and 1982 on the cotton cultivar Giza 75 to determine the effect of different concentrations and application dates of the defoliant Harvade on the lint, seed, protein and oil yields, and oil properties of cottonseed. Defoliant concentrations of 240, 360 and 480 ml ha−1 increased lint yield per plant but tended to decrease seed index. Cottonseed yield per hectare, seed oil and protein percentage and yield, oil refractive index, free fatty acids, saponification and iodine values were not significantly affected by the defoliant. Late application increased lint yield per plant and cottonseed, oil and protein yield per hectare. Date of application had no effect on seed index, seed oil and protein percentage and oil properties.
Publisher
Cambridge University Press (CUP)
Subject
Agronomy and Crop Science
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