INFLUENCE OF HEAT AND CURE PRESERVATIVES ON RESIDUES OF SULFAMETHAZINE, CHLORAMPHENICOL, AND CYROMAZINE IN MUSCLE-TISSUE
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Two applications at three rates of 16 natural and commercial plant growth bioregulators were sprayedon growing cotton Gossypium hirsutum L. to evaluate their effects on levels of nutrients and allelochemicals, on any induced plant resistance to the tobacco budworm Heliothis virescens Fab., and on yield of seed cotton. In uninfested cotton, Pix, BAS-105, and V-3183 significantly decreased yield, while gibberellic acid (GA) increased yield. In infested cotton, PIX, BAS-105, BAS-109, V-2307, and V-3183 significantly decreased yield, while kinetin significantly increased yield. V-2307 and CCC decreased flavonoids by 19% each in leaves and squares, respectively, while arabinogalactan increased flavonoids by 60% in squares. BAS-109 increased leaf tannins by 27%. V-2307 decreased leaf anthocyanins by 53% while GA and V-3183 increased leaf anthocyanins by 28 and 39%, respectively. There appeared to be a trend that flavonoids generally were increased where yields were increased. Two cytokinins, Kinetin and Burst, tended to increase yield, pest resistance, and flavonoids. 1988, American Chemical Society. All rights reserved.
