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    Author(s): P. A. Hedin; J. N. Jenkins; J. C. McCarty; J. E. Mulrooney; W. L. Parrott; A. Borazjani; C. H. Graves; T. H. Filer
    Date: 1984
    Source: In: Bioregulators: Chemistry and Uses. ACS Symposium Series 257. Washington, D.C.: American Chemical Society. 171-191.
    Publication Series: Paper (invited, offered, keynote)
    Station: Southern Forest Experiment Station
    PDF: View PDF  (731.94 KB)

    Description

    The growth regulator, PIX (mepiquat chloride - 1,1-dimethyl-piperdinium chloride), when applied to cotton (Gossypium hirsutum L.) and pecan (Carya illinoensis Koch), caused internode shortening. PIX did not elicit an increase in resistance in cotton to the tobacco budworm (Heliothis virescens (Fab.)], or in pecan to pecan scab (Cladosporium caryigenum (Ell. et Lang) Gottwald]. Also, changes in content of four known allelochemicals (condensed tannins, gossypol, anthocyanins, flavonoids) for these pests were minimal. An unexpected finding was the increase in content of several nutritional factors that may be related to greater, rather than lesser, growth of tobacco budworm larvae feeding on cotton tissues.

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    Citation

    Hedin, P. A.; Jenkins, J. N.; McCarty, J. C., Jr. [and others]. 1984. Effects of 1,1-Dimethylpiperidinium Chloride on the Pests and Allelochemicals of Cotton and Pecan. In: Bioregulators: Chemistry and Uses. ACS Symposium Series 257. Washington, D.C.: American Chemical Society. 171-191.

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