Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Effects of Foliarly Applied Desiccants on Selected Species under Tropical Environment

R. W. Bovey
Weed Science
Vol. 17, No. 1 (Jan., 1969), pp. 79-83
Stable URL: http://www.jstor.org/stable/4041460
Page Count: 5
  • Read Online (Free)
  • Download ($29.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effects of Foliarly Applied Desiccants on Selected Species under Tropical Environment
Preview not available

Abstract

Several contact and growth-regulator herbicides were evaluated as desiccants on greenhouse-grown cucumbers (Cucumis sativus L., var Ashly), sorghum (Sorghum bicolor L. Moench, var. Combine Kafir-60), mango (Mangifera indica L.), and field-grown guava (Psidium guajava L.). Pentachlorophenol (PCP) and 4,6-dinitro-o-sec-butylphenol (DNBP) consistently acted the fastest among compounds applied on several species. Herbicides such as 1,1′-dimethyl-4,4′-bipyridinium salt (paraquat) 6,7-dihydrodipyrido (1,2-a:2′c)pyrazidiinium salt (diquat), and the butyl esters of 2,4-dichlorophenoxyacetic acid plus 2,4,5-trichlorophenoxyacetic acid (2,4-D:2,4,5-T) were equally effective within 3 days after treatment of some species. Several other herbicides and herbicide mixtures were evaluated. Herbicide specificity and speed of desiccation varied with species. Adjuvants increased the phytotoxicity of some herbicides.

Page Thumbnails

  • Thumbnail: Page 
79
    79
  • Thumbnail: Page 
80
    80
  • Thumbnail: Page 
81
    81
  • Thumbnail: Page 
82
    82
  • Thumbnail: Page 
83
    83