About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in AJ

  1. Vol. 79 No. 3, p. 587-590
    Received: July 21, 1986

Request Permissions


A Hot-Wire Technique for Girdling Stems and Petioles of Herbaceous Plants1

  1. Steven A. Dewey,
  2. David O. Chilcote and
  3. Arnold P. Appleby2



Girdling is often useful in studying translocation of herbicides, plant-growth regulators, and natural plant components. A hot-wiretechnique for girdling petioles and stems of herbaceous broadleaf plants using two girdling instruments was studied. One apparatus used AC current to heat a loop in a copper wire. Current was regulated with a rheostat. The other device was a battery-powered medical cautery instrument with a modified nichrome wire loop. With either device, the hot wire was passed back and forth along a 20- to 30-mm section of petiole or stem until cellular collapse was evident, usually 30 to 60 s. Girdling essentially eliminated basipetal movement of 14C-assimilate but did not reduce acropetal translocation of simazine (6-chloro-AyV-diethyl-l,3,5-triazine-2,4-diamine), an apoplastically mobile herbicide, in tall morningglory [Ipomoea purpurea (L.) Roth]. The method is quick and allows precise placement of girdles

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .