Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by SMITH, D. R.
Right arrow Articles by THORPE, T. A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by SMITH, D. R.
Right arrow Articles by THORPE, T. A.
Agricola
Right arrow Articles by SMITH, D. R.
Right arrow Articles by THORPE, T. A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 1975 Oxford University Press

RESEARCH-ARTICLE

Root Initiation in Cuttings of Pinus radiata Seedlings

II. GROWTH REGULATOR INTERACTIONS

DALE R. SMITH and TREVOR A. THORPE

Department of Biology, University of Calgary Calgary, Alberta T2N IN4, Canada

Effects of exogenous growth regulators are related to the histological events in adventitious root initiation in hypocotyls of Pinus radiata D. Don. Indolebutyric acid (IBA) is required both for the pre-initiative and post-initiative phases in root development. Kinetin has a marked inhibitory effect over the pre-initiative phase, with escape from inhibition following establishment of meristemoids. Gibberellic acid (GA3) has three distinct effects depending on time of application. While inhibitory during the pre-initiative phase, it strongly enhances rooting if applied at a time coincident with the first observable stage of root initiation. If applied following establishment of meristemoids, GA3 inhibits root formation.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J Exp BotHome page
T. Kuroha, H. Kato, T. Asami, S. Yoshida, H. Kamada, and S. Satoh
A trans-zeatin riboside in root xylem sap negatively regulates adventitious root formation on cucumber hypocotyls
J. Exp. Bot., November 1, 2002; 53(378): 2193 - 2200.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.