JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Home
    Obituary: Dr. R. C. Dalela
    Editorial Board
    Reviewer Panel
    Publication Policies
    Guidelines for Editors
    Guidelines for Reviewers
    Abstracting and Indexing
    Subscription and Payments
    Contact Journal
    About Triveni Enterprises
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Guidelines for Authors
    Terms and Conditions
    Author Resources
    Fees and Payments
    Track Paper Status
 

Google Search the Journal web-site:


    Abstract - Issue 2 2012, 33 (2)                                     Back


nstantaneous and historical temperature effects on a-pinene

Effects of “short” photoperiods on seedling growth of Pinus brutia

 

Author Details

 

V. Iakovoglou

Department of Forestry and Management of the Natural Environment, TEI Kabalas, Drama 66100,

Greece

K. Radoglou

(Corresponding author)

Forest Research Institute, National Agricultural Research Foundation, Vassilika 57006, Thessaloniki, 

Greece

e-mail: radoglou@fri.gr

P. Kostopoulou

Forest Research Institute, National Agricultural Research Foundation, Vassilika 57006, Thessaloniki,

Greece

O. Dini-Papanastasi

Forest Research Institute, National Agricultural Research Foundation, Vassilika 57006, Thessaloniki,

Greece

 

 

Publication Data

Paper received:

13 August 2010

 

Revised received:

08 February 2011

 

Accepted:

16 February 2011

 

Abstract

This study investigated how nurseries could benefit by inducing “short” photoperiods as low as 4 hr to produce “better” seedlings characterized by more vigorous roots; a substantial feature to overcome transplanting stress. The carryover effect of the photoperiod was also investigated on seedlings that grew for 30 days more  under the consistent 14 hr photoperiod.  Seedlings of Pinus brutia were subjected to 4, 6, 8 and 14 hr photoperiod for 3 week.  Fifteen seedlings were used to evaluate the leaf area, the root and shoot dry weight and their ratio.  Six and sixteen seedlings were used to evaluate the shoot electrolyte leakage and the root growth potential, respectively.  Based on the results, the 6 and 8 hr photoperiod indicated greater root allocation (4.8 and 4.9 mg, respectively) and chlorophyll content (3.7 and 4.4, respectively). They also indicated greater leaf area values (3.3 and 3.5 cm2, respectively) along with the 14 hr (3.4 cm2). The photoperiod effect continued even after seedlings were subjected at consistent photoperiod.  Overall, “short” photoperiods could provide “better” P. brutia seedlings to accommodate immediate massive reforestation and afforestation needs.

Key words

Afforestation, Pinus brutia, Reforestation, Short photoperiod  

 

Copyright © 2012 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).

Â