Root system morphology of Quercus rubra L. planting stock and 3-year field performance in Iowa

New Forests ◽  
1995 ◽  
Vol 9 (3) ◽  
pp. 225-236 ◽  
Author(s):  
J. R. Thompson ◽  
R. C. Schultz
1993 ◽  
Vol 10 (3) ◽  
pp. 105-111 ◽  
Author(s):  
James J. Zaczek ◽  
Kim C. Steiner ◽  
Todd W. Bowersox

Abstract Northern red oak planting trials were established in three clearcuts in Pennsylvania to evaluate field performance in relation to type of planting stock (1-0, 2-0, 1-1, 2-1, containerized direct-seeded) and other treatments (undercutting in the nursery, top-clipping at planting time, hormone treatment of roots). All treatments were planted simultaneously, and most employed the same genetic material. After 3 yr in the field, seedlings that had been grown for 2 yr in 7.9-1 pots were tallest and had the best survival, but this stock was expensive to produce and difficult to plant. The 2-0 bareroot stock performed best among remaining treatments, especially if the seedlings had been undercut in the nursery. Undercutting was not beneficial to the performance of 1-0 seedlings. Top-clipping and a hormone treatment had little effect on performance. Seedlings from direct-seeding were as tall as those from 1-0 stock. The advantage of 2-0 stock over 1-0 stock was partly, but not entirely, attributable to its larger size. North. J. Appl. For. 10(3):105-111.


2009 ◽  
Vol 66 (5) ◽  
pp. 504-504 ◽  
Author(s):  
Douglass F. Jacobs ◽  
K. Francis Salifu ◽  
Anthony S. Davis
Keyword(s):  

1970 ◽  
Vol 46 (4) ◽  
pp. 329-331
Author(s):  
W. Stanek

Plastic, bullet-shaped containers 2.5 and 4.5 inches long were suitable for producing healthy and vigorous yellow birch planting stock in the greenhouse. The larger containers favored the growth of taller plants with a better root system. In field trials, roots became established outside the containers during the first year of growth but did not break the plastic casing. After the first winter in the open nearly two-thirds of the seedlings had survived, but only one-third of them were in good condition.


2016 ◽  
Vol 06 (03) ◽  
pp. 163-176 ◽  
Author(s):  
J. W. Van Sambeek ◽  
Larry D. Godsey ◽  
William D. Walter ◽  
Harold E. Garrett ◽  
John P. Dwyer

2000 ◽  
Vol 57 (2) ◽  
pp. 101-111 ◽  
Author(s):  
Didier Garriou ◽  
Sabine Girard ◽  
Jean-Marc Guehl ◽  
Beno�t G�n�r�

1992 ◽  
Vol 22 (1) ◽  
pp. 56-61 ◽  
Author(s):  
A.B. Anderson ◽  
L.J. Frampton Jr. ◽  
S.E. McKeand ◽  
J.F. Hodges

To study differences in growth between loblolly pine (Pinustaeda L.) tissue-culture plantlets and seedlings, shoot systems of plantlets and seedlings were grafted onto plantlet and seedling root systems. After three growing seasons, plantlet root systems accounted for 0.3 m of height growth loss and 1.0 cm of loss in basal diameter, while plantlet shoot systems accounted for 0.6 m of height growth loss and 1.4 cm of loss in basal diameter. The mature-appearing morphology of plantlet shoots was due to the shoot system of plantlets and not to the indirect effect of the plantlet root system.


2012 ◽  
Vol 51 (No. 12) ◽  
pp. 548-558
Author(s):  
A. Bártová ◽  
O. Mauer

The goal of the study was to verify the effect of growth substances from the group of auxinoids on the root system of European beech and Scots pine planting stock. The effect of growth substance application date (spring, summer dipping), the type of growth substance used (IBA, NAA), and the exposition to the growth substance (1, 2, <br />5 hours) were studied. The tests showed that the application of NAA and IBA did not stimulate the root system growth in Scots pine at any exposition of root systems to the growth substances. European beech exhibited a favourable effect of the 5-hour IBA exposition in the spring dipping. The summer dipping of European beech did not show a complex beneficial effect on the root system development at any of the expositions.


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