Featured Research

from universities, journals, and other organizations

Planting depth affects popular landscape tree

Date:
April 21, 2010
Source:
American Society for Horticultural Science
Summary:
Landscape trees produced in container nursery systems are replanted one to two times into larger containers, a practice known as "up-canning." Problems can arise when trees are planted either too deep or too shallow at each up-canning. Results indicted that final growth in the field was related to factors other than the up-canning practices associated with planting depth during container production.

Landscape trees are increasingly being produced using container nursery systems rather than traditional field production practices. In contrast to field production techniques, successful container production requires a series of transplanting events in which trees are sequentially transferred to larger containers, a practice known as "potting-up" or "up-canning."

Problems can arise when trees are planted either too deep or too shallow at each up-canning. Variability in planting depth (the location of the root collar relative to soil surface, or grade), is of particular concern; optimum planting depth may vary among species and may be dependent on cultural practices and environmental conditions. A new study investigated transplanting practices during container production of the popular landscape tree lacebark elm.

"A lack of knowledge about the effects of common transplanting practices may lead to suboptimal performance of planted landscape trees. Our goal was to determine if transplanting practices during container production through two up-canning events would affect subsequent landscape performance," said Donita L. Bryan of the University of Wisconsin-Platteville and corresponding author of the study. Bryan and colleagues from Texas A&M University conducted their experiments on lacebark elm (Ulmus parvifolia Jacq.), a landscape tree commonly used in urban environments. The study, published in HortScience, investigated effects of planting depth during two successive phases of container production (10.8 L and 36.6 L) and eventual landscape establishment.

The scientists tested whether trees that were initially planted with root collars below grade or above grade, then brought back to grade during successive up-canning or when placed in the landscape, performed as well as trees that were consistently planted with root collars at grade. The experiments also tested whether below-grade planting in containers would exacerbate any adverse effects of below-grade planting in the landscape.

The results showed that tree growth was greater when planted at grade during the initial container production phase and was reduced when planted 5 centimeters below grade. In the second container production phase, trees planted above grade showed reduced growth compared with trees planted at or below grade. During landscape establishment, transplanting at grade to slightly below or above grade produced trees with greater height on average when compared with planting below grade or substantially above grade.

"Correlations between initial growth and final growth in the field suggested that substantial deviations of the original root to shoot transition from at-grade planting was more of a factor in initial establishment of lacebark elm than the up-canning practices associated with planting depth during container production," the researchers concluded.


Story Source:

The above story is based on materials provided by American Society for Horticultural Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Donita L. Bryan et al. Planting Depth During Container Production and Landscape Establishment Affects Growth of Ulmus parvifolia. HortScience, 45: 54-60 (2010)

Cite This Page:

American Society for Horticultural Science. "Planting depth affects popular landscape tree." ScienceDaily. ScienceDaily, 21 April 2010. <www.sciencedaily.com/releases/2010/04/100421102457.htm>.
American Society for Horticultural Science. (2010, April 21). Planting depth affects popular landscape tree. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2010/04/100421102457.htm
American Society for Horticultural Science. "Planting depth affects popular landscape tree." ScienceDaily. www.sciencedaily.com/releases/2010/04/100421102457.htm (accessed April 23, 2014).

Share This



More Plants & Animals News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Monkeys Are Better At Math Than We Thought, Study Shows

Monkeys Are Better At Math Than We Thought, Study Shows

Newsy (Apr. 23, 2014) A Harvard University study suggests monkeys can use symbols to perform basic math calculations. Video provided by Newsy
Powered by NewsLook.com
Raw: Leopard Bites Man in India

Raw: Leopard Bites Man in India

AP (Apr. 22, 2014) A leopard caused panic in the city of Chandrapur on Monday when it sprung from the roof of a house and charged at rescue workers. (April 22) Video provided by AP
Powered by NewsLook.com
Iowa College Finds Beauty in Bulldogs

Iowa College Finds Beauty in Bulldogs

AP (Apr. 22, 2014) Drake University hosts 35th annual Beautiful Bulldog Contest. (April 21) Video provided by AP
Powered by NewsLook.com
805-Pound Shark Caught Off The Coast Of Florida

805-Pound Shark Caught Off The Coast Of Florida

Newsy (Apr. 22, 2014) One Florida fisherman caught a 805-pound shark off the coast of Florida earlier this month. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins