Featured Research

from universities, journals, and other organizations

Integrated, organic production systems evaluated for 'liberty' apple

Date:
January 18, 2011
Source:
American Society for Horticultural Science
Summary:
A new study of disease-resistant "Liberty" apples suggests that integrated fruit production (IFP) could be widely implemented in the northeastern United States. The use of an organic fruit production (OFP) system also showed potential for success. Cornell researchers found that marketable yields of apples can be produced in New York's humid growing conditions under both IFP and OFP, but noted that lack of market incentives could impede adoption of the systems.

This photo shows IFP Apple trees in the foreground and far background, and OFP trees with kaolin clay treatment in the center.
Credit: Photo by Greg Peck

Commercial apple growers in the northeastern United States are faced with challenges ranging from disease and insect invasions to tree nutrition and crop load. These and other problems create barriers to effective adoption of integrated fruit production (IFP) and organic fruit production (OFP) of apples, limiting growers' access to potentially lucrative alternative markets.

In a recent issue of HortScience, Cornell University scientists report on a systems-based approach to evaluate IFP and OFP in disease-resistant 'Liberty' apples. The study results suggested that IFP could be widely implemented in the northeastern United States, but that lack of market incentives might impede adoption of the system. The use of an OFP system also showed potential for success, but the researchers noted that price premiums would be necessary to offset the reduced profitability incurred from pests, poor fruit finish, and small fruit size.

The 4-year study, conducted in an established, high-density commercial orchard, showed that the IFP grown apples had between 3-6% insect damage (within normal percentages for this region) and between 3-17% total damage (either internal or cosmetic). The OFP grown apples had between 3-25% insect damage and 3-75% total damage, varying greatly from year to year.

According to Cornell's Gregory M. Peck, the research showed it was possible to produce marketable yields of apples in New York's humid growing conditions under both IFP and OFP systems. "These systems both used a holistic approach that included soil quality improvement, cultural practices for arthropod control, and an intensive IPM program." Peck pointed out that the study evaluated a scab-resistant cultivar (Malus x domestica Borkh.), adding; "Although there are several effective and economical fungicides approved for IFP, an apple orchard of disease-susceptible cultivars for OFP would have to rely on repeated applications of sulfur, lime sulfur, and copper for disease control. The use of these materials would undermine the sustainability of OFP for apple growers in the northeastern United States."

Organic fruit production systems are reported to be more expensive than conventional and integrated systems, and this was borne out the experiment. Sales value was estimated to be 6% greater for OFP than IFP using direct market prices (e.g., farm stand or farmers' market) and 11% greater for IFP than OFP using wholesale market prices.

The researchers concluded that IFP could be widely implemented for apple production in New York State, but cautioned that due to higher production costs, OFP may be most feasible for small to midsized direct market operations.


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. Gregory M. Peck, Ian A. Merwin, Michael G. Brown, and Arthur M. Agnello. Integrated and Organic Fruit Production Systems for ‘Liberty’ Apple in the Northeast United States: A Systems-based Evaluation. HortScience, 2010; 1038-1048 [link]

Cite This Page:

American Society for Horticultural Science. "Integrated, organic production systems evaluated for 'liberty' apple." ScienceDaily. ScienceDaily, 18 January 2011. <www.sciencedaily.com/releases/2011/01/110118101610.htm>.
American Society for Horticultural Science. (2011, January 18). Integrated, organic production systems evaluated for 'liberty' apple. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2011/01/110118101610.htm
American Society for Horticultural Science. "Integrated, organic production systems evaluated for 'liberty' apple." ScienceDaily. www.sciencedaily.com/releases/2011/01/110118101610.htm (accessed September 20, 2014).

Share This



More Plants & Animals News

Saturday, September 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Jury Delivers Verdict in Salmonella Trial

Jury Delivers Verdict in Salmonella Trial

AP (Sep. 19, 2014) A federal jury has convicted three people in connection with an outbreak of salmonella poisoning five years ago that sickened hundreds of people and was linked to a number of deaths. (Sept. 19) Video provided by AP
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