Featured Research

from universities, journals, and other organizations

Pepper Lends Its Nematode Resistance To Double-Cropped Vegetables

Date:
June 25, 2004
Source:
USDA/Agricultural Research Service
Summary:
The Charleston Belle pepper developed by the Agricultural Research Service continues to impress researchers with its ability to resist major root-knot nematodes afflicting the southern United States.

Whiplike larva of root-knot nematode, Meloidogyne incognita, magnified 500X, shown here penetrating a tomato root. Once inside, the larva establishes a feeding site, which causes a nutrient-robbing gall.
Credit: Photo by William Wergin and Richard Sayre.

The Charleston Belle pepper developed by the Agricultural Research Service continues to impress researchers with its ability to resist major root-knot nematodes afflicting the southern United States.

A recent ARS study not only confirmed the effectiveness and heat tolerance of Charleston Belle's resistance gene, but also found that the gene benefits nematode-susceptible vegetables rotated with the pepper.

In the study, led by plant pathologist Judy Thies of the ARS U.S. Vegetable Laboratory in Charleston, S.C., Charleston Belle dramatically outperformed its susceptible parent, Keystone Resistant Giant, in field tests. Not only did it repel nematodes, it also protected subsequently planted (double-cropped) susceptible squash and cucumber crops.

The research--described in this month's issue of Plant Disease--showed that Charleston Belle exhibited minimal root galling from nematode attack. Charleston Belle also helped the double-cropped cucumber and squash plants produce bigger yields and heavier fruit than when the two were grown following the Keystone variety.

The work was conducted at Clemson University's Edisto Research and Education Center in Blackville, S.C., and at the ARS Crop Protection and Management Research Unit in Tifton, Ga. ARS is the U.S. Department of Agriculture's chief scientific research agency.

Charleston Belle peppers--released in 1997 by ARS Vegetable Laboratory geneticist Richard Fery--get their resistance from the N gene, which was obtained from a resistant pimiento pepper and placed into Keystone cultivars to create Charleston Belle. The gene controls resistance to three major root-knot nematode species: southern (Meloidogyne incognita), peanut (M. arenaria) and javanese (M. javanica).

The pepper's resistance may aid growers who, next year, must fight root-knot nematodes without use of methyl bromide. This pesticide will be banned Jan. 1 because of its ozone-depleting properties.

Other, independent studies have shown that nematode-resistant vegetable plants--notably tomatoes--can help shield double-cropped vegetables from nematode attack. In the ARS study, cucumber yields were 87 percent heavier and numbers of fruit were 85 percent higher when grown after Charleston Belle than after Keystone. Squash yields were 55 percent heavier, with 50 percent more fruit.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Pepper Lends Its Nematode Resistance To Double-Cropped Vegetables." ScienceDaily. ScienceDaily, 25 June 2004. <www.sciencedaily.com/releases/2004/06/040625083922.htm>.
USDA/Agricultural Research Service. (2004, June 25). Pepper Lends Its Nematode Resistance To Double-Cropped Vegetables. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2004/06/040625083922.htm
USDA/Agricultural Research Service. "Pepper Lends Its Nematode Resistance To Double-Cropped Vegetables." ScienceDaily. www.sciencedaily.com/releases/2004/06/040625083922.htm (accessed August 1, 2014).

Share This




More Plants & Animals News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Visitors Feel Part of the Pack at Wolf Preserve

Visitors Feel Part of the Pack at Wolf Preserve

AP (July 31, 2014) — Seacrest Wolf Preserve on the northern Florida panhandle allows more than 10,000 visitors each year to get up close and personal with Arctic and British Columbian Wolves. (July 31) Video provided by AP
Powered by NewsLook.com
Florida Panther Rebound Upsets Ranchers

Florida Panther Rebound Upsets Ranchers

AP (July 31, 2014) — With Florida's panther population rebounding, some ranchers complain the protected predators are once again killing their calves. (July 31) Video provided by AP
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) — Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) — Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) 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