Larry C Purcell

Address:

2369 N Yorkwood Dr, Fayetteville, AR 72703

Phone:

4795822025

VIN:

JTDKB20U973264666

Make:

TOYOTA

Model:

PRIUS

Year:

2007

US Patent:

6872562, Mar 29, 2005

Filed:

Jan 16, 2002

Appl. No.:

10/050593

Inventors:

Charles A. King - Fayetteville AR, US
Larry C. Purcell - Fayetteville AR, US

Assignee:

The Board of Trustees of the University of Arkansas, N.A. - Little Rock AR

International Classification:

C12N001/21

US Classification:

4352522, 435 4, 435 732, 435 34, 435440, 435441, 435468, 435471, 435476, 435243, 435244, 435410, 435418, 435426, 435415, 4353201, 536 231, 536 232, 536 237

Abstract:

The present invention is directed to herbicide resistant Nfixing bacteria. The bacteria are useful for effecting Nfixation, nodulation, growth and yield of herbicide resistant or tolerant leguminous plants treated with herbicide. The bacteria are particularly useful for providing competitive advantage to superior Nfixing rhizobial strains over non-resistant indigenous rhizobia for nodulation of herbicide resistant or tolerant leguminous plants.

US Patent:

8391565, Mar 5, 2013

Filed:

May 24, 2010

Appl. No.:

12/800849

Inventors:

Larry C Purcell - Fayetteville AR, US
Robert L. Rorie - Fayetteville AR, US
Douglas E Karcher - Fayetteville AR, US

Assignee:

Board of Trustees of the University of Arkansas - Little Rock AK

International Classification:

G06K 9/00

US Classification:

382110

Abstract:

A system and method of determining nitrogen levels from a digital image. In particular, a method of determining leaf nitrogen concentration and yield from a digital photograph of a fully developed leaf (collared leaf) of a crop of nonlegumes, such as corn, rice, wheat, cotton, potatoes or sugarcane. The digital image is processed to determine a dark green color index (“DGCI”), which is closely related to leaf nitrogen concentration and yield. Standardized color disks having known DGCI values are included in the digital photograph and serve as an internal standard. The internal standard allows correction of DGCI of samples when using different cameras and/or when lighting conditions change.