U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Dale Bumpers National Rice Research Center: Stuttgart, AR
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Southeast Area Stuttgart, Arkansas Dale Bumpers National Rice Research Center Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Yan, Wenguiitem
                                            Rutger, Jitem
                                            Bockelman, Harolditem
                                            Tai, Thomas
  Submitted to: American Society of Agronomy Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 9/27/2004
                                    Publication  Date: 10/31/2004
                                    Citation: Yan, W., Rutger, J.N., Bockelman, H.E., Tai, T. 2004. Characterization on kernel descroptors for the USDA rice core collection [abstract]. Agronomy Abstracts. 2004 CDROM.Interpretive Summary:
                                Technical Abstract: Comprehensive evaluations of the USDA rice core subset are essential for assessing the entire collection.  Thus, kernel dimensions, weight and color of 1,615 entries out of 1,801 accessions in the core were evaluated by the 2312 GrainCheck (FOSS Tecator).  The rough rice sample sizes varied from 100 to 732 grains. Sixty-seven entries were white in hull color, 814 straw, 123 golden, 57 tawny or russet, 85 furrowed, 449 spotted or pibald, 16 purple and 4 black. Grain length ranged from 5.9 to 13.0 mm with an average of 8.7±0.9 mm, and width from 2.2 to 4.4 mm with an average of 3.1±0.4 mm. Ratio of length to width ranged from 1.7 to 4.4 with an average of 2.8± 0.5 cm, and 1000 grain weight from 12.5 to 42.7 g with an average of 26.2± .4 g. For brown or dehulled rice, sample sizes varied from 78 to 862 kernels.  Fifty-four entries were white in bran color, 1357 light brown, 58 brown, 144 red and 2 purple. Length ranged from 4.2 to 10.0 mm with an average of 6.5±0.8 mm, and width from 1.5 to 3.5 mm with an average of 2.6±0.3 mm. Ratio of length to width ranged from 1.5 to 4.5 with an average of 2.7±0.5, and 1000 kernel weight from 9.5 to 37.4 g with an average of 21.4±3.7 g. Apparent hull percentage over rough rice ranged from 10.0 to 32.1 with an average of 18.6±4.0.  The complete data will be displayed in GRIN (Germplasm Resources Information Network).


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov