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
 Genetics and Sustainable Agriculture Research: Mississippi State, MS
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                                    Software
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Southeast Area Mississippi State, Mississippi Crop Science Research Laboratory Genetics and Sustainable Agriculture Research 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
                                            McCarty, Jackitem
                                            WU, JIXIANG - MISSISSIPPI STATE UNIVitem
                                            Jenkins, Johnieitem
                                            GUO, XIANGMO - COTTON RESEARCH INSTITUTE
  Submitted to: Cotton Science
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 2/15/2005
                                    Publication  Date: 3/1/2005
                                    Citation: McCarty Jr., J.C., Wu, J., Jenkins, J.N., Guo, X. 2005. Evaluating American and China cotton cultivars and their crosses for improvement. Cotton Science. 17:47-55.Interpretive Summary: Crossing unrelated elite cotton cultivars may lead to improvements of agronomic and fiber traits.  In this study American cultivars (Deltapine 90, Stoneville 474, and Sure-Grow 747) were crossed as female parents with China cultivars (CR 110 and 86-1).  The five parents and six F2 and F3 hybrids were evaluated at Mississippi State, Mississippi for three years.  Genetic statistical models were used for data analysis. Variance components, genetic effects, and genotypic values were calculated.  Genetic effects were significant for most agronomic and fiber traits.  China cultivars CR110 and 86-1 when used as parents may improve fiber fineness.  CR110 and Deltapine 90 were good combiners for fiber length and fiber strength.  Genetic predictions showed that: (1) Deltapine 90 crosses would improve lint yield in later generations, (2) The cross between CR110 and Stoneville 474 can be used to increase lint yield at early generation but may not be good for selection at later generations, (3) All crosses except Stoneville 474×CR110 provide the potential for yield improvement at later generations, (4) The cross between 86-1 and Sure-Grow 747 had higher fiber strength than the other crosses at both early and late generations, and (5) Considering genotypic values for lint yield and fiber traits, the cross Sure-Grow 747×86-1 can be used for yield improvement at early and late generations while fiber quality should remain acceptable.  This study provides useful data on how diverse elite cultivars can be used to improve cotton yield and quality.
                                Technical Abstract: The use of elite cotton cultivars, Gossypium hirsutum L., in cotton breeding programs may lead to improvements of agronomic and fiber traits.  In this study three American cultivars (Deltapine 90, Stoneville 474, and Sure-Grow 747) were used as female parents and crossed with two China cultivars (CR 110 and 86-1).  The five parents and six F2 and F3 hybrids were evaluated at Mississippi State, Mississippi in field tests for three years.  The additive, dominance, and additive × additive genetic models were used for data analysis.  Variance components, genetic effects, and genotypic values were calculated.  The results showed additive × additive epistatic effects were significant for most agronomic and fiber traits. China cultivars CR110 and 86-1 can be used as parents to improve fiber micronaire.  CR110 and Deltapine 90 were good combiners for fiber length and fiber strength.  Genetic predictions showed that: (1) Crosses with Deltapine 90 would improve lint yield in later generations, (2) The cross between CR110 and Stoneville 474 can be used to increase lint yield at early generation but may not be good for selection at later generations, (3) All crosses except Stoneville 474×CR110 provide the potential for yield improvement at later generations, (4) The cross between 86-1 and Sure-Grow 747 had higher fiber strength than the other crosses at both early and late generations, and (5) Considering genotypic values for lint yield and fiber traits, the cross Sure-Grow747×86-1 can be used for yield improvement at early and late generations while fiber quality should remain acceptable.  This study provides useful data on how diverse cultivars may be used to improve cotton yield and quality.


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