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 Genetics and Sustainable Agriculture Research: Mississippi State, MS
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Title:   Author  item
                                            SHOEMAKER, D - MISSISSIPPI STATE UNIVitem
                                            Jenkins, Johnieitem
                                            McCarty, Jack
  Submitted to: National Cotton Council Beltwide Cotton Conference
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 1/4/2000
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: Field experiments were conducted in 1997 and 1998 at the Plant Science Center, Mississippi State, MS, to determine the fruiting characteristics of seven cultivars of cotton, Gossypium hirsutum L.  Deltapine 50, Sure-Grow 125 and Sure-Grow 501 from the U.S. and FiberMax 832, FiberMax 963, FiberMax 975, and FiberMax 989  from AgrEvo Cotton Seed International (ACSI) were planted in a randomized complete block with six replicates.  In-season and final end-of-season mappings were done.  FiberMax 963 produced the most seed cotton.  FiberMax 963 had a significantly higher lint percentage in 1997, than others, except FiberMax 975.  There were no significant differences for lint percentage in 1998. There were no significant differences for boll size.  Seven cultivars were crossed in a diallel design-mating scheme  involving parents (FiberMax 963, FiberMax 989, Deltapine 90, Deltapine 50, Sure-Grow 501, Paymaster 1560, Stoneville 474). Parents and F2 hybrids were grown in two locations in 1999. Several F2 hybrids yielded more than the parents. General combining ability (GCA) effects differed significantly for fiber traits.  Sure-Grow 501 gave significant, positive GCA effects for all fiber traits except micronaire.  Significant, positive specific combining ability (SCA) effects were smaller than GCA effects for fiber traits.  These results suggest that high yielding F2 hybrids or pure lines with improved fiber quality and yield can be developed.


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