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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 639162RHA 439Helianthus annuus L. North Dakota, United StatesNC7FIELD2005DEVELOPEDBreeding materialA high-linoleic, sclerotinia head rot tolerant restorer germplasm line available for use by industry and public researchers to create hybrids, parental lines, or germplasms with improved sclerotinia head rot tolerance. The pedigree breeding method was used. Sclerotinia tolerance was selected by evaluating testcross hybrids that were artificially inoculated under irrigation. Height was 140 cm compared with a height of 138 cm for RHA 377. Days to flower was 63 d compared with 62 d for RHA 377. Has fertility restoration factors for the PET1 cytoplasmic male sterility and has upper-stem branching conditioned by a recessive gene.1675271PI 639162
1PI 639163RHA 440Helianthus annuus L. North Dakota, United StatesNC7FIELD2005DEVELOPEDBreeding materialA high-linoleic, sclerotinia head rot tolerant restorer germplasm line available for use by industry and public researchers to create hybrids, parental lines, or germplasms with improved sclerotinia head rot tolerance. The pedigree breeding method was used. Sclerotinia tolerance was selected by evaluating testcross hybrids that were artificially inoculated under irrigation. Height was 150 cm compared with a height of 138 cm for RHA 377. Days to flower was 67 d compared with 62 d for RHA 377. Has fertility restoration factors for the PET1 cytoplasmic male sterility and has upper-stem branching conditioned by a recessive gene.1675272PI 639163
2PI 639164HA 441Helianthus annuus L. North Dakota, United StatesNC7ACHENES2005DEVELOPEDBreeding materialMaintainer line derived from a cross between between the HA412 (PI 603993) and SD (received by germplasm exchange with Dr. Felicity Vear, Station d Amelioration des Plantes, INRA, Clermont-Ferrand, France). The pedigree breeding method was used in development. Sclerotinia tolerance of this line was selected by evaluating testcross hybrids that were artificially inoculated under mist irrigation. Height was 160 cm compared with a height of 145 cm for HA 412. Days to flower of HA 441 was 61 d compared with 56 d for HA 412.1675273PI 639164