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1 材料与方法于1979、1980和1981年在两试验中对现代的和过时的品种及种质系包括优质对照品种 AcalaST—5、脱壳品种、Paymaster303和没有三重杂种祖先的纤维质量对照品种 PD4461进行了比较,每年试验之一实施于佛罗伦萨县的 PD 试验站旧农场 Norfolk
MATERIALS AND METHODS Modern and outdated varieties and germplasm were tested in both trials in 1979, 1980 and 1981, including the high quality control varieties AcalaST-5, the unhulled variety, Paymaster 303 and the fiber quality control variety PD4461 without triple hybrid ancestry A comparison was conducted with one of the annual trials implemented at the PD Farm in Florence County, the old farm of Norfolk