【摘要】 “双亚七号”品种是采用复合杂交方法 [(6 40 9— 6 6 9× Natasja) F1 × 78— 99]×FR2 ,经混合个体选择育成的。该品种具有出麻率高 ,纤维品质好 ,种子产量高和多抗等优点。区域试验的原茎、纤维和种子每公顷分别为 5 831 .5 kg、6 6 4.3kg和 493.1 kg,分别比对照品种黑亚七号增产 1 0 %、2 3.1 %和 2 2 .5 %。生产试验的原茎、纤维和种子每公顷产量分别为 4785 .4kg、 789.8kg和 5 37.6 kg,分别比对照品种黑亚七号增产 8.7%、 2 7%和34.4% ,长麻率 1 9.5 %比对照高 4个百分点。纤维强度 2 48.9牛顿 ,纤维号 2 0 井 。更多还原

【Abstract】 Shuangya No.7 were bred by the compound cross of [(6409—669×Natasja]F 1×78—99×FR 2 and selected with pedigree selection. Its merits are high long fibre content, superior fibre quality, high seed yielding and high lodgingresistant. The results showed the yield of stem , fibre and seed was respectively 5831.5 kg/ha, 664.3kg/ha and 493.1 kg/ha, an increase of 10%、23% and 22.5% over check Heiya No.7 in regional experiment. The yield of stem,fibre and seed was respectively 4785.4 kg/ha, 789.8kg/ha, and 5376kg/ha,an increase of 8.7%、27% and 34.4% over check Hei ya No.7 . The long fibre content of Shuang ya No.7 is 90%, It is 4% more than check. Its fibre strength is 248.85 N. and fibre number is 20 No.更多还原