杂交棉F_2竞争优势及在生产上的应用价值分析

Analysis of the Competitive Advantages and Application Value in the Production of Hybrid Cotton F_2

研究7个强优势的陆地棉品种间杂种F2代的竞争优势,并对F2代在生产上的应用价值进行比较分析,结果表明,F2代3个主要经济性状中,单株铃数竞争优势最大,是F2杂种优势主要来源,单铃重和常规对照相比仍具有较强竞争优势;皮棉产量和对照相比,增产幅度可达10%以上。因此,好的杂种F2代在生产上仍具有推广应用价值。

The competitive advantage of seven strong advantage upland cotton hybrids F2 were studied,the application value of F2 in production was comparatively analyzed.The results showed that,among three main economic traits of F2 generation,boll number per plant is the best competitive advantage,also is the main source competitive advantage of F2.Compared to the control,boll weight still has a strong competitive advantage,lint yield increased up to 10%.So,excellent F2 still has application value in the production.