【摘要】 运用灰色系统理论中关联度分析法,对24个海岛棉杂交组合的9个主要性状与单株皮棉产量的关联度进行了分析。结果表明,海岛棉杂种一代产量与其主要相关性状的关联度:株高0.6951、节数0.6520、果枝数0.6625、吐絮0.6755、长度0.6518、强力0.7462、衣分0.7050、单铃重0.7497、单株铃数0.8305;关联序为:单株铃数>单铃重>强力>果枝数>衣分>长度>节数>株高>吐絮;各性状的灰色权重为ω1∶ω2∶ω3∶ω4∶ω5∶ω6∶ω7∶ω8∶ω9=0.11∶0.10∶0.10∶0.11∶0.10∶0.12∶0.11∶0.12∶0.13.更多还原

【Abstract】 The relational grade has been analyzed between the nine main characters of the 24 island cotton combinations and yield per plant using method of the relation grade in the gray systematic theory.The results showed that the relational grades between the yield of the island cotton and the relative characters are as follows: highness of island cotton 0.6951,the node number 0.6520,fruit branch number0.6625,flower 0.6755,the length 0.6518,force 0.7462,lint percent 0.7050,weight of per boll 0.7462,boll of per plant 0.7271;the sequence of the relational grade :the boll number of per plant>weight of per boll>force>the number of fruit branch>lint percent>length>the number of node>high>flower;and the gray weight of each characteris respectively:ω₁∶ω₂∶ω₃∶ω₄∶ω₅∶ω₆∶ω₇∶ω₈∶ω₉=0.11∶0.10∶0.10∶0.11∶0.10∶0.12∶0.11∶0.12∶0.13.更多还原