【摘 要】
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Correlation and path coefficient analyses were conducted for 10 characteristics of 24 pure lines of flue-cured tobacco suchas plant height,knot distance,leaf nu
【机 构】
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College of Agriculture,Hunan Agricutural University,Changsha 410128,China“,”South Central Agricultur
论文部分内容阅读
Correlation and path coefficient analyses were conducted for 10 characteristics of 24 pure lines of flue-cured tobacco suchas plant height,knot distance,leaf number,the central leaf length and width,ratio of the length to width,stem girth,dates of budding,leaf yield and ratio of the prime-medium tobacco.The leaf number and the central leaf length showed a positive or a strong positivecorrelation with the yield per plant.And the leaf number and leaf yield per plant showed a strong positive correlation with the ratio ofprime-medium tobacco.The results showed that the leaf yield per plant among these characteristics played a major role in determiningthe ratio of prime-medium tobacco while the others were less related with the ratio.Square sum of deviation method cluster analysesshowed that 24 pure lines of flue-cured tobacco were clustered into two groups.Of the pure lines,Line TI706 and Line TI245 had a farrelationship with all other lines,and also had a heterosis when crossed with the other lines.Lines Gnangdonghuangl and R72(3)B-2-1were closely related.
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