Correlation coefficient analysis (path analysis) and the direct and indirect effects of studied traits on alfalfa yield under normal and salinity stress conditions

In order to evaluation and assessment of salinity on the alfalfa different traits under salinity, a factorial test conducted in the plot of complete random by two factors. The first factor appeared in 3 salinity levels and witness and the second factor appeared in 3 repetitions of 5 alfalfa varieties. Statistical analysis of data showed a significant difference between varieties and care of studied traits in this step. Traits causality analysis of the total dry showed that the yield most directly was influenced by the leaf dry weight and most indirectly was influenced by the leaf number by means of stem numbers. The high correlation between the leaf numbers with the stem numbers confirms this result.

Keywords:

alfalfa , path analysis , Correlation coefficient , salinity stress conditions , normal conditions