A statistical study of certain characters of the alfalfa plant concerned with seed production
1933
Dann, B. | Waldron, L.R.
Alfalfa in an experimental garden under German conditions produced a heavy seed crop generally similar, as shown by the means, to alfalfa seed crops in this country. With four independent variables distinctly significant correlations were found between weight of seed per plant (dependent) and weight of plant, pods per racemes, and seeds per pod, for the zero, first, second, and third orders. Only total racemes was correlated positively and significantly with weight of plant for the various orders. Total and partial regression coefficients were calculated. With regard to the partial coefficients, a deviation of but 12% in plant weight accounted for a deviation of 10% in weight of seed per plant. It required a relatively enormous deviation of racemes per plant to result in a similar deviation of seed. The multiple correlation coefficient of the four independent variables on weight of seed per plant was 0.84, a highly significant value.
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