Correlations between variability in carrot (Daucus carotaL.) plant weight and variability in embryo length

Abstract
Summary The variation in embryo length of Chantenay type carrot seeds, seedling and root weight were examined for 16 lots of commercial origin in 1983, and for six lots in 1984 at three sites for crops grown at low plant densities. The coefficients of variation (CV) of embryo length of the seed lots varied from c. 19 to 50%. The CVs of seedling weight ranged from c. 45 to 75% and of root weight from c. 50 to 70%. The ranking of lots by the CV of seedling weight in both years was similar at each site and both the CV of seedling weight and, in 1984, the CV of root weight increased with an increase in the CV of embryo length. The Spearman rank correlation coefficients (rs) for the relation between the CV of seedling weight and the CV of embryo length in both years ranged from 0.49 to 0.94 and rs for the CV of root weight and the CV of embryo length in 1984 from 0.83 to 0.94.

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