Abstract
Cuphea viscosissima Jacq. is a potential commercial source of medium-chain-length fatty acids. Somaclonal variation was investigated as a source of additional variability useful for crop improvement. The R 1 families derived from R 0 plants regenerated from calli, and their respective parental lines were evaluated in the field for somaclonal variation at two Iowa locations during the summer of 1991. Comparisons were made among the parents and their R 1 families for the following traits: plant height, leaf area, seed yield, 100-seed weight, seed germination, oil content and fatty acid composition. Certain R 1 families had significant increases ( P ≥ 0.05) over their parents for mean plant height, leaf area, seed yield, percent seed germination, caprylic acid (8:0) and lauric acid (12:0). These somaclones may provide a source of variation exploitable for future plant improvement.
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