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Crop Science Abstract -

Heritability of Soluble Proteins in Alfalfa1


This article in CS

  1. Vol. 16 No. 2, p. 199-201
    Received: Feb 20, 1975

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  1. L. H. Gutek,
  2. B. P. Goplen2 and
  3. R. E. Howarth3



This study was conducted to assess the feasibility of breeding alfalfa cultivars with low soluble protein concentrations as a means of reducing the bloat-causing potential of alfalfa (Medicago sativa L.). Narrow-sense heritability estimates were obtained for soluble fraction I, fraction II, and total soluble protein concentrations in alfalfa. Heritability estimates (h2) were based on the parent-offspring regression method using data from 32 unselected clones and their open-pollination progenies.

The h2 estimates for the soluble proteins for 1972 and 1973 were as follows: soluble fraction I (19 and 20%), soluble fraction II (19 and 27%), total soluble protein (23 and 31%). These relatively low heritability estimates indicate that it should be possible to lower the soluble protein content of alfalfa by consecutive cycles of recurrent selection procedures involving well-replicated progeny tests.

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