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This article in CS

  1. Vol. 10 No. 2, p. 200-202
     
    Received: Oct 19, 1969
    Published: Mar, 1970


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doi:10.2135/cropsci1970.0011183X001000020026x

Effect of Genotype and Tannin on Dry Matter Digestibility in Sericea Lespedeza1

  1. E. D. Donnelly and
  2. W. B. Anthony2

Abstract

Abstract

Dry matter digestibility (DDM) was determined the in vivo nylon bag technique on two cuttings of low- and high-tannin sericea plants (Lespedeza cuneata [Dumont] G. Don). Low-tannin sericea was higher in DDM than normal or high-tannin sericea. Differences in DDM were indicated among low- and high-tannin genotypes. Low-tannin plants increased in tannin content relatively little from the first to the second cutting compared to high-tannin plants. The second cutting of low- and high-tannin plants averaged as high in DDM as the first cutting. Tannin and DDM were negatively correlated only when low- and high-tannin plants were combined except for the second cutting of low-tannin plants. Data indicate a tannin threshold in sericea which is critical in relation to DDM.

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