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Agronomy Journal Abstract -

Growth and Morphological Characteristics of Induced Autotetraploids of Lespedeza Cuneata, L. Stipulacea and L. Striata, and Interfertility of These Species at Diploid and Tetraploid Levels1

 

This article in AJ

  1. Vol. 51 No. 3, p. 143-147
     
    Received: June 24, 1958


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doi:10.2134/agronj1959.00021962005100030007x
  1. R. M. Brinkley,
  2. C. H. Hanson and
  3. W. A. Cope2

Synopsis

Synopsis

The induced autotetraploids had larger leaflets, stems, flowers, and seeds and lower yields of hay and seed than the respective parental diploids. Progenies from chasmogamous flowers gave higher yields than progenies from cleistogamous flowers, indicating heterosis. Viable hybrids were not obtained from any of the various combinations of diploid and tetraploid matings attempted. In ovaries of the diploid mating of L. Stipulacea × L. cuneata collapse of the ovule began at about the sixth day. The endosperm appeared degenerate.

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