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Agronomy Journal Abstract -

Effect of Germination Temperature on Surface Area and CO2 Production of Corn Seedlings1


This article in AJ

  1. Vol. 59 No. 2, p. 133-136
    Received: Sept 8, 1966

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  1. Eugene R. Perrier,
  2. Marvin Twersky,
  3. Doyle B. Peters and
  4. Vytas Gylys2



Corn seedlings were germinated at 29C and 25C, then transferred to growth chambers at 25C and aerated with sterilized, CO2-free air under dark conditions. A modification of the Devaux technique was used to measure the surface area of irregularly shaped corn seedlings.

The growth rate, as measured by the surface area and the CO2 respired, was greater for the corn seedlings germinated at 29C than at 25C. The flux of CO2. declined with time and the rate of decline increased as the temperature of germination increased. In general, the growth rate was greater for the shoot than the root under the conditions of the experiment.

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