| Autor: |
Krueger, A. P., Strubbe, A. E., Yost, M. G., Reed, E. J. |
| Zdroj: |
International Journal of Biometeorology; September 1978, Vol. 22 Issue: 3 p202-212, 11p |
| Abstrakt: |
Early growth of barley seedlings supplied with ion-depleted air in a controlled microenvironment was used as the criterion of physiological action in experiments designed to separate electrical field and air ion effects. The essential element in this work was the fact that3H foils, functioning as bias electrodes at applied voltages of 67.5-955 V and providing field strengths of 4.6 V/cm to 90 V/cm will produce 2.7×104–1.7×105 small air ions/cm3 — concentrations sufficient to yield a statistically valid increase in growth rate. In contrast, seedlings exposed to equivalent electrical fields in ion-depleted air exhibited no increase in rate of growth. These results indicate that this particular physiological response is produced by small negative air ions and is not dependent on the accompanying electrical fields. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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