Abstract
Controlling pH of nutrient solution and keeping the other conditions unchanged, measurements of variation in electric potential difference between leaf and hypocotyl of a bush bean plant was performed for about seven days. Silver electrodes 0.3mm in diameter were glued on the surface of the plant using conductive paste prepared by dissolving gelatine in Ringel {prime} s solution. The results obtained are summarized as follws: first, when pH of the solution is suddenly increased or decreased, the potential of leave becomes high or low with respect to that of hypocotyl respectively; second, the variation in potential difference between them is affected by the rate at which pH of the solution is adjusted, although the total variation of pH is controlled to be the same, and in particular by mild adjustment (0.02 - 0.05pH/min) it is reduced to 1/2 - 1/4 of that produced by sudden change; third, abrupt change in pH of the solution cause to the plant the temporary suppression of its water absorption having a duration of 7 - 15 minutes. A short account is given of a non-contact type measurement of bioelectric potential performanced by making use of a Faraday {prime} s cage. 11 refs., 12 figs.
Citation Formats
Sekiyama, T, Haniyu, H, and Saiki, H.
Continuous measurement of electrical characteristics in plants. 3. Shokubutsu seitai no denki tokusei sokuteiho. 3. ; Suikoeki pH chosei heno tekiyo.
Japan: N. p.,
1989.
Web.
Sekiyama, T, Haniyu, H, & Saiki, H.
Continuous measurement of electrical characteristics in plants. 3. Shokubutsu seitai no denki tokusei sokuteiho. 3. ; Suikoeki pH chosei heno tekiyo.
Japan.
Sekiyama, T, Haniyu, H, and Saiki, H.
1989.
"Continuous measurement of electrical characteristics in plants. 3. Shokubutsu seitai no denki tokusei sokuteiho. 3. ; Suikoeki pH chosei heno tekiyo."
Japan.
@misc{etde_7784761,
title = {Continuous measurement of electrical characteristics in plants. 3. Shokubutsu seitai no denki tokusei sokuteiho. 3. ; Suikoeki pH chosei heno tekiyo}
author = {Sekiyama, T, Haniyu, H, and Saiki, H}
abstractNote = {Controlling pH of nutrient solution and keeping the other conditions unchanged, measurements of variation in electric potential difference between leaf and hypocotyl of a bush bean plant was performed for about seven days. Silver electrodes 0.3mm in diameter were glued on the surface of the plant using conductive paste prepared by dissolving gelatine in Ringel {prime} s solution. The results obtained are summarized as follws: first, when pH of the solution is suddenly increased or decreased, the potential of leave becomes high or low with respect to that of hypocotyl respectively; second, the variation in potential difference between them is affected by the rate at which pH of the solution is adjusted, although the total variation of pH is controlled to be the same, and in particular by mild adjustment (0.02 - 0.05pH/min) it is reduced to 1/2 - 1/4 of that produced by sudden change; third, abrupt change in pH of the solution cause to the plant the temporary suppression of its water absorption having a duration of 7 - 15 minutes. A short account is given of a non-contact type measurement of bioelectric potential performanced by making use of a Faraday {prime} s cage. 11 refs., 12 figs.}
place = {Japan}
year = {1989}
month = {Sep}
}
title = {Continuous measurement of electrical characteristics in plants. 3. Shokubutsu seitai no denki tokusei sokuteiho. 3. ; Suikoeki pH chosei heno tekiyo}
author = {Sekiyama, T, Haniyu, H, and Saiki, H}
abstractNote = {Controlling pH of nutrient solution and keeping the other conditions unchanged, measurements of variation in electric potential difference between leaf and hypocotyl of a bush bean plant was performed for about seven days. Silver electrodes 0.3mm in diameter were glued on the surface of the plant using conductive paste prepared by dissolving gelatine in Ringel {prime} s solution. The results obtained are summarized as follws: first, when pH of the solution is suddenly increased or decreased, the potential of leave becomes high or low with respect to that of hypocotyl respectively; second, the variation in potential difference between them is affected by the rate at which pH of the solution is adjusted, although the total variation of pH is controlled to be the same, and in particular by mild adjustment (0.02 - 0.05pH/min) it is reduced to 1/2 - 1/4 of that produced by sudden change; third, abrupt change in pH of the solution cause to the plant the temporary suppression of its water absorption having a duration of 7 - 15 minutes. A short account is given of a non-contact type measurement of bioelectric potential performanced by making use of a Faraday {prime} s cage. 11 refs., 12 figs.}
place = {Japan}
year = {1989}
month = {Sep}
}