חיפוש מתקדם
Physiologia Plantarum
EREZ, A., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, Israel
Exposure of peach plants to the blue plus far‐red (B/FR) portions of the sunlight spectrum caused a rapid rise in ethylene evolution from their apices. Two days were enough to produce a significant rise in ethylene evolution relative to blue without far‐red or to neutral shade. Maximal level of ethylene evolution in the B/FR light, more than eight times that of the blue or the neutral shade, was reached after four days of exposure. A higher endogenous ethylene content was also found under B/FR relative to blue or to neutral shade conditions. The level of ethylene evolution from peach apices was correlated with their arrested growth as observed a few days later. Exposure of peach plants to dense leaf shade, under the canopy of a big avocado tree, enhanced ethylene evolution from their apices, relative to unfiltered sunlight and to neutral shade. It was suggested that the rise in ethylene evolution in both B/FR and leaf shade conditions resulted from a high far‐red: red ratio. Ethylene was further suggested to act as a mediator of photomorphogenetic regulation of vegetative development in far‐red‐rich tree shade. Copyright © 1977, Wiley Blackwell. All rights reserved
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הספר "אוצר וולקני"
אודות
תנאי שימוש
The Effect of Different Portions of the Sunlight Spectrum on Ethylene Evolution in Peach (Prunus persica) Apices
39
EREZ, A., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, Israel
The Effect of Different Portions of the Sunlight Spectrum on Ethylene Evolution in Peach (Prunus persica) Apices
Exposure of peach plants to the blue plus far‐red (B/FR) portions of the sunlight spectrum caused a rapid rise in ethylene evolution from their apices. Two days were enough to produce a significant rise in ethylene evolution relative to blue without far‐red or to neutral shade. Maximal level of ethylene evolution in the B/FR light, more than eight times that of the blue or the neutral shade, was reached after four days of exposure. A higher endogenous ethylene content was also found under B/FR relative to blue or to neutral shade conditions. The level of ethylene evolution from peach apices was correlated with their arrested growth as observed a few days later. Exposure of peach plants to dense leaf shade, under the canopy of a big avocado tree, enhanced ethylene evolution from their apices, relative to unfiltered sunlight and to neutral shade. It was suggested that the rise in ethylene evolution in both B/FR and leaf shade conditions resulted from a high far‐red: red ratio. Ethylene was further suggested to act as a mediator of photomorphogenetic regulation of vegetative development in far‐red‐rich tree shade. Copyright © 1977, Wiley Blackwell. All rights reserved
Scientific Publication
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