Details
| Original language | English |
|---|---|
| Pages (from-to) | 57-63 |
| Number of pages | 7 |
| Journal | Crop protection |
| Volume | 11 |
| Issue number | 1 |
| Publication status | Published - Feb 1992 |
| Externally published | Yes |
Abstract
The effects of leaf surface, light, temperature, time, concentration, and pH on absorption of [14C]gibberellin A3 (GA3) into newly expanded sour cherry (Prunus cerasus L., cv. Montmorency) leaves were investigated. GA3 penetration was sevenfold greater into the abaxial (7.8%) than adaxial (1.1%) surface. Light markedly enhanced penetration into the abaxial but not the adaxial surface. Penetration was greater at 25°C than at 15° or 35°C. GA3 absorption by the adaxial surface was rapid initially (0-1 h), followed by a slower, almost constant rate of uptake after the droplets dried (1-24 h). Rate of GA3 uptake by the abaxial surface approached zero after 3h. Uptake by the tissue fraction of the adaxial surface was linearly related (r2 = 0.99**) with GA3 concentration from 0.05 to 5 mm, whereas uptake by the abaxial surface was saturated between 1 and 5 mm GA3. Decreasing pH from 5.0 to 3.0 resulted in increased GA3 uptake.
Keywords
- foliar absorption, Gibberellin A, light, pH, Prunus cerasus, temperature
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
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In: Crop protection, Vol. 11, No. 1, 02.1992, p. 57-63.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Factors affecting the absorption of gibberellin A3 by sour cherry leaves
AU - Knoche, Moritz
AU - Lownds, Norman K.
AU - Bukovac, Martin J.
PY - 1992/2
Y1 - 1992/2
N2 - The effects of leaf surface, light, temperature, time, concentration, and pH on absorption of [14C]gibberellin A3 (GA3) into newly expanded sour cherry (Prunus cerasus L., cv. Montmorency) leaves were investigated. GA3 penetration was sevenfold greater into the abaxial (7.8%) than adaxial (1.1%) surface. Light markedly enhanced penetration into the abaxial but not the adaxial surface. Penetration was greater at 25°C than at 15° or 35°C. GA3 absorption by the adaxial surface was rapid initially (0-1 h), followed by a slower, almost constant rate of uptake after the droplets dried (1-24 h). Rate of GA3 uptake by the abaxial surface approached zero after 3h. Uptake by the tissue fraction of the adaxial surface was linearly related (r2 = 0.99**) with GA3 concentration from 0.05 to 5 mm, whereas uptake by the abaxial surface was saturated between 1 and 5 mm GA3. Decreasing pH from 5.0 to 3.0 resulted in increased GA3 uptake.
AB - The effects of leaf surface, light, temperature, time, concentration, and pH on absorption of [14C]gibberellin A3 (GA3) into newly expanded sour cherry (Prunus cerasus L., cv. Montmorency) leaves were investigated. GA3 penetration was sevenfold greater into the abaxial (7.8%) than adaxial (1.1%) surface. Light markedly enhanced penetration into the abaxial but not the adaxial surface. Penetration was greater at 25°C than at 15° or 35°C. GA3 absorption by the adaxial surface was rapid initially (0-1 h), followed by a slower, almost constant rate of uptake after the droplets dried (1-24 h). Rate of GA3 uptake by the abaxial surface approached zero after 3h. Uptake by the tissue fraction of the adaxial surface was linearly related (r2 = 0.99**) with GA3 concentration from 0.05 to 5 mm, whereas uptake by the abaxial surface was saturated between 1 and 5 mm GA3. Decreasing pH from 5.0 to 3.0 resulted in increased GA3 uptake.
KW - foliar absorption
KW - Gibberellin A
KW - light
KW - pH
KW - Prunus cerasus
KW - temperature
UR - http://www.scopus.com/inward/record.url?scp=38249014210&partnerID=8YFLogxK
U2 - 10.1016/0261-2194(92)90080-O
DO - 10.1016/0261-2194(92)90080-O
M3 - Article
AN - SCOPUS:38249014210
VL - 11
SP - 57
EP - 63
JO - Crop protection
JF - Crop protection
SN - 0261-2194
IS - 1
ER -