Details
| Original language | English |
|---|---|
| Pages (from-to) | 43-48 |
| Number of pages | 6 |
| Journal | Pest management science |
| Volume | 56 |
| Issue number | 1 |
| Early online date | 10 Jan 2000 |
| Publication status | Published - Jan 2000 |
| Externally published | Yes |
Abstract
Effects of droplet size and carrier volume on foliar uptake and transport of daminozide were investigated. A constant dose of daminozide (100 μg per leaf) was applied to both primary leaves of 10-day-old Phaseolus vulgaris (cv Nerina) in droplet sizes of 1-10 μl and carrier volumes of 10 to 200 μl per leaf. Decreasing droplet size or increasing carrier volume decreased daminozide penetration, but increased translocation. Plotting the logarithm of the leaf surface/droplet interface area vs daminozide uptake yielded a negative linear relationship, but for translocation an optimum quadratic type relationship was obtained. Some phytotoxicity occurred at low carrier volumes and large droplet sizes. The degree of phytotoxicity was positively related to the amount of daminozide deposited per unit wetted area above 0.7 μg daminozidemm-2. Below this threshold, there was no visual evidence of phytotoxicity. At the breakpoint, the deposit covered an area of 276 mm2 on both primary bean leaf surfaces. Since the maximum in the relationship of translocation with interface area was in close agreement with the threshold amount of deposit above which phytotoxicity occurred, the inverse relationship between daminozide uptake and translocation at low interface areas was attributed to phytotoxicity. (C) 2000 Society of Chemical Industry.
Keywords
- Alar, Carrier volume, Droplet size, Penetration, Phaseolus vulgaris, Spray volume
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Insect Science
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In: Pest management science, Vol. 56, No. 1, 01.2000, p. 43-48.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spray application factors and plant growth regulator performance
T2 - III. Interaction of daminozide uptake, translocation and phytotoxicity in bean seedlings
AU - Knoche, Moritz
AU - Bukovac, Martin J.
PY - 2000/1
Y1 - 2000/1
N2 - Effects of droplet size and carrier volume on foliar uptake and transport of daminozide were investigated. A constant dose of daminozide (100 μg per leaf) was applied to both primary leaves of 10-day-old Phaseolus vulgaris (cv Nerina) in droplet sizes of 1-10 μl and carrier volumes of 10 to 200 μl per leaf. Decreasing droplet size or increasing carrier volume decreased daminozide penetration, but increased translocation. Plotting the logarithm of the leaf surface/droplet interface area vs daminozide uptake yielded a negative linear relationship, but for translocation an optimum quadratic type relationship was obtained. Some phytotoxicity occurred at low carrier volumes and large droplet sizes. The degree of phytotoxicity was positively related to the amount of daminozide deposited per unit wetted area above 0.7 μg daminozidemm-2. Below this threshold, there was no visual evidence of phytotoxicity. At the breakpoint, the deposit covered an area of 276 mm2 on both primary bean leaf surfaces. Since the maximum in the relationship of translocation with interface area was in close agreement with the threshold amount of deposit above which phytotoxicity occurred, the inverse relationship between daminozide uptake and translocation at low interface areas was attributed to phytotoxicity. (C) 2000 Society of Chemical Industry.
AB - Effects of droplet size and carrier volume on foliar uptake and transport of daminozide were investigated. A constant dose of daminozide (100 μg per leaf) was applied to both primary leaves of 10-day-old Phaseolus vulgaris (cv Nerina) in droplet sizes of 1-10 μl and carrier volumes of 10 to 200 μl per leaf. Decreasing droplet size or increasing carrier volume decreased daminozide penetration, but increased translocation. Plotting the logarithm of the leaf surface/droplet interface area vs daminozide uptake yielded a negative linear relationship, but for translocation an optimum quadratic type relationship was obtained. Some phytotoxicity occurred at low carrier volumes and large droplet sizes. The degree of phytotoxicity was positively related to the amount of daminozide deposited per unit wetted area above 0.7 μg daminozidemm-2. Below this threshold, there was no visual evidence of phytotoxicity. At the breakpoint, the deposit covered an area of 276 mm2 on both primary bean leaf surfaces. Since the maximum in the relationship of translocation with interface area was in close agreement with the threshold amount of deposit above which phytotoxicity occurred, the inverse relationship between daminozide uptake and translocation at low interface areas was attributed to phytotoxicity. (C) 2000 Society of Chemical Industry.
KW - Alar
KW - Carrier volume
KW - Droplet size
KW - Penetration
KW - Phaseolus vulgaris
KW - Spray volume
UR - http://www.scopus.com/inward/record.url?scp=0034101774&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1526-4998(200001)56:1<43::AID-PS86>3.0.CO;2-J
DO - 10.1002/(SICI)1526-4998(200001)56:1<43::AID-PS86>3.0.CO;2-J
M3 - Article
AN - SCOPUS:0034101774
VL - 56
SP - 43
EP - 48
JO - Pest management science
JF - Pest management science
SN - 1526-498X
IS - 1
ER -