Comparative characterisation of conventional and textured 11 kV insulators using the rotating wheel dip test

Reciprocal controlled crosses were made in the greenhouse between Gulfmont rice transformed with the bialaphos resistance (BAR) gene and red rice and BAR-transformed Koshihikari rice and red rice to assess the inheritance of glufosinate resistance. All F1 plants were resistant to 2.2 kg ai/ha glufosinate. Ammonia accumulation as a measure of glufosinate resistance in the F1 hybrids was assayed at 4 and 8 days after treatment (DAT). Ammonia accumulation in hybrids 4 DAT was similar to glufosinate treated, transformed rice, while treated nontransformed plants accumulated 14 to 23 times more ammonia compared with the hybrids. The nature of inheritance of glufosinate resistance in F2 rice plants was studied by a glufosinate dip test, a spray test, and ammonia assay. All three tests confirmed that glufosinate resistance, as influenced by the BAR gene, segregated in a 3 (resistant): 1 (susceptible) ratio.

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Apple, Insecticide DIP Test (Tabm vs. Insecticides), 1993

Arthropod Management Tests ◽

10.1093/amt/19.1.369 ◽

1994 ◽

Vol 19 (1) ◽

pp. 369-369

Author(s):

R. L. Horsburgh ◽

J. R. Warren

Keyword(s):

Filter Paper ◽

Room Temperature ◽

Petri Dish ◽

Spray Application ◽

Water Control ◽

Poor Control ◽

Laboratory Bioassay ◽

The Third ◽

Petri Dishes ◽

Dip Test

Abstract A large commercial apple grower reported failure in attempts to control TABM with airblast applications of Penncap M (2 pt/acre) combined with methomyl (3 pt/acre). At the time of the grower applications larval hatch had begun and most larvae were in the first or second instar. By the time larvae were entering the third instar (10 days after spray application) it was apparent that commercially acceptable control had not been achieved. In 1992 this grower also had poor control when Penncap M was applied to suppress redbanded leafroller and experiments showed that tolerance of Penncap M was present in the resident RBLR population (Horsburgh et al. 1992). This laboratory bioassay was begun on 3 Sep to determine tolerance of the TABM population to Penncap M and other insecticides. Seven treatments (including a water control) were selected and rates calculated on the basis of 300 gal of spray being applied per acre. The appropriate dosage of pesticide for each treatment was mixed with 1 gallon of 77°F water in clean 1 gallon battery jars. Twenty plastic petri dishes containing moistened filter paper were prepared and served as individual cages for twenty 3rd instars per treatment. The larvae, on single leaves, were immersed in the appropriate solutions for five seconds and the leaf placed on the moist filter paper. The petri dish cover was put in place and the cages held at room temperature (80°F) for the duration of the test. All larvae were examined at 24 hour intervals and mortality was recorded. Death of larvae was assumed when no movement was observed when the larvae were gently prodded with a blunt steel probe.

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Comparison of Internal and Residual Stresses Measured by Strain-Dip Test and XRD during High Temperature Deformation of Al-Mg Solid Solutions

Materials Science Forum ◽

10.4028/www.scientific.net/msf.768-769.351 ◽

2013 ◽

Vol 768-769 ◽

pp. 351-357

Author(s):

H. Sato ◽

Y. Enomoto ◽

K. Omote ◽

S.I. Tanaka

Keyword(s):

High Temperature ◽

Residual Stresses ◽

Internal Stress ◽

Applied Stress ◽

High Temperature Deformation ◽

Temperature Deformation ◽

Deformation Condition ◽

Internal Stresses ◽

Principal Stresses ◽

Dip Test

Creep behavior of solid solution alloys are reasonably explained by concepts of the “internal and effective stress of high temperature deformation”. The internal stress is considered to be brought by formation of dislocation substructures, and the dislocation structures should have caused long range stress filed in interior of materials. Thus, residual stresses should also be brought by the same origin. In this paper, measurements of the residual stresses after creep deformation by 2D-Xray method are attempt, and the stresses are compared with so-called the “internal stress of high temperature deformation” measured by strain-dip stress-transient test. Although, the stress tensor depends on the deformation condition, the relation with the applied stress show complex manner at a glance. The maximum principal stresses, however, show relatively smaller than the applied stress, and fairly agree with that measured by strain-dip stress-transient technique. Importance of further considerations of the origin of so-called internal stresses is suggested.

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Application of the FAO-recommended method for detecting insecticide resistance in Aphis jabae Scopoli, Sitobion avenae (F.), Metopolophium dirhodum (Walker) and Rhopalosiphum padi (L.) (Hemiptera: Aphididae)

Bulletin of Entomological Research ◽

10.1017/s0007485300013845 ◽

1983 ◽

Vol 73 (1) ◽

pp. 107-115 ◽

Cited By ~ 9

Author(s):

M. F. Stribley ◽

G. D. MOORES ◽

A. L. DEVONSHIRE ◽

R. M. SAWICKI

Keyword(s):

Insecticide Resistance ◽

Rhopalosiphum Padi ◽

Sitobion Avenae ◽

Aphis Fabae ◽

Cereal Aphids ◽

Metopolophium Dirhodum ◽

Large Numbers ◽

The Uk ◽

Dip Test

AbstractBaseline toxicity measurements established discriminating concentrations of pirimicarb and demeton-S-methyl guaranteed to kill susceptible examples of Aphis fabae Scop., Sitobion avenae (F.), Metopolophium dirhodum (Wlk.) and Rhopalosiphum padi (L.) in the dip-test, the FAO-recommended method for detecting resistance in aphids. There was no evidence for resistance to either insecticide in field-collected populations of aphids from various parts of the UK or amongst variants of S. avenae characterised by staining their esterases after electrophoresis. New, simple techniques for rearing large numbers of colonies of cereal aphids are described.

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Baseline responses of United Kingdom field populations of Macrosiphum euphorbiae (Thomas) and Brevicoryne brassicae (L.) (Hemiptera: Aphididae) to demeton-S-methyl

Bulletin of Entomological Research ◽

10.1017/s0007485300014176 ◽

1985 ◽

Vol 75 (1) ◽

pp. 65-72 ◽

Cited By ~ 5

Author(s):

C. Furk ◽

H. Roberts

Keyword(s):

United Kingdom ◽

Dose Response ◽

Brevicoryne Brassicae ◽

Macrosiphum Euphorbiae ◽

Dip Test

AbstractBaseline responses of United Kingdom field populations of Macrosiphum euphorbiae (Thomas) and Brevicoryne brassicae (L.) to demeton-S-methyl were investigated using the FAO-recommended dip-test bioassay. Dose-response lines were produced, and discriminating doses for the two species were derived from the results (320 and 500 mg a.i./litre, respectively) and validated by testing further field populations at those single doses. Of the 1620 individuals of M. euphorbiae and 330 of B. brassicae tested, none survived the discriminating doses.

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Dip-Test Internal Stress and the Composite Model of Creep Deformation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.482.291 ◽

2005 ◽

Vol 482 ◽

pp. 291-294 ◽

Cited By ~ 1

Author(s):

Ferdinand Dobeš ◽

Alena Orlová

Keyword(s):

Internal Stress ◽

Elevated Temperatures ◽

Volume Fraction ◽

Local Density ◽

Creep Behaviour ◽

Composite Model ◽

Internal Stresses ◽

Present Contribution ◽

Test Technique ◽

Dip Test

The composite model of plastic deformation is regarded as a realistic approximation of creep behaviour at elevated temperatures in a well-developed substructure consisting of dislocationdense subgrain boundaries (hard regions) and subgrain interiors (soft regions) with relatively low dislocation density. In the present contribution, the model is applied for an estimation of internal stresses that are experimentally measured by the dip-test technique. Two situations are considered within the model: (i) the density of moving dislocations is the same in both hard and soft regions and (ii) the density of moving dislocations is proportional to the local density in the respective region. The model enables to express the internal stress in terms of microstructural variables found by independent microscopic observations. It is shown that the magnitude of volume fraction of hard and soft region in the composite model has only a small effect on the value of internal stress.

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