Topic
Light adverse effect
About: Light adverse effect is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 1 citations.
Papers
TL;DR: In this article, the photodecomposition of post emergence herbicides on leaf surface can be affected via adding vegetable oils to spray tank, which significantly improved the resistance of sethoxydim to light treatment.
Abstract: The photodecomposition of post emergence herbicides on leaf surface can be affected via adding vegetable oils to spray tank. Nine vegetable oils were compared to assess the photodecomposition of sethoxydim on wild oat leaf surface under simulated light conditions. The experiment was conducted as completely randomized factorial design with three replications at the College of Agriculture, Ferdowsi University of Mashhad, Iran, in 2013. Each herbicidal solution (with and without vegetable oil) was exposed to simulated light at 0, 5, 10, 20, 30, 60, 120 and 240 MAS (min after spray), for 30 min. The performance of sethoxydim in the presence of turnip, olive, soybean, corn, sunflower, canola, sesame, castor and cotton seed oils, compared to non-vegetable oil solution, increased up to 4.02-, 3.44-, 3.22-, 3.08-, 2.86-, 2.09-, 1.96-, 1.77- and 1.25- fold. All vegetable oils significantly improved the resistance of sethoxydim to light treatment. The effect of vegetable oils on the resistance to photodecomposition of sethoxydim was significant different at less than 60 MAS, while no significant differences were noted among vegetable oils when light treatment occurred at 120 and 240 MAS. Data from the light treatments have confirmed that when vegetable oils were added to sethoxydim, light adverse effect was lower, which is presumably due to disturbance of the cuticule and the rapid absorption of sethoxydim by wild oat leaves. Vegetable oils fatty acids composition effect the resistance to photodecomposition of sethoxydim, as with increasing the unsaturated fatty acid values, the resistance to photodecomposition was improved.
1 citations
Patent•
20 Jun 2006
TL;DR: In this article, an optical light source unit includes a light source that emits a beam, and a collimate lens that collimates the beam and executes imaging on an imaging surface.
Abstract: An optical light source unit includes a light source that emits a beam, and a collimate lens that collimates the beam and executes imaging on an imaging surface. The beam substantially has light intensity of Gauss distribution in a cross section after passing through the collimate lens. A radius of the beam in a cross section is larger in a sub scanning direction than that in a main scanning direction at a beam waist and on the imaging surface. An entry angle of the beam entering the imaging surface with a normal line of the imaging surface is larger than a diverse angle of the beam returning and diverging from the imaging surface.
Performance Metrics
| Year | Papers |
|---|---|
| 2014 | 1 |
| 2006 | 1 |