Font Size: a A A

LED Light On The Growth Of Wheat Grass And Incubator Design

Posted on:2016-10-03Degree:MasterType:Thesis
Country:ChinaCandidate:G Q LiFull Text:PDF
GTID:2283330473957370Subject:Optical engineering
Abstract/Summary:PDF Full Text Request
In recent years, along with the rapid development of photovoltaic technology, high-brightness led of the red, blue light-emitting diodes birth and development, at present, LED light source is widely used in agricultural research, based on the existing experimental conditions of this study, through the Wheatgrass lighting tests to determine the effects of different optical parameters of wheat grass growing. Specific research process and results are as follows:The purpose of this paper is to through the LED illumination experiment, to explore the impact on plant growth rate in different light quality light intensity and light cycle. Using high-power red and blue LEDs. The red peak wavelength is 655 nm, the blue peak wavelength is 438 nm, in accordance with the absorption spectrum of plant photosynthesis. The experiment used control variable method; regarded light quality light intensity and light cycle as a variable, the rest of the growing environment were the same. The experiment results show that the red is significantly better than blue, even more than the indoor natural light. Red and blue proportion is 3:1 more suitable for plant growth; from two aspects of growth rate and the power consumption of the light source, light cycle in 12 hour interval illuminate relatively appropriate. Photosynthesis exists light saturation point, when the light intensity reaches the saturation point of photosynthesis in wheat grass, its growth rate will not continue with the light intensity grows. On the other hand, the red light quality promote wheatgrass chlorophyll content, soluble sugar content, ascorbic acid oxidase plant ingredients; blue light quality promote soluble protein, proline, total acidity, the various components of the above improvements are help to improve the nutritional quality of wheat grass.The paper also designed a leafy vegetables incubator, providing integrated training device for family of green vegetables, simple structure, beautiful, easy to operate, safety and environmental protection; Suitable for vegetable growth LED light at specific wavelengths and mixed light up the light, high efficiency and energy saving. using procedural methods for vegetable cultivation different biological quality requirements and different types of vegetables growing environmental requirements.
Keywords/Search Tags:LED, light quality, light intensity, photoperiod, physiological index, wheat grass, incubator
PDF Full Text Request
Related items