【作者】 侯红英；

【导师】 王晶；

【作者基本信息】 中国海洋大学 ， 光学工程， 2006， 硕士

【摘要】 反季及跨季蔬菜水果栽培中遇到的光照不足问题推动着人们寻求能够解决这一问题的办法,进而使植物生长对光照的响应成为研究的热点。最早开始的是白炽灯、氖灯、钠灯等人工电辐射源光照栽培植物的研究,也取得了一定的成效。但终因这些辐射源耗电量大或是所发射的光谱不能与植物光合作用的吸收光谱很好匹配,造成很大的能量浪费,在实际生产中应用价值不高而得不到推广。另外,转光膜的传统转光剂主要包括稀土无机化合物和稀土有机配合物,分别把紫外光转成蓝紫光和红橙光。但是,所转红光峰值远低于660nm。荧光光谱过窄、与光合作用光谱匹配性差,光合作用效率提高有限.因此,添加了有机共轭分子调光剂的调光生态农膜和新型高效节能光源LED为解决这一问题提供了新思路。调光生态膜是通过调光剂将光合无效光转化为光合高效光。调光生态膜的调光剂的激发谱、发射谱所在位置能否与植物光合作用的吸收谱相匹配是决定其调光性能优劣的关键。本文通过对太阳紫外辐射、太阳光谱成分的研究;说明了所研制的调光生态农膜具有很大的调光优势;并对调光膜的光学性能-荧光性、透光性、调光性、稳光性进行了全面研究,独创性地引入了调光度的概念,作为评价光生态膜调光幅度的一种方法;最后进行了调光生态膜与普通膜大棚的对照种植试验,得出调变光质增加红、蓝光光谱成分后的调光生态膜大棚实现了增产增收,品质优化的结果。从另一方面来看,实验也验证了植物光合作用对光谱的选择性吸收。在高效率人工调光光源的研究上,相较于目前普遍使用的荧光灯或高压钠灯而言,LED具有高光电转换效率、使用直流电、体积小、寿命长、波长固定与发热低冷却负荷小等优点,光量可调整、光质(LED可提供各种色光,红/蓝光比例或红/远红光比例等)可调整。LED单色性好,用单色性很高的LED对植株进行光照可以更明显地看到光质对植物生长发育的影响。本文用红蓝LED进行了对小白菜、番茄、油菜苗的补光栽培试验,完全蓝色LED光照下番茄苗生长的探索性实验,得出红光能够极大地促进植株的光合产物的积累,对光更多还原

【Abstract】 The illumination insufficient problem in vegetables fruit cultivation out of season impels researchers to seek means to change this condition. Thus the responses of plant growth to various illumination sources become hot-point of researchers’study scope The first used artificial lighting sources for plant growth is incandescent lamp, the neon lamp, the sodium lamp and so on. and researchers get some findings with them. But because these artificial illumination sources have a big electrical power consumption and they also emit spectrum which can’t match with the plant photosynthesis absorption spectrum very well and the traditional fluorescent additive in photo-ecological film can only convert UV light energy in the solar radiant energy into blue and red wavelength, being not able to use the green spectrum and the peak red wavelength is far away from the peak absorption wavelength (660nm) of chlorophyll a or the band is too narrow. Therefore the application of organic conjugated molecule and acridine additive into the photo-ecological agriculture film and newly developed high efficiency and low energy cost light source LED provide people new ways to get close to the optimum solution.Light-adjusting photo-ecological agriculture film adequately transferred the energy of low photosynthesis efficiency into high efficiency part through the specific fluorescent additive in it. And whether the exciting and the emitting spectrum is matching with the absorption spectrum of plant photosynthesis is the key to evaluate the light energy converting performance of it. Through research on the local UV radiation and solar radiation spectrum ,this paper illustrates this film have great advantage in light energy更多还原