摘要
研究了LED光源空间光谱分布对辣椒(CapsicumannuumL.)生长的影响。用平面LED光源设置辣椒生长所需空间光谱环境,选择红光强度比为3∶2∶1的3个区域,观测记录辣椒生长过程;通过改变蓝红光强和蓝红光比进行对比试验。结果发现红光最强的区域辣椒果实质量是红光强度最弱区域的2倍;在蓝红光比不变的条件下,蓝、红光强同比降低20.0%的区域辣椒果实重量降低约7.0%,蓝红光比为5∶1的对照区域辣椒果实质量比蓝红光比为1.2∶1的区域降低了约69.0%。说明空间红光光谱分布较强的区域更有利于辣椒生长,控制空间光谱红蓝光比不变,改变空间光强对辣椒生长也有一定影响,空间蓝光光谱分布较强的区域不利于辣椒生长。
The effects of spatial spectral distribution on the growth of pepper(Capsicum annuum L.) were studied. Using a plane LED light source to set the spatial spectrum required for pepper growth, three areas with a red light intensity ratio of 3∶2∶1 were selected to observe and record the growth process of pepper;The contrast experiments were conducted by changing the blue-red light intensity and blue-red light ratio. As a result, it was found that the weight of the pepper in the region with the strongest red light intensity was twice that of the weakest region;Under the condition that the ratio of blue to red light was unchanged, the weight of pepper dropped by about 7.0% in the region where the intensity of blue-red light intensity is reduced by 20.0%, the weight of the pepper in the region with a 5∶1 blue-red light ratio was about 69.0% lower than that in the 1.2∶1 blue-red light ratio. The results showed that the regions with strong spatial distribution of red light were more conducive to pepper growth, and changes in spatial light intensity had a certain effect on the growth of pepper when the ratio of spectral red-blue light was invariable, it was also found that the regions with strong spatial distribution of blue light was not conducive to pepper growth.
作者
邓礼松
陈方林
彭宣
徐敏敏
高向明
苑进社
DENG Li-song;CHEN Fang-lin;PENG Xuan;XU Min-min;GAO Xiang-ming;YUAN Jin-she(College of Physics and Electronic Engineering,Chongqing Normal University,Chongqing 401331,China;College of Life Science,Chongqing Normal University,Chongqing 401331,China)
出处
《湖北农业科学》
2019年第13期84-87,共4页
Hubei Agricultural Sciences
基金
重庆高校新型能源转换材料与器件创新团队项目(CXTDX201601016)
