摘要:人工环境条件下光谱显著地影响水稻的生长,本研究以“武运粳24号”水稻为材料,采用LED调制光谱分布,分别在红光(峰值波长660nm (R660) 和630nm(R630))和蓝光(峰值波长440nm(B440) 和460nm(B460+W))的基础上添加宽光谱的白光(W),以自然光照处理为对照(C),研究R660+W、R630+W、B440+W和B460+W光谱对水稻生长发育及产量的影响,旨在探索不同光谱分布对室内栽培水稻生长发育及产量的影响。其结果显示:R660+W处理的株高显著高于其它处理,B460+W处理最小;孕穗期,R660+W处理的叶绿素a和类胡萝卜素含量最大。抽穗期B440+W处理的类胡萝卜素含量最低。灌浆期,R660+W处理的叶绿素b和类胡萝卜素显著大于其它处理。成熟期,B440+W处理的光合色素含量显著大于其它处理;R660+W处理产量显著高于其它处理。28125 毕业论文关键词:光谱分布;水稻;生长动态;光合色素;产量
Effect of Different Spectral Distribution on Growth and Yield of Rice
Abstract: Under artificial environment condition,the spectrum significantly affected the growth of rice. This experiment uses LED plant light source,with ‘Wuyunjing 24’ rice as materials and sets four groups of spectral processing.They are R660+W(red wavelength660nm),R630+W(red wavelength 630nm),B460+W(blue wavelength460),B440+W(blue wavelength440) and natural light(C) as the contral.
Studying the effects of different spectral distribution on the growth and yield of rice aims to explore the effects of different spectral distribution on the growth and yield of rice grown indoors.Its result as follows:the plant height of R660+W treatment was significantly higher than that of other treatments and the plant height of B460+W treatment was the lowest.At booting stage, chlorophyll a and carotenoid content in R660+W treatment were the highest.At heading stage, content of carotenoids in B440+W treatment was the lowest.At the filling stage, the chlorophyll b and carotenoid content of R660+W treatment were significantly higher than those of other treatments.In mature stage, the photosynthetic pigment content of B440+W treatment was significantly higher than that of other treatments and the yield of R660+W treatment was significantly higher than that of other treatments.
Key words: spectral distribution;Oryza sativa L;growth dynamic;photosynthetic pigment;yield
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