Effects of Blue Light and Red Light on Kidney Bean Plants Grown under Combined Radiation from Narrow-Band Light Sources
Effects of Blue Light and Red Light on Kidney Bean Plants Grown under Combined Radiation from Narrow-Band Light Sources
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蓝光和红光对窄带光源联合辐射下芸豆植物的影响
DOI：
10.2525/ecb1963.38.13
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
K. Shoji
中科院分区：
文献类型：
--
作者：
H. Hanyu;K. Shoji
芸豆 (Phaseolus vulgaris L.) 植物在不同水平的蓝光和红光广谱辐射下生长 12 天。使用四种窄带荧光灯，在相同水平的光合光子通量密度（100μmol m-2 s-1）和红光与远红光子通量比（R：FR；1.1）下增加了蓝光或红光。蓝光和红光的增加导致干物质总量增加，但干物质分布也有很大不同。增加蓝光对叶面积没有显着影响，但导致茎长度大幅减少。另一方面，增加红光会导致叶面积增加和茎长度小幅但一致的增加。数据表明，总干物质的增加是由于在蓝光增加的情况下每单位叶面积干物质产量的增加，而另一方面，由于在红光增加的情况下叶面积的增加。除了 R : FR 引起的生长反应外，结果表明，蓝光的增加会极大地抑制茎的伸长和叶片的增厚，而在 R : FR 恒定的情况下，红光的增加会加速茎的伸长和叶片的扩展，而不会改变叶片的厚度。
Kidney bean (Phaseolus vulgaris L.) plants were grown at different levels of blue and red light under broad-spectrum radiation over 12 d. Using four kinds of narrow-band fluorescent lamps, blue or red light was increased at the same levels of photosynthetic photon flux density (100μmol m-2 s-1) and red to far-red photon flux ratio (R: FR; 1.1) . Increases in both blue and red light caused increases in total dry matter, but also quite different dry matter distribution. Increasing blue light did not have a significant influence on leaf area but caused a large decrease in stem length. On the other hand, increasing red light caused both increases in leaf area and a small, but consistent, increase in stem length. The data suggest that increases in total dry matter are due to increases in dry matter production per unit leaf area in the case of increasing blue light, and on the other hand, due to increases in leaf area in the case of increasing red light. Besides the growth response caused by R : FR, the results indicate that increases in blue light cause great inhibition of stem extension and thickening of leaf, while increases in red light at constant R : FR accelerates both stem extension and leaf expansion without modifying leaf thickness.