绿光在促进植物生物质方面同样有效,如红/蓝光:一个元分析
Yunke Chen1,2, Zhonghua Bian2, Leo F M Marcelis1
1Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, PO Box 16, Wageningen 6700AA, The Netherlands.
Journal of experimental botany
|June 3, 2024
概括
绿色光线可以提高植物用水效率和芽生根比率,同时稍微增加新鲜重量和叶面积. 它对生物质的影响因作物种而异,这表明针对优化作物生长的有针对性的研究.
科学领域:
- 植物生理学 植物生理学
- 农业科学 农业科学
- 摄影生物学 摄影生物学
背景情况:
- 绿灯对植物生长的影响仍然不清楚,尽管它对作物生产具有重要意义.
- 了解绿光的作用对于优化园艺人工照明至关重要.
研究的目的:
- 对绿光对各种植物特征的影响进行全球的元分析.
- 为了解决绿色光是否促进或抑制不同物种的植物生长的问题.
主要方法:
- 从48个出版物中编制了136个数据集,涵盖了17种作物物种.
- 通过将红色/蓝色背景光下的特征与绿色光和没有绿色光在相同强度下进行比较来计算绿色光效应.
主要成果:
- 绿灯显著提高了内在的用水效率 (+15%) 和芽与根的比率 (+13%),同时降低了口腔导电性 (-15%).
- 它略微增加了新鲜重量 (+4%) 和叶面积 (+7%),但没有增加干重量,导致干物质含量减少 (-2%).
- 生物质效应取决于物种,对生菜和微绿菜产生积极影响,对玄米和西红产生负面影响.
结论:
- 绿光在增加生物质方面的有效性与红光和蓝光相美.
- 未来的研究应该调查绿灯在水损失调节,阴影信号和物种特定生物质反应中的作用.
相关概念视频
02:00Photoreceptors and Plant Responses to Light
20.3K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.3K
01:35Light as Energy
78.3K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
78.3K
02:16Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K