Green light is similarly effective in promoting plant biomass as red/blue light: a meta-analysis

文献类型： 外文期刊

第一作者： Chen, Yunke

作者： Chen, Yunke;Bian, Zhonghua;Marcelis, Leo F. M.;Heuvelink, Ep;Kaiser, Elias;Chen, Yunke;Bian, Zhonghua;Yang, Qichang

作者机构：

关键词： Green light; intrinsic water use efficiency; LED; meta-analysis; plant growth; quantitative analysis; shoot-root ratio; stomatal conductance

期刊名称：JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 0022-0957

年卷期： 2024 年

页码：

收录情况： SCI

摘要： Whether green light promotes or represses plant growth is an unresolved but important question, warranting a global meta-analysis of published data. We collected 136 datasets from 48 publications on 17 crop species, and calculated the green light effect for a range of plant traits. For each trait the effect was calculated as the ratio between the trait value attained under a red/blue background light plus green, divided by the value attained under the background light only, both having the same light intensity. Generally, green light strongly increased intrinsic water use efficiency (15%), the shoot-to-root ratio (13%), and decreased stomatal conductance (-15%). Moreover, green light increased fresh weight to a small extent (4%), but not plant dry weight, resulting in a reduced dry matter content (-2%). Hence, green light is similarly effective at increasing biomass as red and blue light. Green light also showed to increase leaf area (7%) and specific leaf area (4%; i.e. thinner leaves). Furthermore, effects of green light were species-dependent, with positive effects on biomass for lettuce and microgreens, and negative effects in basil and tomato. Our data suggest that future research should focus on the role of green light in modulating water loss, its putative role as a shade signal, and the causes for its species-specific effects on crop biomass. A meta-analysis of green light effects on plant growth shows minimal effect on biomass but a strong increase in water use efficiency and shoot:root ratio, along with decreased stomatal conductance.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序