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[Objective] To study the effect of winter LED supplementary illumination on growing development of Taxus chinensis var. mairei Cheng et L.K. [Method] The effect of winter LED supplementary illumination on growing development of T. chinensis in winter was studied by setting different intensities of supplementary illumination, including 1000, 3000, 5000, and 7000lx. [Result] The condition of 3000-7000lx LED supplementary illumination could promote the growth of T. chinensis while the condition of below 1000lx had little effects on its growth. And once the supplementary illumination was more than 5000lx, the effects got smaller. What’s more, only about 126lx under LED plant growing lamp, the T. chinensis could bring the same net photosynthetic rate that under the condition of natural light (1257lx). [Conclusion] LED plant growth lamp is a kind of new light source that can bring higher net photosynthetic rate for plants at lower transpiration rate.
[Objective] To study the effect of winter supplementary lighting on growing development of Taxus chinensis var. Mairei Cheng et LK [Method] The effect of winter LED supplementary illumination on growing development of T. chinensis in winter was studied by setting different intensities of Supplementary illumination, including 1000, 3000, 5000, and 7000lx. [Result] The condition of 3000-7000lx LED supplementary illumination could promote the growth of T. chinensis while the condition of below 1000lx had little effects on its growth. Illumination was more than 5000lx, the effects got smaller. The more, only about 126lx under LED plant growing lamp, the T. chinensis could bring the same net photosynthetic rate that under the condition of natural light (1257lx). [Conclusion] LED plant growth lamp is a kind of new light source that can bring higher net photosynthetic rate for plants at lower transpiration rate.