Plants grown outdoors receive light energy from the sun. When grown indoors, plants typically receive light energy from artificial sources, such as LED horticulture grow lights. Green plants need light for a very important reason. Plants convert light into food that’s used as energy to grow, a...
A. conclusion B. hypothesis C. result D. analysis 相关知识点: 试题来源: 解析 B。A 选项 conclusion(结论)是在实验后得出的;B 选项 hypothesis(假设)符合题意,认为植物在红光下生长得更好是一个假设;C 选项 result(结果)也是实验后产生的;D 选项 analysis(分析)通常在有数据后进行。反馈 收藏 ...
State Department spokesman Adam Ereli said Thursday the U.S. position was that "there's no future for the reactor project." The light-water reactors being built by KEDO are difficult to adapt to nuclear weapons production and were meant to replace three North Korean reactors that were considere...
light source is used as a far-red lighting device for growing plants, the radiation illuminance just below the lighting becomes higher than necessary.SOLUTION: In a far-red lighting device 110 for growing plants, an LED chip 123A of a first LED light source 120A faces the direction ...
In natural conditions, far-red light plays an important role in signaling the shading effects of neighboring plants, which triggers lightacclimationchanges and strategies for plant competition, such asstem elongation, reduced branching and accelerated leaf senescence of bottom leaves [161,162]. However...
light for performing photosynthesis, it only absorbs some wavelengths of light and reflects others.Plants absorb most of the red light that hits them, but plants only absorb some of the far-red light that hits them.They reflect the rest.Remember this, because it's going to be relevant in ...
OK. Imagine there are two plants. One below the other.The plant on top would absorb most of the red light for photosynthesis, but reflect most of the far-red light. That would lead to the plant in its shade sensing an unusual ratio. There will be less red light and more far-red ...
Increased reflection of far-red light among plants can lower the red:far-red ratio (R:FR) of horizontally-propagated light before substantial shading among plants occurs. Although previous research suggests that altered R:FR can affect corn growth, it is not understood how early-season low R:FR...
synthesis of anthocyanins55,56. The joint cross-response of multiple environmental factors is the general trend of future research on plant growth and development and quality formation. Light and temperature often act on plants together, and PIF4, as an important transcription factor of light and ...
To investigate the effects of red light and blue light on leaf senescence and active oxygen metabolism,the two grape variety Vitis vinifera'Italia'and V. vinifera'Centenial Seedless' with different senescence-types cultured in protected and delayed cultivation were studied.'Italia'and'Centenial Seedless...