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在自然光照100%(A)、85.2%(B)、75.8%(C)、59.7%(D)4种光照强度条件下,研究了不同光照强度对金荞麦生长发育及形态的影响。结果表明,光照强度减弱缩短了金荞麦营养生长时问,提早进入生殖生长阶段,生殖生长时间明显延长,整个生育期延长。光照强度的减弱会造成单株叶片数量、叶面积、一级分枝数、光合产物减少,下降幅度随光照强度减弱程度的增加而增大,适度遮光(处理B)增加了茎的高度,生长前期(分枝期)叶面积增大。
The effects of different light intensities on the growth and morphology of Fagopyrum Buckwheat were studied under four light intensities of 100% (A), 85.2% (B), 75.8% (C), 59.7% (D) The results showed that the diminished light intensity shorten the golden buckwheat vegetative growth when asked early into the reproductive growth stage, reproductive growth significantly prolonged, the entire growth period extended. The decrease of light intensity caused the number of leaves per plant, the area of leaves, the number of primary branches and the decrease of photosynthate, and the decreasing amplitude increased with the decrease of light intensity. Moderate shading (Treatment B) increased stem height, growth Early (branching) leaf area increased.