甜菜属于三碳(C_3)植物,具有较强的光吁吸作用,一般可消耗光合同化碳素的20～40%。甜菜主要在封垄后茎叶繁茂生长期的郁蔽条件下,白天光呼吸是限制净光合,降低产质量的基本因素。如果抑制或减少甜菜的光呼吸强度,对其产质量将会有较大的影响。根据国内外学者研究基本上搞清了光呼吸的生物化学过程——乙醇酸代谢,并对它的化 Beet belongs to the three-carbon (C_3) plant, which has a strong light-sucking effect and can generally consume 20-40% of light-acclimated carbon. Beet mainly in the lush growth conditions stems and leaves after the seal ridge, the daytime light breathing is to limit the net photosynthesis, reduce the basic factors of quality of production. If you inhibit or reduce the photoresponsive strength of sugar beet, the quality of its production will have a greater impact. According to domestic and foreign scholars basically figure out the biochemical process of photorespiration - glycolic acid metabolism, and its