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马铃薯种薯见光催芽是国内外广泛利用的先进技术。日本叫“浴光芽”,苏联叫“春化”,我国叫晒种。种薯放在阳光下,表皮逐渐变绿,芽的伸长受到抑制,节间显著缩短变粗,易形成短壮芽,有时甚至能长出发达的小叶。芽的基部形成大量不定根原基。皮层附近能合成大量的抗坏血酸、生长素和赤霉素等生物激素,从而促进了萌芽。幼苗根系发达,苗齐苗壮,生长极为旺盛。同时能促进早热。一般比未进行见光处理的种薯增产10～25％。
Seeing the light of potato seed germination is a widely used advanced technology at home and abroad. Japan called “bath light bud”, the Soviet Union called “vernalization”, our country called sun. Seed potatoes placed in the sun, the epidermis gradually green, bud elongation is suppressed, internodes significantly shorter and thicker, easy to form short strong buds, and sometimes even grow leaflets. The bud base forms a large number of adventitious root primordia. Near the cortex can synthesize a large number of ascorbic acid, ghrelin and gibberellin and other biological hormones, thus contributing to the bud. Seedling roots developed, Miao Miao Zhuang strong growth is extremely strong. At the same time can promote early fever. It is generally 10 to 25% more than that of the seed that has not been exposed to light.