千日红是苋科、千日红属一年生草本花卉。花小而密生,为主要观赏部分,经久不凋。花期8—10月。适宜作花坛、花境材料,也可盆栽或作切花,还是理想的自然干花,花序可入药。千日红多用种子繁殖,由于其种子体积太小,采收不易,即使采收到的种子再进行播种繁殖也很难保证其具有母株原有的优良性状。利用组培技术对千日红进行 Amarantha is amaranth, a thousand annual red herbaceous flowers. Flowers small and dense, as the main part of the ornamental, enduring not withered. Flowering from August to October. Suitable for flower beds, flower materials, but also potted or cut flowers, or ideal natural dried flowers, inflorescences can be used as medicine. Adventitious use of seed multiply, due to its seed size is too small, harvested not easy, even if the harvested seed and then sown also difficult to ensure that it has the original good characteristics of the mother plant. Using tissue culture technology for thousands of days red