Effect of LED in Different Light Qualities on Propagation,Rooting and Growth of Anoectochilus roxburghii Plantlets
The effect of 8 different LED light,namely white,red,blue,R8B2,R7B3,R5B5,R3B7 and R2B8 on multiplication and rooting in vitro of Anoectochilus roxburghii ‘HongXia’ and A.roxburghii in Dongyuan were investigated,and the plant height,fresh/dry weight and chlorophyll content were also analyzed.The results showed that the light of RSB2 and red light could increase the multiplication coefficient of A.roxburghii in Dongyuan,while the multiplication coefficient of ‘HongXia’ was insignificantly among all LED treatments.The light of white,red,R8B2 and R7B3 could promote the rooting and seedling height of the two species,and the light of white,R8B2 and R7B3 also increased the fresh/dry weight and chlorophyll content,but the blue light significantly inhibited the rooting of the two species,and the rooting rate,root number and root length were significantly lower than other treatments.Under blue light,the fresh and dry weight of the plantlets in vitro were also low.Taken together,the best light for the multiplication of A.roxburghii was R8B2 and red,and R8B2 and R7B3 were the best for the rooting of A.roxburghii.
国家科技期刊平台
NSTL
万方数据
维普
