Effects Of Light On The Growth Of Off-season Pot Chrysanthemum

Pot chrysanthemum is one of important cultivated forms of chrysanthemum which suffers long-term cultural and cultivated history. But, because of complicated cultivated technology, china has little voice in world market of the pot chrysanthemum cultivars. The experiment materials are pot chrysanthemum cultivars from Holand CBA Company. All the cultivars enjoy high level productive industrialization and profitableness in market. We process off-season cultivated experiment; study impact of photoperiod and light quality on growth development of pot chrysanthemum cultivars. The author summarized the technology of the annual production of the pot chrysanthemum cultivars, which can be greatly carried out in Beijing and supply a consult for traditional pot chrysanthemum cultivars in China. The results are as follows:1.18 imported cultivars have been planted for two years in Beijing. An easy cultivated technology was worked out for off-season pot chrysanthemum cultivars production by adjusting day length, which could give consult for large-scale production.2. By tissue culture experiment, MS culture medium is appropriate for pot chrysanthemum cultivars production, for which production cost would be cut down.3. B-Nine is an ideal growth regulator for pot chrysanthemum cultivars. The experiment materials were 9 cultivars. 3 treatments: 0.1%,0.3%,0.5% were made. Different B-Nine concentration had different effects and the impact would differ greatly in different cultivars. Generally, 0.1% would be in best effect.4. By lighting and shading, leaf development in three seasons was calculated and flower buds development in summer was tracked, which could complement scheduler for pot chrysanthemum cultivars.5. By using five color films (white, red, blue, yellow and green), we study the impact of light quality on growth development of pot chrysanthemum cultivars. The results are as follows: plant height was influenced dramatically by light quality. SPAD and fresh weight of leaf were impacted by light quality. Florescence except flower fresh weight and flower diameter was influenced by light quality .