Abstract:

With the shoots culture in vitro as explants, the effects of 5 exogenous Hormone on growth and flowering of Celosia Cristat in vitro were studied. The results showed that IAA and NAA could promote the rooting and flowering in vitro, the flowering rate after 30 d of culture was 100% in medium of MS+IAA 0.5 mg/L or NAA 0.1 mg/L. KT 0.5~1.5 mg/L promoted differentiation and blooming, but 6-BA had inhibition for flower bud of plantlet. GA3 profited for root inducing and flower formation, all the plantlets flowered in MS medium added GA3. Rooting and flowering of Celosia Cristat in vitro had correlation characteristic, rooting rate was positively correlated with flowering rate (R=0.902, P<0.01) and flowering number (R=0.729, P<0.01).