Effects of Cold Treatments on Flowering of Rhododendron'Huayan'Potted in Autumn and Winter
In this experiment,the effect of different cold-treatment times on Rhododendron'Huayan'flowering in the autumn and winter were studied,by conducted a 35-day cold-treatment on four times,such as July 7,August 11,September 1,and September 15,using Rhododendron'Huayan'potted as materials.At the same time,the effect of different cold-treatment durations on Rhododendron'Huayan'flowering in the autumn and winter were also studied,by conducted a 35-day,45-day and 55-day of cold-treatment from September 27.Meantime,the variation in active accumulative temperature was analyzed by statistics method.The results showed that it could achieve 96.70%～100.00%flowering rate under the natural conditions in autumn and winter,with about 45-day flowering period,13 cm×14 cm of inflorescence and larger than 5 cm×6 cm of single flower within 51～56 days out of the cold-treatment,by a cold treatment of 35～45 days for Rhododendron'Huayan'potted in mid-late September.The results of meteorological data analysis showed that under the condition of the mature of flower bud and meeting the cold requirement,≥10℃active accumulative temperature and≥600.0℃·d,Rhododendron'Huayan'could begin flowering.The experimental results could provide reference for the low-carbon promotion of flowering in autumn and winter for new varieties Rhododendron in China.
Rhododendron'Huayan'Duration of cold treatmentFlowering in autumn and winterActive accumulative temperature
国家科技期刊平台
NSTL
万方数据
