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腾冲红花油茶开花物候特性分析
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摘要
以云南省腾冲市宝峰山腾冲红花油茶实生群体为对象,连续3a进行花期物候观测,结果表明,居群一般在12月中旬进入初花期,次年1月上旬进入盛花期,3月下旬进入末花期,花期长100d左右;单花开放时长2~22d,平均8.8d,多数为8d或6d;单株花期时长19~69d,平均约44d,多数单株花期时长34~49d;通过对腾冲红花油茶花期物候进行聚类分析,按进入花期的早晚,可分为早、中、晚、特晚4大类型,占比分别为5%、55%、35%和5%,按花期时长可分为特短、短、长和特长4大类,占比分别为5%、25%、45%和25%;该研究为腾冲红花油茶资源开发与利用、新品种选育提供了借鉴。
The seedlings population of Camellia reticulate located at Baofeng Mountain of Tengchong,Yunnan province was selected to investigate the flowering phenophase during continuously 3 years.The results showed that the population entered the early flowering in the middle of December,entered the full-bloom and end of flowering stage in first ten-day of January and last ten-day of March in the following year,respectively.The flowering period could last for 96 days.The flowering period was 2-22 days for single flower and the average flowering period was 8.8 days.The flowering period of most individual flower was 8 or 6 days.The flowering period was 19-69 days for individual tree and the average flowering period was 44 days.The flowering period of most individual tree was 34-49 days.The clustering analysis of flowering phenophase was investigated and four types of flowering phenophase were classified according to the date entering the early flowering stage.And they were extremely early,early,late,extremely late and their ratio in population was 5%、55%、35% and 5%,respectively.Meanwhile,four types of flowering phenophase were also classified according to the duration of flowering period.And they were extremely short,short,long,extremely long and their ratio in population was 5%、25%、45% and 25%,respectively.The research provided references for exploration and utilization of Camellia reticulateresources and breeding work in the future.
引文
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