【摘要】 目的:研究不同年份黄檗种子性状的差异,并分析导致这种差异的温度因子。方法:选择种子长度作为种子大小的表征、厚度作为子叶厚度的表征,并测定种子重量和休眠程度。单因素方差分析比较连续三年种子性状的差异,speraman相关系数法计算温度与种子性状的相关性。结果:结果表明,不同年份黄檗种子的性状均具有显著差异,种子长度最大差异为6.6%,厚度最大差异为10.1%,质量最大差异为17.8%,种子休眠程度最大差异为204.3%;温度与种子长度最高相关系数为0.701,与厚度最高相关系数为-0.612,与重量最高相关系数为0.435,与种子休眠程度最高相关系数为0.84。结论:研究结果提示,全年温度对黄檗种子的大小均会产生影响;子叶厚度和种子重量主要与最低温和温差有关;在温暖和温差较小的气候条件下生长的黄檗,其种子休眠程度较浅;寒冷和温差较大的气候条件下生长的黄檗,其种子的休眠程度较深。更多还原

【Abstract】 Objective:The purpose of this research is to investigate whether there are differences on the characters of Phellodendron amurense Rupr.seeds in different years and which temperature factors contribute to this difference.Methods:The seed length was chosen as the characterization of the seed size,the thickness as the characterization of the cotyledon thickness,and also measure seed weight and dormancy.As part of the characterization of the Ph.amurense seeds.One-way analysis of variance was used to compare the characters of Ph.amurense seeds in different years.Speraman correlation coefficient method was used to compare the correlation between temperature and characters of Ph.amurense seeds.Results:The characters of Ph.amurense Rupr.seeds in different years are different.The maximum difference of seed length was up to 6.6%,the maximum difference of seed thickness was up to 10.1%,the maximum difference of seed weight was up to 17.8%,and the maximum difference of seed dormancy was up to 204.3%;The maximum correlation coefficient between temperature and seed length was 0.701,the maximum correlation coefficient between temperature and thickness was-0.612,the maximum correlation coefficient between temperature and weight was 0.435,and the maximum correlation coefficient between temperature and seed dormancy was 0.84.Conclusion:Research results suggest the annual temperature had an effect on the size of Ph.amurense seeds.Cotyledon thickness and seed weight are mainly related to the lowest temperature and temperature difference;The dormancy degree of Ph.amurense seeds grow in warm and low diurnal temperature difference is shallow.The seed dormancy of Ph.amurense seeds grow in cold and diurnal temperature difference area is deep.更多还原