对臭椿的8个种源的种子生物学特性变异进行了初步研究,测定指标包括种子形态、千粒重、净度、含水率、发芽率、发芽势、平均发芽速度和活力指数.结果表明,不同种源的臭椿种子的各项测定指标差异明显.其中千粒重最大的种源是鲁南,为29.60...对臭椿的8个种源的种子生物学特性变异进行了初步研究,测定指标包括种子形态、千粒重、净度、含水率、发芽率、发芽势、平均发芽速度和活力指数.结果表明,不同种源的臭椿种子的各项测定指标差异明显.其中千粒重最大的种源是鲁南,为29.60 g ,最小的是安徽合肥,为20.33 g,平均值为23.43 g;供试种子发芽率的平均值为49%,发芽率最高的种源是鲁南,为79%,最小的是安徽合肥,为21%;活力指数平均值为21.98,最大的是鲁南,为33.53,最小的是安徽合肥,为6.17(河南种子未发芽除外);种翅的长、宽与臭椿种实重量之间相关性不显著.进一步聚类分析,将供试种源划分为4类,其中鲁南、宁夏中卫、鲁中、鲁东4个种源的种子质量较好.展开更多
Based on the gray theory and GM （1, 1） model, the various indexes in 2013-2020 are predicted using the data of all indexes of the economic development of Yunnan＇ s 8 minority areas in 2013-2020 and also compared wi...Based on the gray theory and GM （1, 1） model, the various indexes in 2013-2020 are predicted using the data of all indexes of the economic development of Yunnan＇ s 8 minority areas in 2013-2020 and also compared with the standard values of all indexes of building a well-off society in 2020, and the differences between them are analyzed. The purpose of this study is to provide a reference basis for Yunnan province＇ s government to analyze the economic development of the minority areas.展开更多
文摘对臭椿的8个种源的种子生物学特性变异进行了初步研究,测定指标包括种子形态、千粒重、净度、含水率、发芽率、发芽势、平均发芽速度和活力指数.结果表明,不同种源的臭椿种子的各项测定指标差异明显.其中千粒重最大的种源是鲁南,为29.60 g ,最小的是安徽合肥,为20.33 g,平均值为23.43 g;供试种子发芽率的平均值为49%,发芽率最高的种源是鲁南,为79%,最小的是安徽合肥,为21%;活力指数平均值为21.98,最大的是鲁南,为33.53,最小的是安徽合肥,为6.17(河南种子未发芽除外);种翅的长、宽与臭椿种实重量之间相关性不显著.进一步聚类分析,将供试种源划分为4类,其中鲁南、宁夏中卫、鲁中、鲁东4个种源的种子质量较好.
文摘Based on the gray theory and GM （1, 1） model, the various indexes in 2013-2020 are predicted using the data of all indexes of the economic development of Yunnan＇ s 8 minority areas in 2013-2020 and also compared with the standard values of all indexes of building a well-off society in 2020, and the differences between them are analyzed. The purpose of this study is to provide a reference basis for Yunnan province＇ s government to analyze the economic development of the minority areas.
