非洲菊新品种DUS测试数量性状分级及形态性状多样性研究

对非洲菊品种11个数量性状进行了分级研究,利用54个形态性状对22个非洲菊品种进行了多样性分析。结果表明:11个数量性状可进行5个或者7个连续分布的分级,分别建立3~7或者2~8的不完整尺度;54个形态性状在22个非洲菊品种中检测到162个等位变异,平均每个性状检测到3.0个,平均有效等位变异数目为2.0209(1.0000~3.9672);Shannon's多样性指数平均为0.7578(0~1.4650)。22个非洲菊品种相似系数分布在0.67~0.86,当相似系数为0.70时,22个非洲菊品种可分为3类。花序类型为单瓣的品种和外轮舌状小花上表面颜色数量为2种的品种能和其他品种有效的区分。

Classification for Gerbera DUS Testing Quantitative Traits and Diversity Analysis of Mrphological Characteristic

The 11 quantitative traits were classified and diversity of 54 morphological characteristics were analyzed with 22 gerbera varieties. The results showed that 11 quantitative traits can be classified to five or seven continuous grades, 3-7 or 2-8 incomplete scale was set up. There were 162 alleles for 54 morphological characteristics variations in 22 gerbera varieties, the average was 3.0. The average effective alleles was 2.0209 (1.0000 ~- 3.9672). The Shannon's diversity index averaged from all morphological characteristics was 0.7578 with a range of 0.0000 ~ -1.4650. Similarity coefficient of 22 varieties was from 0.67 to 0.86. The 22 gerbera varieties can be divided into three groups according the threshold with similarity of 0.70. Varieties of single flower or bicolored varieties with 2 colors on the outer side of outer ray floret can effectively distinguish from other varieties.