沙拐枣果实形态变异的数值分析

研究利用新疆、甘肃河西、宁夏沙坡头地区采集的头状沙拐枣（Ｃalligonum caput-medusae)、红皮沙拐枣(C.rubicundum)、白皮沙拐枣（Ｃ.leucocladum)、泡果沙拐枣（Ｃ.junceum)、河西沙拐枣（C.potaninii)和蒙古沙拐枣（C.mongolicum)果实的形态性状指标，应用双因素重复方差分析法，对不同种群间果实的形态变异进行了研究，得出红皮沙拐枣、蒙古沙拐枣、白皮沙拐枣、泡果沙拐枣下不同种群间果实的形态变异差异显著，头状沙拐枣、河西沙拐枣果灾的形态变里差异不显著，用系统聚类分析，对各种群间的相似性进行了研究。

The numerical analysis of morphologic variation of seed of Calligonum

In this paper,the morphologic variation of 6 species of Calligonum is studied through applying the method of variance analysis.The results suppose that there is significant difference among the population of Calligonum rubicundum、C.leucocladum、C.junceum、C.potaninii、C.mongolicum,there is no significant difference of C.caput-medusae and C.potaninii.The similarity of population of each species is gotten by systematical clustering method.