Clustering analysis showed that plants in the genus of p . salicina could be distinguished from those in the genus of p . ameniaca ; there was some genetic relationship among p . mume , p . salicina and p . ameniaca , of which p . ameniaca was closer to p . mume in genetic relationship ; and the distance between varieties of each genus was different , with the smallest being 0 . 1138 and largest being 0 . 7633 . the genetic distance reflects genetic relationship between tested materials . the result that varieties of each genus were close to each other in genetic relationship testified the traditional morphology - based taxonomy from the genomic dna 不同引物扩增出的带型完全不同，聚类分析结果表明，李属植物和杏属植物能完全被区分开，李、杏和梅之间表现出一定的亲缘关系，其中杏，梅之间的亲缘关系较近，各属品种之间都有不同的遗传距离，最小距离为0 . 1138 ，最大距离为0 . 7633 ，遗传距离的大小反映了材料间亲缘关系的远近，各属内品种的亲缘关系比较近，这一聚类结果从供试材料基因组dna分子水平验证了传统的形态学分类观点。
Because of the unreasonable restriction of actual models , soil water content at the end of the stage that its sensitivity parameter is small is always close to the wilting coefficient , this makes planting risk . to deal with the planting risk of inadequate irrigation schedule , this paper develops a new multi - objective model for inadequate irrigation schedule programming , and uses the staged multi - dimensional fuzzy optimization method to get the decision - making 针对现行非充分灌溉制度优化设计模型中约束的不合理性，致使作物在敏感性指数小的阶段末土壤含水率易趋于凋萎系数，生产中存在风险的不足，本文提出了考虑作物种植风险指标情况下，非充分灌溉制度的多目标优化模型；并采用本文提出的多维多目标动态规划方法进行模型求解。
For the soil infiltration , generally , the order of the original and stable infiltration speed from big to small is the inner , the outer space and the paludal trace , as well as layer a b . in the view of the rainfall balance of the wildwood , the canopy interception is averagely 61 . 10 % of the rainfall , the trunk runoff 0 . 80 % , the inner 38 . 10 % , the surface and the litter evapotranspiration 18 . 00 % , the surface runoff does n ' t appear in the forest , and the interflow is also very small , which is 0 . 30 % of the total rainfall ; the conflux is 21 . 10 % 原始森林的水量平衡中，林冠截留量平均占降雨的58 . 27 ，树干径流量占降雨的0 . 80 ，林内降雨占降雨的40 . 93 ，地表蒸发及地被物蒸散量占总降雨的20 . 13 ，林内很少发生地表径流，壤中流量也极少，只占总降雨的0 . 07 ；汇流量占总降雨的21 . 43 。
