Field investigation was performed on the floral syndrome,pollination characteristics,pollinator behaviors and breeding system of Iris tectorum by continuous observations and analyzing data of out-crossing index,pollen-ovule ratio,fruit-set ratio and seed-set ratio.
对鸢尾（Iris tectorum）居群的花部特征、授粉特性、繁育系统及访花昆虫行为等进行了研究。
参考来源 - 鸢尾的花部结构及繁育系统特征Analysis of gene differential coefficient (GST) indicating that genetic variation of Medicago sativa is mainly exits within varieties . This characteristic is related to the breeding system (out - breeing) of Medicago sativa.
基因分化系数（GST）分析结果表明，苜蓿的遗传变异主要存在于品种内，这一特点与多年生苜蓿的繁育体系（异交）有关。
参考来源 - 苜蓿地方品种遗传多样性的研究──RAPD标记Pollination ecology and the breeding system of Impatiens lateristachys,a species endemic to the Emei Mountain were studied. The floral phenology,floral structure,pollen-ovule ratio(P/O),pollen viability,floral visitors and their behavior,and the breeding system were observed and determined.
通过对峨眉山特有种侧穗凤仙花的开花生物学特性、花器官结构、传粉者种类和访花行为、繁育系统、花粉胚珠比（P/O）及花粉活力的研究。
参考来源 - 侧穗凤仙花的传粉生态和繁育系统The breeding system,mating system and seed twice-dormancy may be limit the gene flow, and then lead tothe genetic differentiation among populations.
滇重楼的繁殖方式，交配系统以及种子的二次休眠特性，可能影响到滇重楼居群间的基因交流，从而导致目前各居群间遗传分化的产生。
参考来源 - 滇重楼遗传多样性的ISSR分析·2,447,543篇论文数据，部分数据来源于NoteExpress
The faultiness of breeding system and pests destroying cause the low seed-set rate.
五脉山黧豆的传粉系统不完善和虫害是结实率低的主要原因。
Responses of main characters of upland cotton to mass selection-mass crossing breeding system were studied.
研究了陆地棉主要性状对混选—混交育种体系的响应。
Objective To reveal the breeding system and endangered mechanism of Dendrobium officinale in Danxia landform.
目的：揭示丹霞地貌生境中铁皮石斛的繁育系统及濒危机制。
应用推荐