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- vule ratio breeding system 繁育系统
- Genetic diversity within a breeding system of Pinus tabulaeformis. 油松育种系统遗传多样性研究。
- Based on the results of emasculation,bagging and artificial pollination studies,Cistanche deserticola Ma takes selfing as the main breeding system. 结合去雄、套袋和人工授粉试验结果，认为肉苁蓉属于以自交为主的繁育系统。
- Pollen-ovule ratio (P/O) of the angiosperms, the ratio of pollen grains to ovules, can reflect more indications than floral morphology for the breeding systems. 摘要花粉-胚珠比系指开花植物之花粉数与胚珠数的比值，对植物之繁殖系统较花之形态更具有指标作用。
- This kind of Fu lies Morpheus means not only oppress easily splanchnic, make breathe not free, opposite breed system also has certain effect. 这种俯卧位的睡眠方式不但容易压迫内脏、使呼吸不畅，对生殖系统也有一定影响。
- Omit condition of zoology, economy according to Qinghai, thoroughbred breed system includes blooded breed system, cross breed system 2 respects. 根据青海省生态、经济条件 ,良种繁育体系包括纯种繁育体系、杂交繁育体系 2个方面。
- The high level of genetic variation and clonal diversity found in E. songoricum are probably due to outcrossing or mixed-mating breeding system and multi-clone origin of populations. 本研究结果表明, 和其他荒漠植物相比, 准噶尔无叶豆表现出较高的遗传变异水平和克隆多样性, 这主要与该物种兼性生殖的繁育方式及多克隆起源有关;
- Breeding System for High Grade Beef Production 高档牛肉生产所需的制种体系
- Review on breeding system of runner bean 多花菜豆繁育系统的研究进展
- Sex allocation theory provides a general explanation for diversity in breeding systems, in particular, it explains why most flowering plan ts are hermaphroditic. 文献中支持自交减少植物雄性投入的证据有很多，但是对繁殖分配与自交率的关系目前还没有系统的研究。
- Conservation and Breeding System 体系
- In this thesis, we discussed these species adaptive evolution through the geographical environment succession, main species morphological characters, breeding system and genetic diversity in the region. 本文从地理环境演变、主要物种的形态、繁育系统以及遗传多样性方面探讨西鄂尔多斯物种的适应性进化问题，研究结果如下：
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- Birth is much, but breeding is more. 出身重要，教养更重要。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Only Vule, 80, her youngest daughter still lives. 现在只有她最小的女儿武莱还活着。
- Random mating within a breeding population. 自由交配在一个育种群中自由交配
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- APPLICATION OF COMPUTER ASSISTED BREEDING SYSTEM IN MODERN HOGPENS 现代化猪场计算机辅助育种系统的开发与应用研究
