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- RAPD Analysis on Genetic Diversity of Wild Population of Lespedeza Michx. 胡枝子属植物野生居群遗传多样性RAPD分析。
- For cultivation, elvers of the eel are caught from the wild population in estuaries during their upstream migration. 为了养殖的目的,渔民于河口域捕获即将溯河的野生鳗线族群。
- Wild populations of trees usually carry a large "genetic load". 树木的野生群体往往具有大量的“遗传负荷。”
- But wild populations have been reduced by too much harvesting. 但是野生的由于过度收割已经减少了。
- Variability in incidence of apomictic and sexual embryo sacs was detected in Apluda mutica at Guangzhou City during different seasons in a wild population for two years. 摘要对广州地区水蔗草在不同季节的无融合生殖胚囊和有性生殖胚囊频率进行了研究。
- As compared with that of artificial T. albonubes population, the otolith increment of wild population was higher in definition and contrast, but not regular in width. 与人工养殖的唐鱼相比,自然种群唐鱼耳石生长轮的清晰度和对比度高,但生长轮宽度规则性较低。
- However, just removing hatchery fish may not ensure the survival of wild populations. 但是,仅仅取消孵化场鱼类可能无法确保野生鱼类种群的存活。
- "What happens to wild populations when they interbreed with hatchery fish still remains an open question," Blouin said. Blouin说:“野生鱼类与孵化场鱼类杂交后发生了哪些变化仍然是一个尚未解决的问题。
- Similar principles underlie the evolution of new body forms in completely wild populations of stickleback fish. 从完全野生的族群演化出新体形的棘鱼,也是透过类似的原则。
- A white-flowered form was introduced to China; wild populations most often have red or reddish purple flowers. 一个白色的花的类型引进到中国栽培;野生种群最通常有红色的或带红色的紫色的花。
- But wight wild populations have been reduce reduced by too much havestharvesting. 但是野生的数量已经因为采摘而锐减。
- The researchers say there has already been a collapse in wild populations of almost one-third of currently fished seafoods. 研究说,大约有当前捕获量的三分之一海鲜已经在野生世界里灭绝。
- The researchers say there has already been a collapse in wild populations of almost one-third of the currently fished seafoods. 研究人员表明已经有三分之一的野生的海产匮乏了。
- Is any of these wild fruits safe to eat? 这些野生水果有哪一种是安全可吃的吗?
- This city has a population of more than 1,000,000. 这个城市人口超过一百万。
- A parakeet(Melopsittacus undulatus)native to Australia and having green,yellow,or blue plumage.It is a popular cage bird bred in a variety of colors not found in wild populations. 虎皮鹦鹉一种长尾鹦鹉(虎皮鹦鹉)属原产于澳大利亚,有绿色,黄色或蓝色的羽衣。
- It is suggested that genetic diversity of C. aciculatus in subtropics of China is abundant because of the great variation observed in the wild populations. 结果也表明竹节草不同居群的抗旱性差异较大,说明我国亚热带地区竹节草野生种质资源具有较丰富的遗传多样性。
- These 30 Australian beekeepers are being taught how to search for a parasite called the varroa mite, which has wiped out many commercial and wild populations around the world. 30位澳洲养蜂者被教导,要如何找出称为蟹螨的寄生虫,这种寄生虫已经遍及全球。
- A desert has no settled population. 沙漠没有固定的居民。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。