查询词典 biotype

The results showed that the invasive B biotype has the capacity to displace the non-B biotype in a short period of time.

这说明B型烟粉虱具有在短期内竞争取代浙江非B型烟粉虱的能力。

The genetic structure of biotype B and biotype Q was analyzed using random amplifIed polymorphic DNA markers here.

本文利用RAPD分子标记对烟粉虱B型和Q型不同地理种群的遗传结构进行了分析。

The effects of genetic purifying by continuous sibling-cross on the damaging character of biotype 1 and biotype 2 of Brown Planthopper were studied in this paper.

采用标准苗鉴法，系统考察了褐飞虱生物型1和生物型2的致害特性在连续五代家系纯化过程中的变化状况。

What different between the invasive biotype and indigenous biotype?

入侵型和本地型存在哪些差异？

The effects of genetic purifying by continuous sibling-cross on damaging character, enzymatic activity, and RAPD of biotype 1 and biotype 2 of BPH were studied.

3系统地测定了生物型1和生物型2的致害性在连续5代家系纯化过程中的变化情况。

For BPH biotype Bangladesh, the interaction between seedling stage and nitrogen fertilizer was significant, and for BPH biotypeⅡ, the interaction between two factors was not significant.

但苗龄和施氮量间对褐飞虱孟加拉型的抗性存在明显的互作效应，而对生物型Ⅱ的抗性互作效应不显著。

Even when the competition started with 87% of non-B biotype and 13% of B biotype in numbers, the non-B biotype was completely displaced in 225 days.

在棉花上，即使以非B型占87%、B型占13%开始共存竞争，经过225d后，非B型也完全被B型替代。

However,the number of events and frequency of copulation between the biotype B and ZHJ2 decreased significantly compared with those between females and males of a given biotype being placed in one arena, demonstrating a degree of pre-mating partial reproductive isolation between these two biotypes.Although some of the adults of the biotype B and ZHJ2 copulated with each other,mated females produced only male progeny,demonstrating a post-mating complete isolation in reproduction between the two biotypes in cases where copulation has happened.

4B型烟粉虱与ZHJ2型烟粉虱在棉花上的竞争取代过程当B型烟粉虱与ZHJ2型烟粉虱以3：20的比例在棉花上开始竞争，在未喷施吡虫啉乳油的情况下，B型经过6代完全取代了ZHJ2型，并伴随着B型雌虫比例的上升和ZHJ2型雌虫比例的下降；在喷施吡虫啉乳油的情况下，B型取代速度加快，经过5代完全取代了ZHJ2型，也伴随着B型雌虫比例的上升和ZHJ2型雌虫比例的下降；B型单一种群中，雌虫比例稳定在55%～60%；ZHJ2型单一种群中，雌虫比例稳定在50%左右。

The B males interfered more successfully with courtships initiated by rival males of another biotype than by males of the same biotype,while indigenous males interfered more successfully with courtships initiated by males of the same biotype than by rival males of the B biotype.

然而，ZHJ1型雄虫和AN型雄虫每次与雌虫交配后就离开，未表现有交配后保卫行为，这便有利于其它雄虫对交配过的雌虫进行求偶。

The B biotype had higher sexual activity than the two indigenous biotypes in that B females were more receptive to males,and B males more frequently and efficiently courted female of the B biotype or another biotype.Besides,B males interfered more intensely with courtships initiated by rival males of another biotype than did indigenous biotypes.

而且，B型雄虫干扰ZHJ1型雄虫和AN型雄虫求偶比B型雄虫干扰另一B型雄虫的更成功，而对于ZHJ1型雄虫却恰恰相反。B型雄虫具有交配后保卫行为，可阻止其它雄虫的求偶，并且对ZHJ1型雄虫和AN型雄虫求偶的阻止比对B型雄虫求偶的阻止更有效。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。