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Ma Lan can use seminal breed to also can undertake asexuality breeds already, emergence rate of direct seeding seed amounts to 85 % above, undertake with mature Ma Lan transplant breeds dividing individual plant survival rate is very high also.

马兰既可用种子繁殖也可进行无性繁殖,直播种子出苗率达85%以上,用成熟的马兰进行分株移栽繁殖成活率也很高。

Both of sexual and asexual reproduction was observed in Cycas fairylakea population, and the ratio of the sexual reproduction to asexual reproduction was different in different habitats.

仙湖苏铁兼有有性繁殖和无性繁殖,在不同生境条件下,两种繁殖方式的比例不同。

The reproductive output, reproductive efficiency and reproductive index of Humulus scandens increase with the increasement of intensity of fertilizer, but reproductive allocation and reproductive investment are indistinctively influenced by fertilizer treatments.

增加施肥强度可显著提高葎草的繁殖输出、繁殖效率和繁殖指数。

But reproductive allocation and reproductive investment are insignificantly correlated to the size of plant.

施肥促进植株生长和增强生物量积累,进而提高植株的繁殖输出,但繁殖投资和繁殖分配同植株大小无显著相关关系。

Invasive plants reproduce rapidly, either vegetatively or by seed.

入侵的植物繁殖快(不管是营养繁殖或通过种子繁殖)。

The asexual reproductive eggs and larvae were obtained when 50 commercial and bivoltine races induced by hot water. But the rate of asexual developed eggs varied markedly among these races, the range was 11. 99~88. 88 percent. About one-third races, their rates of asexual developed eggs attained 70~80 percent. The rate of asexual developed eggs about hybrid was higher than its parent.

对我国50个二化性现行品种资源进行无性繁殖发生率调查,结果表明各品种都可经诱导获得一定比例的无性繁殖发育卵和幼虫,但品种间存在较大差异,其发生率范围在11.99~88.88%之间,有1/3品种的无性繁殖发生率达到70~80%,而杂交种的无性繁殖发生率明显超过原种的水平。

Seveteen fine biovotine female lines also had been bred out after 5~10 generations selecting directly to the bivoltine genetic resources, which included 8 Chinese female lines, 8 Japanese female lines and 2 hybrid female lines. These female lines could be reproduced easily by asexual reproductive way, their rate of asexual developed eggs were high with only female generations and economic characters were also stability.

采取直接利用无性繁殖性状较优良的二化性现行品种资源构建雌蚕无性繁殖系的方法,经5~10代的无性繁殖继代选择,初步育成了17个雌蚕无性繁殖品系,其中中系品种8个,日系品种7个,杂交种2个。

We investigated the behavior of plateau pika Ochotona curzoniae in populations of different density in 2003, using focal-animal sampling technique during the reproductive season, which included early stage, peak, middle and later stage of reproduction.

在2003年高原鼠兔的繁殖初期、繁殖盛期、繁殖中期和繁殖末期,采用目标动物取样法对其不同种群密度条件下的行为模式进行研究,探讨高原鼠兔的行为变化和种群密度的相互关系。

Thus each individual is an infinite multiplicity, and the whole of Nature is a multiplicity of perfectly individuated multiplicities.

因此,每一个个体都是一个无限繁殖,而整个自然界则是由无数个体繁殖而成的一个繁殖。

The former two species, Anna Marie and City of Haarlem, were employed to conducted experiment on cultivation production and bulbs propagation in order to explore the bulb production and propagation regulation of different grades of bulb.

用安娜玛丽和海姆之城进行了风信子的栽培生产与种球繁殖试验,以探讨不同等级种球生长与繁殖规律;用杜比女士和蓝马甲的鳞茎进行人工挖孔繁殖试验,以探讨人工处理增加风信子鳞茎繁殖系数的可行性。

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