该物种的繁殖力没有明显下降。
显然,仅依靠种子生存或传播的植物物种更容易受到植物繁殖力下降的影响。
Plant species dependent solely on seeds for survival or dispersal are obviously more vulnerable to any decrease in plant fecundity that occurs.
喷洒杀虫剂导致的植物繁殖力下降是否真的会导致开花植物物种总数的下降,这个问题仍然没有答案。
The question of whether the decrease in plant fecundity caused by the spraying of pesticides actually causes a decline in the overall population of flowering plant species still remains unanswered.
猎豹在圈养的情况下繁殖力很差。
袋鼠雌袋鼠在植物繁殖力充足的时候生育后代是有利的。
It is advantageous for a kangaroo female to produce young at a time when plant productivity is sufficient to support her offspring.
游荡肉蝇是一种健康害虫,它的身体小,繁殖力强。
Sarcophaga peregrina is a pest of health, with a small body and a great power in reproduction.
对黄花泡乌鳢个体繁殖力进行了研究。
The individual fertility of Ophiocephalus argus were studied in Huanghua Lake.
实验探讨了重复超排对育成牛繁殖力的影响。
The objective of the experiment was to determine the effects of repeated superovulation on reproductive of dairy Heifer.
这些因素都可影响后代成活蚊的种群繁殖力。
All these factors would undoubtedly have an influence on the reproduction capacity of the survival offsprings of the mosquito population.
繁殖力,生殖力尤指大量产生后代的能力;生殖力。
The capacity for producing offspring, especially in abundance; productiveness.
提高山羊的繁殖力是提高肉羊生产效率的途径之一。
Improving the prolificacy of goat is one of way to increase the efficiency of the meat-goat industry.
在低剂量农药环境下多异瓢虫的繁殖力有一定的降低。
The fecundity of A. variegate was lower under applying low dose pesticide.
结果表明:两组蜂群繁殖力及分蜂性,都差异不显著。
The result showed that there was no significant difference in the colony reproductive capacity and swarming between the two groups.
实行仔猪早期断奶,是提高母猪繁殖力的一项有效措施。
Implement early weaning piglets, is to enhance the sow an effective measure of fertility.
它严重影响奶牛的繁殖力,给奶牛业造成严重的经济损失。
It seriously affected the productivity of cow, and cause enormous economic losses to the cow rearing industry.
他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应。
He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.
生存竞争是生物过剩的繁殖力和资源的有限性对立的必然结果。
Existence of competition is the excess of fecundity and the limited resources of the confrontation between the inevitable result.
野鲤的繁殖力很高,因此在黑龙江水系中保持较大的群体数量。
As their higher reproductive capacity, the wild carp keeps a big population in Heilongjiang waters.
简述了家畜繁殖力的含义,探讨了影响家畜繁殖力的主要因素。
This paper expounds the connotation of fecundity of cattle, and probes into the main factors influencing the fecundity of cattle.
更为糟糕的是,身处危险中的鲨鱼生长非常缓慢,而且繁殖力低下。
What's more, the already at-risk sharks are extremely slow growing and reproduce rarely.
本文探讨了连续传代培养中营养对昆虫病原线虫繁殖力及产量的影响。
The effects of nutrition on fecundity and yield of nematode in continued culture were evaluated.
结果表明,处理组大仓鼠的繁殖力明显受到了不育剂EP-1的抑制。
The results indicated that the reproduction of hamsters in enclosures with treatment of EP-1 baits was obviously inhibited.
高繁殖力和高生长率的物种在竞争中具有优势,确保其能在消落带生存。
The plant species with high propagation capability and growth rate had the advantage in competition, which ensured their survival in the water-level fluctuation zone.
花器解剖和授粉试验表明,大邑梅有较高的繁殖力,保持着野生种的特性。
Flower anatomy and pollination test showed Armeniaca mume in Da 'yi had a higher reproductive capacity and kept some characters of the wild species.
③在苏薯9号和宁薯9-9上,各线虫群体致病力与线虫繁殖力呈正相关;
There were positive relationships between fecundity and pathogenicity on the Sushu No. 9 and Ningshu 9-9.
对采自舟山近海凤鲚样品的个体繁殖力及其与生长指标的关系进行研究和分析。
This article studies and analyzes the relationship between individual fecundity and growth index of Coilia mystus in the coastal waters of Zhoushan.
卵黄发生直接影响蜱类的繁殖力,一直是蜱类生理学一个十分活跃的研究领域。
The knowledge of reproductive physiology in ticks is very limited as compared to insects.
生命周期、世代时间、繁殖力和产卵量是决定这两种桡足类垂直移动的主要因素。
Life cycle, generation time, fecundity, and egg production quantity are the main factors to determine these two species' vertical migration.
生命周期、世代时间、繁殖力和产卵量是决定这两种桡足类垂直移动的主要因素。
Life cycle, generation time, fecundity, and egg production quantity are the main factors to determine these two species' vertical migration.
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