It was showed that high mortalities in the stages of egg(13 5%), 1st instar larvae(18 2%)and pupae(19 0%) were the main factors influencing the growth of the experimental population.
结果表明，卵期、1龄幼虫期、蛹期的死亡率较大，分别为13 5 %、18 2 %和19 0 % ，是影响种群数量增长的主要因子。
However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.
然而，尽管当地铁浓度立即提高，在一个这样的区域实验释放铁化合物却没有产生大量的浮游生物。
09052823】 Thank parasites for making some of our immune proteins into the inflammatory defenders they are today, according to a population genetics study in the Journal of Experimental Medicine.
最近《实验医学杂志》上一篇关于种群遗传学的论文提出一个观点：人体免疫蛋白之所以有今天这样的疾病抵御能力，还得归功于各种病菌。
Experimental results show that VPGA using logistic model population size is more efficient and requires less computation time than other modified GAs which only improve the GA operations.
我们的实验结果表明使用离散逻辑斯蒂模型来控制种群规模的VPGA能够比其他从微观算子上改进的遗传算法更加高效省时。
When the induction conditions were improved, people began to focus on whether the single phenotypic cell population as experimental objects can improve the induction efficiency or not.
在改进诱导条件的同时人们开始关注单一表型的细胞群作为实验对象是否能有效地提高诱导效率。
According to the basic principles of population genetics and experimental evidence, the Virulence Wave Law of pesticides was advanced in this paper.
本文根据种群遗传学的基本原理和试验证据提出了农药的毒力波动规律。
The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system.
本文以蚕豆和蚕豆蚜构成的人工种间关系系统为对象，研究了蚜虫种群动态和植物生理变化的关系。
The experimental result shows that the maximum population increase index for the second generation is 66. 52, and the minimum population increase index for the fourth generation is 14.60.
结果表明：前齿肖蛸第二代的种群增长指数最大，达66.52；第四代种群增长指数最小，为14.60。
The experimental results also show that particle population of various grain size ranges has different effects on turbidity.
试验还发现，不同粒径范围的颗粒对浊度的影响程度不同。
Rice is an experimental model for the cereal crops research and an agriculturally important plant, providing food for more than half of the world population.
水稻是谷类作物研究的实验模式种和有着重要农艺性状的植物，它为全世界一半以上的人口提供食物。
Rice is an experimental model for the cereal crops research and an agriculturally important plant, providing food for more than half of the world population.
水稻是谷类作物研究的实验模式种和有着重要农艺性状的植物，它为全世界一半以上的人口提供食物。
应用推荐