交配

Unhampered by a standard, they were able to continue their breeding schemes, with occasional outcrosses, and were responsible for producing the multi-purpose dog that is our present-day Black Labrador Retriever.

在没有受到标准阻碍的情况下，他们得以继续带有偶然异系交配的繁殖计划，并且产生了多用途犬种，即我们今天看到的黑色拉布拉多。

Through indoors control feeding and on-the-spot field observation,it's confirmed that Ectropis excellens Butler occurs five generations in one year. It overwinters in the form of pupal right under the tea plant's growing soil.

通过室内编号控制饲养、田间定点、控制观察，明确大鸢尺蠖在湖南长沙一年发生五代，以蛹在茶丛树冠下土内越冬，次年3月上、中旬羽化，交配产卵。

Female adults oviposited eggs inside calyx on Tamarix ramosissima after mating.

成虫性比约为1：1，雌成虫交配后将卵产于多枝柽柳的花萼内侧。

The effect of BPBB on the reproductive behaviors of CBW: The effect of BPBB and its odor on hiding place, ovipositing place, mating rate and eggs number of CBW have been studied in artificial climate box.

对棉铃虫生殖行为的影响在人工气候箱中研究了黑杨萎蔫叶枝及其气味对棉铃虫成虫的隐藏部位、产卵部位及交配率和产卵量等的影响。

Based on the investigation of Propylea japonica reared in laboratory by using Aphis robiniae Macchiati , the hatching, ecdysising behaviors of the larva, the eclosion, hunting, mating and ovipositing behaviors of the adult, the cannibalism behaviors of the larva and the adult were observed and described.

中文摘要：通过以洋槐蚜 Aphis robiniae Macchiati 为食物对龟纹瓢虫 Propylea japonica进行室内饲养和观察，记述了龟纹瓢虫幼虫的孵化、蜕皮行为，成虫的羽化、捕食、交配、产卵行为，并对幼虫成虫的自残行为进行了初步观察。

When they were cultured with KA3(MAT1-1), KA9(MAT1-2) or Z46(MAT1-2),the numbers of strains which can form perithecia are 22,6 and 4, respectively.

研究结果表明：35个双交配型菌株自交都没有形成子囊壳，分别与KA3(MAT1-1)、KA9(MAT1-2)和Z46(MAT1-2)杂交形成子囊壳的菌株数为22，6和4。

It's concerned with fundamental needs such as survival, physical maintenance, hoarding, dominance, preening and mating.

它关心基本需要，例如生存、身体维护、积蓄、统治、打扮和交配。

The genetic analysis was carried out for 8 characters on 9 energy cane parents and their 20 combination crosses with the NCII mating design. The results showed that the inheritance of stalk biomass, brix weight, available stalk numbers and weight per stalk was subject to both additive gene effect and non-additive genes effect, but mainly controlled by non-additive genes. The inheritance of plant height, stalk diameter and brix was subject to both additive gene effect. The broad sense heritability (HB2) of stalk biomass and brix was over 50%, and those of brix weight were 33.7% at the seedling stage 54.4% at its ratooning stage, respectively , which means that the selection would be done better at the early stage in the sugarcane breeding program.

利用遗传交配设计对能源甘蔗9个亲本组配的20个组合、8个性状进行遗传分析，结果表明：地上部鲜重、锤重、丛有效茎数和丛重的遗传既受基因的加性效应也受基因的非加性效应所控制，但以非加性效应为主；株高、茎径和锤度的遗传主要是受基因的加性效应控制，地上部鲜重和锤度实生苗新植和宿根的H_B~2都在50％以上，而锤重的H_B~2分别为33.7％和54.4％，而且锤重和地上部鲜重母本gca方差都大于父本gca方差，说明能源甘蔗育种中母本选择的重要性。

And acquired embryos of Yuyi hairless mice were frozen, reanimated and transplanted, then the effects in different conditions were contrasted.

1、对豫医无毛小鼠21代到29代，分别采用不同的交配方式，统计分析生育力、后代的胎数、产仔数、离乳率等繁殖指标。

Especially large and only member of a colony of naked mole rats to bear offspring sired by only a few males.

身体非常大，一群裸鼹鼠中只有一只，可与仅有的少数几只雄虫交配产子。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。