繁殖

The aim of this study was to analyse the genetic diversity by 1SSR marker and morphological traits within population of 20 Buffalo grass (Büchloe dactyloides) accessions that selected from 102 individuals.

从野牛草Büchlie dactyloides种子播种繁殖的102林单株中筛选20株表型有一定差异的单株作为研究对象，利用ISSR分子标记和表型性状研究野牛草群体内的多样性。

Scale cutting method combined with different growth medias was used to evaluate the effect of slice number per bulb, bulb scale development stage, water content and cutting time on the proliferation ability of the bulblet formation with 10 cultivars from domestic and abroad.

以国内外10个朱顶红品种为材料，研究了不同品种、鳞茎切块数量、鳞茎年龄、基质种类、基质含水量、切块时间等因素对朱顶红繁殖能力的影响。

There are significant differences in the behavior of different sex of Cabot's tragopan and Satyr tragopan.

笼养下的黄腹角雉和红胸角雉繁殖期两性行为具有显著差异。

Significant difference was found in semen product of Cabot's tragopan in different age, so was the ones in the...

不同年龄黄腹角雉的平均产精量有显著差异，同一年龄的个体在繁殖的不同时期，射精量亦存在较大变化。

Based on present work of genetic algorithms, the arising process of incest and premature convergence is discussed. The operating efficiency of genetic algorithms is analyzed from different view of points, and the conclusion is drawn from the analysis that there exists a lot of caducous operation during the evolution in the case of premature convergence.

在遗传算法现有研究成果的基础上，讨论了近亲繁殖和早熟收敛的产生过程，并从不同角度对遗传算法的操作效率进行了分析，得出在早熟收敛的情况下遗传操作存在大量无效操作的结论； 3。

With the object of bettering the efficiency of the crossover operator of genetic algorithms, an improved crossover strategy is proposed. The genetic algorithm with this strategy is capable of preventing incest, caducous crossover and, to some extent, premature convergence.

从提高遗传算法交换操作效率的角度出发，提出一种改进交换策略；采用该交换策略的遗传算法可以防止近亲繁殖和失效交换的出现，在一定程度上避免早熟收敛的发生。

Weather ignore cold heat up suddenly, suddenly shade suddenly fine, fantasticality, because this is easy have a recurrence of an old illness, add climate calefacient, easy breed of bacterium, virus, make human body causes disease.

天气忽冷忽热，乍阴乍晴，变化无常，因此容易旧病复发，加上气候变暖，细菌、病毒易繁殖，使人体致病。

At the CBSG/CAMP meeting in Madagascar last May, the status of this species was evaluated and judged to be critically endangered.

对于如何发展更佳的照顾计划及繁殖后代，有更深入研究探讨的需要，尤其是针对这种稀少和体积较小的物种。

I can't b reed in captivity!

我不能在被陷害的情况下繁殖！

I can't breed in captivity!

我不能在被陷害的情况下繁殖！

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。