查询词典 fertility

Correlation analyses on the contents and ratios of endogenous hormones with selfing fertilities showed that selfing fertility was not determined only by one single hormone level, but partially affected by the joint action or balance of several hormones in Nongken58S original and untransformed regenerant controls under long-day. Our results did not support different already proposed hypotheses on one single hormone action in fertility expression of PSGMS rice.

1通过对因受环境低温影响而在长日条件下不育性部分逆转的原始材料和组培再生后代材料的自交结实率与内源激素水平及比值相关性分析表明，农垦58S育性转换并非取决于某种单一激素水平的改变，而可能与多种激素的共同作用和平衡关系有关，从而说明&众说纷纭&的单一激素作用的假说难以成立。

Of the T〓 CaMVBT transgenic plants, the normally-growing plants showed two kinds of pollen fertility and seed-setting ratio under long-day condition. 62. 9% of which showed poorer pollen fertility, smaller, thinner seeds than those of untransformed regenerant control and that seeds were nonviable.

2自然启动子调控的rolB转基因农垦58S中，少数T〓代单株表现植株较矮小、茎杆细、叶片有卷曲或皱缩、生长势减弱、可育条件下败育等与CaMVBT转化的T〓代部分单株相似的表型。

In addition,the proportion of Typical Abortive pollen and Normal pollen acted as the fertility indexs and typical sterile group or normal fertile group was classified in segregative population according to the pollen fertility of parent or F1 hybrid.

在育性指标的划分上，本研究确定以亲本不育系及与恢复系配制的杂种F_1的花粉育性作为划分典型不育株和正常结实株的标准。

Study on 6 soil enzyme activities and 7 siol fertility factors of 12 different planting modes,analyse the dates with the correlation analysis and the canonical correalation analysis,In order to reveal the relations between the soil enzyme activities and soil fertilities in the low hill lands along Yantze River , The result of the correlation analysis showed that they had a great relation between the soil enzyme activities and siol fertility factors.

对12种不同种植模式的6个土壤酶活性和7个土壤肥力因子进行测定，运用相关分析和典型相关分析方法对数据进行分析，以期阐明沿江丘陵地区土壤酶活性与土壤肥力因子的关系。相关分析的结果表明土壤酶活性与土壤肥力因子密切相关，多数呈极显著正相关。

There isn,t significant decrease in the siol fertility quality of the farmland planting 10th transgenic resistant-pest cotton. The effects of conventional cotton and transgenic resistant-pest cotton at the different periods of growth on some soil fertility indexes were investigated.

在蚯蚓生长的基质养分含量(有机质、氮磷钾全量和有效态含量)方面，与常规棉相比，转基因抗虫棉显著降低了基质速效钾含量，但对其他养分含量没有显著的提高或降低。

Each male ratwas paired with 2 female rats in proestrus when administration terminated. Femalerats were examined the next morning for the presence of sperm in vaginal smears andunderwent a cesarean section on day 13 of gestation. Then the reproductive indiceswere calculated as follows: copulation index, pregnancy index, and fertility index,which can evaluate male fertility directly. The sperm motility and morphology wereevaluated by computer-assisted sperm analysis, moreover, the caudaepididymal sperm ultramicrostructure were analyzed by transmission electronmicroscope, which can evaluate the influence on sperm maturation bydutasteride ; sperm survival rate was assessed by SYBR-14 and propidium iodidefluorescent staining; serumal dihydrotestosterone and testosterone of ratswere detected by enzyme-labeled immunoassay, which can evaluate the effecton androgenic levels; the weights of testes and epididymides, were determined byprecise electronic balance; histological examination of above tissues were evaluatedby HE staining and TEM, which can evaluate treatment on histology of reproductiveorgans by dutasteride.

给药结束后雄鼠与处于动情前期的雌鼠按2：1合笼，计算雌鼠的交配指数、受孕指数和生育指数，直接评价雄鼠生育力；采用计算机辅助精子分析系统分析大鼠附睾精子活力和形态，在此基础上合并使用透射电镜技术对各组附睾尾部精子进行透射电镜分析，评价度他雄胺对大鼠精子成熟的影响；采用SYBR-14和propidium iodide双重荧光染色计算精子存活率；采用Elisa法测定大鼠睾酮(testosterone， T)和双氢睾酮(dihydrotestosterone， DHT)血清浓度，评价度他雄胺对雄鼠雄激素水平的影响；采用精密电子天平对各组睾丸、附睾、前列腺和精囊进行称重，评价度他雄胺对大鼠生殖器官重量的影响；采用HE染色法对各组睾丸和附睾进行组织学分析，同时采用透射电镜技术对附睾上皮细胞超微结构进行分析，评价度他雄胺对大鼠主要生殖器官组织学的影响。

The main findings were as follows: 1.the studied on the research area soil fertility factor and the quality of material had carried on the traditional statistical analysis,compared with the nation second general detailed soil surveys nutrient grading standards result indicated that the sampling area main fertility factor density concentrated much in medium and lacks level;The AP content was lower,the type area soil was more barren.

主要研究结果如下： 1。对研究样区土壤肥力因素和质地进行了传统统计分析，并与全国第二次土壤普查的养分分级标准比较结果表明，采样区主要肥力因素量值多集中在中等及较缺水平；速效磷含量更低，样区土壤较为贫瘠。

The present study has investigated biological effects of arsenic on clay pan yellow cinnamon soil, red soils (with high fertility and low fertility) and paddy soil.

通过室内培养及室外盆栽实验，研究了砷在粘盘黄褐土、红壤、水稻土上的生物学效应。

At the same time, she also pointed out that the fertility of marriage for the maintenance of a certain degree of continuity, if the husband and wife and one child, and they left the sub-fertility, this time, people's feelings and demand on the higher, Then the couple will make do in the past the kind of mentality will change, we would pay more attention to the marriage settlement of the conflict.

同时，她也指出，生育对于婚姻的维持起到一定的延续作用，而如果夫妻只生一个孩子，就把性和生育分离开了，这个时候，人们对情感和性的要求就更高了，那么夫妻双方过去那种将就凑合的心态也会改变，会更加注重解决婚姻中的矛盾。

Under four kinds of different temperature of 20 21,23 25,pollen fertility and rate of selfed seed setting of Dl 8 and D23 are increased a little,their fertility altered.

3水稻光温敏核不育系D18和D23经过幼穗分化不同时期的低温处理，花粉育性和自交结实率有一定的提高，育性得到了转换。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。