龄

Totally 75 healthy 4-week-old male Sprague-Dawley rats were randomly divided into 25 groups. Doses of lead acetate were different in terms of groups respectively.

选取75只健康的4周龄雄性Sprague-Dawley大鼠，随机分为25组，各组染毒剂量均不相同。

The mechanism of fertility conversion of temperature sensitive genic male sterile line in maize was studied by the methods of sowing with stages and investigating leafage.

利用分期播种和田间跟踪调查叶龄的方法，以琼 6Qms为材料研究了玉米温敏型核雄性不育的育性转换机制，结果表明，日最高温度是育性转换的主要因子，表现出低温可育，高温不育，育性转换的温度区间为 2 7～ 31℃；同时日照长度对育性转换也有一定的影响，表现为长日照不育，短日照可育。

The ecological mechanism of fertility transition for a thermo-sensitive genic male sterile line,Qiong-68 ms,was evaluated by means of sowing by stages,investigating leafage and detecting the fertility of pollen.

采用分期播种、叶龄调查以及花粉镜检等方法，对玉米温敏核雄性不育系琼68 ms 育性转换的生态机制进行了研究，发现琼68 ms的育性变化主要受温度影响，日最高温度是其育性转换的主要因素，表现为高温不育，低温可育，育性转换的温度范围为30~33℃，雄穗发育的小穗分化期是对温度敏感的关键时期。

The conversion boundary of self-incompatibility was researched by sowing by stage. Sunshine of day and temperature was studied critically by investigating leafage and researching traits indoors. The results showed that the daily minimum temperature was the principal factor of affinity conversion and the affinity conversion boundary was 16.5~18.1℃.HE97 was primarily regard as self-incompatible line in this research. The method was by inbreeding and sib HE97, Half the silk of HE97 and Zheng58. Inbreeding and cross have been done simultaneously. The extending condition of pollen tube was observed by dying the silk after pollinating 4 hours. The individuals with pollen tube were observed having seeds, while the individuals without pollen tube were observed having few seeds or no seeds. So this study regard HE97 as sporophytic self-incompatibility .The planting ration of female parent HE97 and male parent 87-1 was 4:1.The nature cross-pollination was studied by the theory of endosperm xenity, the study show that the setting percentage of HE97 was 625%, in which the seed in self was 70% and the seed in hybrid was 30%. This was consistent with the study of silk anatomy structure, then come to the same conclusion: compatible pollen germination and fertilization can stimulate the self-incompatible pollen germination and fertilization in the same corn cob.

通过分期播种，进行了光温敏自交不亲和材料HE97亲和性转换区间的研究，依据田间跟踪调查叶龄及室内考种研究了HE97亲和性转换区间的光温临界值，结果表明：1日最低温度是影响HE97自交不亲和性的主要原因，亲和性转换区间在16.5℃～18.1℃之间。2通过HE97自交和姊妹交以及将HE97与郑58作为双亲，各自的花丝一分为二，分别正反交，授粉后4个小时分别取其花丝进行固定、染色，观察花粉管的伸长情况，根据结实率与花粉管伸长的对应关系，结果发现观察到花粉管的对应植株收获到了种子，而没有观察到花粉管的对应植株结实率极低或没有结实，本研究把HE97初步划为孢子体自交不亲和类型。3以HE97为母本，87-1为父本，按4母：1父行比，通过花粉直感效应研究天然异交率，结果母本HE97结实良好(62%)，其中自交粒占70%，异交粒占30%，结合花丝切片观察表明，亲和花粉的萌发及受精会导致落在同一果穗柱头上不亲和花粉的萌发不再受抑制。

Taking mapping QTL that affect leaf age growth trajectories in rice of a DH population as an example, we used 3 biological meaningful submodels and 2 orders Legendre polynomial to model the mean vector of QTL genotypes and 11 stationary and non-stationary models to fit residual covariance matrix.

以水稻一个DH群体的叶龄性状为例，我们分别用3个具有生物学意义的子模型和2阶Legendre多项式去拟合QTL基因型的均方向量，用13个平稳和非平稳模型去描述剩余协方差的变化。

20 healthy leghorn chickens of 1.year old were divided randomly into 4 group.

选用 1 岁龄健康leghorn鸡 20 只，随机分四组。

Study was made on variety of blood biochemical parameters of White leghorn ben of 260 days of age.under different lighting treatments.

应用生物化学分析方法，试验研究了260日龄白来航产蛋鸡在不同光照环境中血液生化指标的变化。

July 4 am,"the Shenzhen Special Economic Zone of the Chinese Medicine Ordinance" special briefing held in Beijing successful, will participate in this special briefing by the NPC Education, Science and Health Committee who Songsen director of the State Council Legislative Affairs Office Lee Wu Director of the Ministry of Health policies and regulations Secretary HE Chang-ling, deputy inspectors, the State Bureau of Chinese medicine pharmacology and Wu Gang, deputy director of State Food and Drug Administration Division, and other relevant policies and regulations department or bureau level leaders and experts and the Shenzhen Municipal People's Congress, the Office of Legislative Affairs, Health Bureau of the leaders of relevant departments and Chinese medicine key members of the legislative drafting group.

7月4日上午，《深圳经济特区中医药条例》专题汇报会在北京成功召开，参加此次专题汇报会的有全国人大教科文卫委员会人卫体室主任宋森、国务院法制办李敬鹉处长、卫生部政策法规司何昌龄副巡视员、国家中医药理局副局长吴刚以及国家食品药品监督管理局政策法规司等有关司局级领导和专家以及深圳市人大、法制办、卫生局的有关部门领导和中医药立法起草小组主要成员。

In order to establish an effective regeneration system of Lespedeza formosa, the effects of 6-BA,2,4-D,NAA and seedling age on adventitious buds regeneration,proliferation and rooting of L.formosa were studied.

以美丽胡枝子为材料，研究了6--BA、2，4--D、NAA和苗龄等因素对其子叶节再生、节段扩繁和试管苗生根的影响，目的是要建立其高效再生体系。

In order to discuss the interaction of viremia and antibody caused by reticuloendotheliosis and avian leucosis virus of subgroup J, REV, ALV-J and REV+ALV-J were injected to SPF chicken at 2 d separately, then tested the viremia and antibody dynamically for 7 weeks. The results indicated that compared with single infection, the dynamic viremia level of REV and ALV-J wasn't obviously different when coinfected.

为了研究禽网状内皮增生病病毒、禽J亚群白血病病毒共感染时对彼此病毒血症及抗体反应的影响，2日龄SPF鸡分别接种REV、ALV-J或同时2种病毒造成共感染，对各感染组7周内的病毒血症及抗体反应进行动态检测。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。