查询词典 female parent

Introduced: mainly Simmental, Charolais cattle, Limousin beef cattle breeding, such as male parent to do to Luxi cattle to cross the female parent to do to improve.

改良肉牛介绍：主要有西门塔尔牛、夏洛来牛、利木赞牛等良种肉牛做父本，以鲁西黄牛做母本进行杂交改良。

When the parent of high photosynthetic production rate is used as female parent, the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8 %, otherwise, used as male parent, by 0.9%.

用高光合生产率亲本作母本时，F_1光合生产率优势超亲8.8%，反交F_1光合生产率优势超亲0.9

By determing the photosynthetic production rates in the 46 hybrids and 21 parental inbred lines, the results show that the dominancy of average photosynthetic production rate in F1 is 16.4 %; when the parent of high photosynthetic production rate is used as female parent, the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8 %, otherwise, used as male parent, by 0.9%.

通过对46个杂种及21亲本自交系光合生产率的测定结果表明：F_1平均光合生产率优势为16.4%。用高光合生产率亲本作母本时，F_1光合生产率优势超亲8.8%，反交F_1光合生产率优势超亲0.9%；母本光合生产率遗传力，大于父本光合生产率遗传力11倍。低光合生产率亲本的光合生产率遗传力大于高光合生产率亲本光合生产率的遗传力1.6倍。

Those DNA bands expressed in female parent but not in male parent also expressed in gynogenesis filial; DNA bands expressed in male parent but not in female parent didn抰 express in gynonensis, while normally expressed in dcploid control fish.

证明牙鲫雌核发育子代的遗传物质来自母本，雌核发育诱导使用的精子经过紫外线灭活后，遗传物质己被破坏，其携带的遗传信息没有传给子代，在DNA水平证明了雌核发育诱导方法和结果的可靠性。

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。

Changqingwang No.5 is a new early maturing, high yield and disease resistant summer squash F1 hybrid bred by crossing a dark green inbred line A-101, derived from hybrid of France Cuilv and Korea Hanchengzaoshu, as female parent, and white inbred line 03-1, derived from foreign hybrid, as male parent. The plant is strong at late development stage.

以法国翠绿和韩国汉城早熟杂交，经多代自交纯合选育的深绿皮自交系（代号A-101）为母本，国外杂交种多代自交分离选出的稳定白皮自交系（代号03-1）为父本，育成了早熟丰产抗病的西葫芦杂交种长青王5号。

Parental lines were: female parent 3-2-2 from China, thin-skinned melon, monoecious; male parent TopMark, from USA, thick-skinned and netted melon, andromonoecious; tested parent WI998, from USA, netted melon, gynoecious.

本试验选择亲本材料分别为：母本3-2-2，来自中国，薄皮甜瓜，雌雄异花同株材料；父本TopMark，来源美国，厚皮网纹甜瓜，雄全同株材料；检验亲本：WI998，来源美国，网纹甜瓜，全雌株材料。

Twenty-four random primers were used to analyze the genomes of three descendant strains with steady hereditable variation produced form domesticated silkworm by artificial insemination with sperms of eri silkworm. The results show that in the RAPD patterns there are many amplified bands called" parental bands"which are similar to those of the female parent. At the same time, there appears varied amount of amplified bands called "variant bands" that are different from those of the female parent. The variant ...

采用24种随机引物，对以蓖麻蚕精子进行人工授精得到的家蚕后代中的3个稳定变异品系及其亲本的基因组进行了RAPD检测，结果显示，在变异品系的RAPD图谱中，不仅存在大量与母本相同的&亲本带&，同时还出现了不同数量与母本不同的&变异带&，包括&非亲本带&、&缺失带&及个别仅与父本相同的&目的带&，从分子水平上揭示了变异品系存在着明显的&偏母性&与&变异性&特点。

For example, in 1996 in Canada, there were 945,000 female-headed single-parent families, representing 18 percent of all families, almost double the figure of 1971, when ten percent of families with children were headed by a single, female parent.

当时，她希望有一个特别的日子，来向她的父亲WilliamSmart先生表达敬意。WilliamSmart先生是一个参加过南北战争的老兵。他的妻子，也就是JohnB.Dodd夫人的母亲，在生第六个孩子时不幸去世。

By removed ovary culture after positive and negative hybridization, produced interspecific hybridization, and have improved the hybrid seed through removed ovary culture and induced to shoot by culture medium MS, and produced hybrid F1, the plant of Brassica junce×B.pekinesis, the advantage characteristic of hybrid plant is similar to female nature;By cytology authenticating, chromosome number of F1 young flower bud cell (2n=28), it is the sum of monoploid chromosome number of female parent Brassica junce(2n=36) and male parent B.pekinesis(2n=20); The hybridization to Brassica junce×B.pekinesis, and embryonic bud come from removed ovary culture, and it found another form of plant embryo saving.

以芸薹属植物芥菜型油菜和白菜为研究对象，对其进行常规正反杂交后子房的离体培养，通过离体子房培养获得的杂种种子经MS培养基诱导成苗，获得了芥菜型油菜与白菜的杂种F1代植株，表现出杂种优势；通过细胞学的方法，鉴定了杂种F1幼蕾体的细胞染色体数为2n=28，为母本芥菜型油菜（2n=36）和父本白菜（2n=20）的单倍体染色体数之和；芥菜型油菜与白菜常规杂交后，经离体子房培养获得了&胚性芽&，确立了植物胚挽救的另一种形式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐