查询词典 plant breeding

Function: Plant distillate provides various element that oily skin needs, calm appeases, returnsred, fighting against a bacterium breeding, promote the cell's regeneration.

功 能：植物精华提供油性皮肤需求的多种元素，镇静安抚，退红，抵抗细菌生殖，促进细胞再生。

Function: Plant distillate provides various element that oily skin needs, calm appeases, returnsred, fighting against a bacterium breeding, promote the cell's regeneration.

功 能：植物精华提供油性皮肤需求的多种元素，镇静抚慰，退红，抵抗细菌生殖，增进细胞再生。

Using plant AT-1found by kenaf breeding research group of institute of bast fiber crops Chinese academy of agricultural sciences in Sanya of Hainan province were used as female parent in crossing with 15-4, 04K1 and then backcrossed four times with male parent in order to select two high sterile male sterility.

利用中国农业科学院麻类研究所红麻育种课题组在海南三亚发现的红麻不育株AT-1做母本分别与15-4，04K1做杂交，再用父本回交4次，选育出2个高度不育的不育系。

Guangdong Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642,ChinaA novel population consisted of 86 single segment substitution lines were developed from advanced backcrosses between the recipient, Huajingxian 74 and six donors by microsatellite marker-assisted selection.

以水稻品种华粳籼74为受体，以6个水稻品种为供体，通过高代回交和微卫星标记辅助选择相结合的方法，建立了水稻的一个单片段代换系群体。

The other approach is to be elected monoclonal were threshing, planting, respectively, and lines of future generations to choose, compare, until the election of new varieties, said the plant selection, commonly used in self-pollinating crops or often cross-pollinated crop breeding.

另一做法是将当选单株分别脱粒，分别种植，然后对后代株系进行选择、比较，直至选出新品种，称单株选择，常用于自花授粉作物或常异花授粉作物育种。

ABSTRACT It is because that the excellent acceptors for maize transgenic engineering are insufficient in our country, especially in the southwest mountain areas of china and hereditary variation regularity for the two characters such as efficiency of embryonic callus induction and number of regenerating plant (these two characters were abbreviated to the nduction efficiency and number of regenerating in the following of the paper, respectively), which hint the maize culturing capacity, is not very clear. Therefore, aiming at picking out superior acceptors, we had made systematic researches on the two characters with combing traditional quantitative-character genetic analyzing methods such as single-factor genetic mating design, diallel crossing genetic design, genetic effect analyzing method and the modern molecular locating method such as QTLs'. The main results are followed.(1) 50 superior inbred lines and about 30 crosses in our country, especially in the southwest of China were used for identifying and selecting the superior genotypes in the above two investigated characters under the same culturing condition in 2000 and 2001. There was very significant difference among the genotypes in the both characters. But the two characters were not certainly related. Some genotypes such as 18-599 and 18-599 were very good in them. For some ones such as zong 31, induction was higher than 18-599 and 18-599 in the efficiency, but it was only 1/3 to the later in regenerating number. In some genotypes such as S37, R08, R15, P138, A318, induction efficiency was just about 3% and scarcely any regenerating plants were got. On the whole, hybrids acted better than inbreeds in the both characters.(2) Two kind of inbreeds were selected as parents of the Griffing's method 1. 18-599 and 18-599 and the inbred line zong 31 are one kind because they are not only superior in the characters of maize cross breeding, such as CA, resistance to disease and the important agricultural characters, but also excellent in transformation characters as the induction and regeneration.

针对我国、特别是西南山地所需玉米转基因工程育种优良受体极为匮乏和反应玉米幼胚培养能力的2个主要性状，即玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数的遗传变异规律十分不清楚的实际情况，本研究从筛选玉米转基因工程所需要的优良受体入手，采用单因素遗传交配设计、双列杂交遗传交配设计、世代基因效应等传统数量性状分析方法，以及现代分子标记定位主效QTL分析方法，对玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个性状进行了较为系统的分析研究，取得以下主要研究结果：(1)于2000年和2001年通过对我国、特别是西南地区近50份优良自交系和近30个杂交组合，在相同培养条件下，对幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个幼胚培养能力性状进行了筛选与鉴定，发现玉米不同基因型具有完全不同的幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数，但幼胚培养胚性愈伤组织诱导率与胚性愈伤组织绿苗发生数并不具有必然的相关关系，有的基因型，如自交系18-599和18-599在胚性愈伤组织诱导率和愈伤组织绿苗发生数等2个性状都表现相当优异；有的基因型，如自交系综31，仅幼胚培养胚性愈伤组织诱导率性状表现高于19-599和18-599，但在胚性愈伤组织绿苗发生数这一性状则与它们有相当大的差距，仅为19-599和18-599的1/3左右；有的基因型，如S37、R08、R15、P138、A318等玉米自交系不仅幼胚培养胚性愈伤组织诱导率很低，平均仅在3％左右，而且胚性愈伤组织绿苗发生数表现也很差，基本上没有分化成苗。

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。

With chicken farming maggot, maggot breeding earthworm manure, earthworm dung plant grass, fly maggots, earthworms, grass used to raise chickens, produced by environmentally friendly eco green chicken meat is not only more delicious, and nutrients become more abundant, rich required by the human body with various vitamins, protein, amino acid, lysine, methionine and other nutrients, Chicken Egg yellow up to 11 degrees more than ordinary for the 5-6 Yellow Egg, egg white more thick, mouthfeel more sun are well received by consumers.

用鸡粪养殖蝇蛆，蝇蛆粪养殖蚯蚓，蚯蚓粪种植牧草，蝇蛆、蚯蚓、牧草用来养鸡，生产出来的绿色无污染生态土鸡不仅肉质更加鲜美，而且营养成份更加丰富，富含人体所需要的各种维生素、蛋白质、氨基酸、赖氨酸、蛋氨酸等多种营养成份，土鸡蛋蛋黄色度达11以上，而普通蛋蛋黄为5-6，蛋清更加浓稠，口感更加淳正，深受消费者的欢迎。

Advances of researches on resources of rural varieties, fine colones resources, selection of breeding,breed seedling introduction, plant disesses and insect pests of Sampium sebiferum are elucidated in this paper which provides scientific veferences for the development of biodiesel industry.

就乌桕的农家品种资源，优良无性系资源，良种选育，育苗，引种以及病虫害前期研究进展作了阐述，为发展乌桕生物柴油产业提供参考。

Kay Gray (Plant patent 4943), released from a private breeding program in Wisconsin operated by Elmer Swenson, is listed as one of the hardiest grapes grown in the upper Midwest.

凯灰色 （植物专利4943），从威斯康星州的一个私人育种程序中埃尔默斯文森经营获释，被列为在中西部葡萄种植的顽强之一。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。