選種和育種 的英文怎麼說
中文拼音 [xuǎnzhǒnghéyùzhǒng]
選種和育種
英文
selektsiya i semenovedstvo- 選 : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
- 種 : 種名詞(姓氏) a surname
- 和 : 和動詞(在粉狀物中加液體攪拌或揉弄使有黏性) mix (powder) with water, etc. : 和點兒灰泥 prepare some plaster
- 育 : 育動詞1. (生育) give birth to 2. (養活; 培育) rear; raise; bring up 3. (教育) educate
- 選種 : seed selection; strain selection
- 育種 : breeding
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This paper introduced the application of biotechnology in rice genetics and breeding, including tissue culture, cell mutants selection, protoplast fusion, apomixis, molecular mark assisted breeding and genic transformation
簡要綜述了生物技術在水稻遺傳育種中的應用,主要包括組織培養、細胞突變體的篩選、原生質體融合、無融合生殖以及分子標記輔助育種和轉基因技術等方面。This paper summarized the inheritance and variation of main biological and economic characters in rape progeny from hybridization and distant crossing, inquired into the selective mating of hybrid parent and the selection of hybrid progeny, analyzed the problems which had existed in rape distant crossing breeding, and put forward some ideas for accelerating the stability of characters in distant crossing progeny
概述了油菜品種間雜交後代及遠緣雜交後代主要生物學性狀和經濟性狀的遺傳變異現象;對雜交親本的選配及雜種後代的選擇進行了探討,分析了油菜遠緣雜交育種中存在的問題,就加速遠緣雜種後代的穩定提出了一些見解。The basic objective of breeding end using different mulberry varieties is put forward from the breeding angle
從育種角度對選育和利用不同目的桑樹品種的基本目標作了簡要展望。The solution is for entomologists and plant breeders to develop a dynamic program of collection and evaluation of germplasm.
解決辦法是昆蟲學家和育種家共同擬定一個能動的種質收集和評選計劃。After entry of wto, there are still many maladjustments in guangxi ' s seed industry, such as the weak foundation of sees industry development ; the unformed market of the seed industry for fair competition ; small - scale seed enterprises ; no systematic connection among the cultivation, breeding and marketing ; lower qualification of staff who work in the seed industry and with weak sense of laws, and lack of the knowledge in operating experiences in the international market and trade etc. yet the un - efficiency system, unclear property right in enterprises, the lack of an effective mechanism to promote the rational use of resources in the seed industry and the lack of such concept as " the government creates environment and enterprises create fortune " are the deep - seated causes of the problems in guangxi ' s seed industry. therefore, the key points for promoting development of guangxi ' s seed industry under the wto framework are to focus on the promotion of the developing capability of seeds " integrated products, constantly deepen reforms, to adjust various relevant factors in the system of the seed industry which is inconsistent with each other, and to establish a new - pattern system with evident characteristics of the time spirit in order to meet the requirements of the market economy. hereinto, the specific strategies and measures for promotion of guangxi ' s seed industry development under the wto framework include kee ping up reform and innovation of the system of the seed industry, executing of non - nationalization reform in state - owned seed enterprises, formulating and executing relevant supporting policies, the improving the legal system in the seed industry, increasing public financial support on the seed industry, promoting the integration of cultivation, breeding and marketing, strengthening human resource development, developing the main body of the seed industry ' s market and making proper conditions for the functions of seed associations in the seed industry development etc
研究結果認為:發展種子產業應該把著眼點放在促進種子整體產品的開發上;種子產業的發展依賴于能充分發揮整體功能的新型種業體系的構建,而目前廣西種業體系中的品種選育、種子生產加工、種子經營以及政府管理、公共支持和社會服務六個主要組成部分都存在明顯的缺陷與不足;廣西種子企業綜合競爭力總體處于較弱水平;面對wto ,廣西種子產業仍有諸多的不適應,突出表現在產業發展基礎薄弱、尚未形成可以公平競爭的種業市場、種子企業規模小、育繁銷脫節、種業人才素質不高、種子企業法律意識淡薄、國際市場運作經驗和國際貿易知識不足等多個方面,而體制不順、企業產權不明晰、缺乏促進種業資源合理流動的有效機制以及「政府創造環境,企業創造財富」的正確理念正是導致目前廣西種子產業不能適應入世需要的深層次原因;因此,以提升種子整體產品開發能力為核心,不斷深化改革,調整種業體系中不相協調的各有關因素,構建起符合市場經濟體制要求的具有鮮明時代特徵的新型種業體系,是wto框架下加快廣西種子產業發展必須堅持的指導思想;其中,加快種業體制改革和創新、實施對國有種子企業的非國有化改造、制訂落實有關扶持政策、完善種子法律法規體系、加大公共財政對種子產業的支持力度、推進育繁銷一體化的形成、加強人才培養與引進、壯大種業市場主體、實行重點突破戰略、發揮種子行業協會作用等等,都是wto框架下加快廣西種子產業發展應該採取的具體對策措施。Areas of technical support will include cow - calf management, cattle selection, crop by - product and forage preservation ammoniation and ensilaging, pasture management, feedlot management and feeding trials
技術支持領域將包括母牛犢牛管理管理肉牛的選擇農作物秸稈和飼料貯存氨化貯存和青貯草場管理飼養場管理和育種試驗。There are concerns that harvesting wild shrimp for aquaculture may deplete local shrimp populations or cause by - catch problems, hi addition, the use of wild shrimp poses a serious risk to the shrimp aquaculture industry because they may be carriers of virulent viruses. the life cycle of chinese shrimp has been closed, paving the way for the establishment of genetic improvement programs. the use of dna markers can contribute significantly to the development and implementation of genetic improvement programs
本文嘗試利用aflp及其相關技術sampl在中國對蝦中篩選相關分子標記,並通過比較抗病中國對蝦(第四代抗病蝦)及對照(前幾代抗病中國對蝦、野生中國對蝦)譜帶差異,試圖找到與中國對蝦生長速度、抗病等性狀相關的分子標記或主效基因,為中國對蝦的遺傳圖譜構建、 qtl作圖、分子標記輔助選擇及其他育種方法奠定遺傳學基礎,同時對中國對蝦性別相關標記和sampl法發展微衛星標記作了一些探討。For increasing yield per plant, relation of effective ear numbers and ear length should be coordinated ; the direct and indirect effect or relative importance of various characters to grain yield should be made clear for providing scientific evidences to choose and compose parents of two - row hulled malting barley
為了提高單株產量應注意協調好有效穗數與穗長這一對主要矛盾;明確各性狀對籽粒產量所起的直接和間接作用及其相對重要性,確定主攻方向,配製各種優勢組合,為大麥親本選配提供科學依據,從而達到二棱型啤酒大麥預期的育種目標。We discussed the advances of research on resistant breeding for frogeye leaf spot of soybean from three aspects, resistant breeding, resistant germplasm screening and marker on resistant gene for frogeye leaf spot, which could provide information for resistant breeding
摘要從抗灰斑病育種、抗性資源篩選和抗灰斑病基因分子標記三個方面闡述了國內外抗大豆灰斑病育種的研究進展,為抗灰斑病育種者提供可參考的相關信息。This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits
本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究,表明除正常幼苗百分率外,其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關,因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展,指明通過遺傳育種手段改良這些性狀是可能的After selected various high yielding and hybrid varieties, their nutrient uptake pattern, interaction among fertilizer, varieties and plant density should be investigated
近年來,我國選育出一批主要作物的高產品種和雜交種,應當研究它們的需肥特性,研究施肥與這些新品種及其種植密度等不同措施的關系。Professor walter willms, the pasture management expert with agriculture and agri - food canadas lethbridge research center, and professor zhao mengli, specialist in pasture zoology at the inner mongolian agriculture university, were invited to deliver this training. zebai, the dean and grassland management specialist of sichuan grassland science academy, li caiwang and bian zhigao, the grass planting and livestock breeding specialists, and luo guangrong and yang pinggui, yak feeding and breeding specialists, gave presentations on how to improve livestock production grazing management systems, how to evaluate pasture health and the grassland zoology systems, how to manage grazing on the natural grassland and co - manage the grassland and keep balance between the grass and herds
此次培訓邀請了加拿大農業部韋斯布里奇研究院牧場管理專家walter willms教授和內蒙古農業大學牧場生態專家趙萌莉教授,四川省草原科學研究院院長草地管理專家澤柏,牧草種植育種專家李才旺卞志高,氂牛飼養育種專家羅光榮楊平貴,就提高牲畜生產的放牧管理制度,牧場健康和草地生態系統服務評估,天然草地放牧管理及草地共管和草畜平衡,冬春打貯草基地與免耕種草技術,氂牛適時出欄和氂牛雜交改良技術氂牛本品種選育等先進經驗模式進行了介紹。In addition, long juvenile period and late fruit are become primary restrictive factors in crossbreed and seed selection
另外,雜交育種和實生選種時,童期長、開花結果晚更是木本果樹品種改良的主要限制因素。It was accordingly revealed that the heritability of early maturity suffered strong environmental impact and thus in environmentally different locations it was not reliable to use the position of the first fruiting shoot and the period from sowing to budding as the criteria of early maturity but feasible and practicable to use growth period and flowering time as the index of early maturity
由此說明:早熟性的遺傳受環境影響較大,在生態條件差異較大的育種地點,以果枝始節和播種現蕾作為早熟性指標進行異地選擇是不可靠的,而以生育期、開花期為早熟性選擇指標是比較可行的。Status quo and achievement of rubber selection and breeding in yunnan
雲南橡膠樹選育種工作進展和成就A workshop to prepare students for a smooth transition into life after secondary school, and to impart skills and knowledge to help students manage and plan for their future
這課程包括介紹多種的教育和事業選擇和傳授技巧和相關訊息讓參加者能為將來作適當的安排。Based on the summarization of 20 years breeding and selection experiences of jiaxian red cattle, the market trends and bio - tech development, the technical measures of breed conservation system which combine the livestock, frozen semen and embryo storage were proposed to mainly investigate the breeding technology strategy by foreign blood introduction to increase the earlier maturity, milk production and meat performance of jiaxian red cattle
本文在總結郟縣紅牛20年保種選育經驗基礎上,根據市場發展趨勢及生物技術水平,提出了建立活體保種和冷精胚胎保種相結合的保種體系的技術措施,重點探討了通過引入外血提高郟縣紅牛早熟性,泌乳性,肉用性的育種技術模式。The paper adopted the common breeding way by series of mutagen treating to the yeast ' s cell and spheroplast. finally, the excellent mutant 75l 3555 was obtained. its nature of the production was determined and it can product ethanol on the condition of 40 and have high fermentative speed and stable production. on the other hand, the test was made that the best fermentative condition was found. in the malt juice, adding 0. 02 % k + or 0. 03 % a13 + can increase the production strikingly and adding some degree concentration trahalose can increase the production too and cut short the time of taming. in the study of using molasses producting ethanol, we can obtain high productivity contained the following composition : nitrogen source 1. 5 % maize and 0. 075 % ( nh4 ) 2so4
本實驗以常規的育種方法,通過對酵母細胞懸液和原生質體進行一系列誘變,經過大量的篩選,最終選育出一株耐高溫高產菌株75l _ ( 3566 ) ,並對其進行了生產性能的測定。 75l _ ( 3566 )在40條件下,濃度為20 bx的麥芽汁發酵液中,產酒率高達11 . 5 ,而且發酵速度快,發酵周期可縮短12h ,其生產性能穩定,可以適應大部分以澱粉質為原料的生產廠家的需要。同時本實驗對75l _ ( 3566 )進行了發酵條件優化的初步研究。Maize transformation is limited by the receipant materials. only a few inbreds, such as a188, b73 and their derived inbreds, can regenerate well, while those elite ones that are widely used are not easy to transform successfully
目前,玉米轉化僅限於少數培養性能好的自交系材料,如a188 、 b73及其衍生系,而對農藝性狀優良的自交系應用較少,本研究旨在建立一套穩定、高效的遺傳轉化體系,包括優良受體材料的選擇和培養基配方的改良,同時獲得抗除草劑的優良玉米育種材料。Four japonica restorer lines with the restoring genes for the genetic - cytoplasmic male sterility including jijing 85, ji 524, e180 and e385 have been successfully developed through the breeding method of recurrent selection, using eight japonica ptgms lines and 28 elite japonica varieties or lines selected from the north cold rice growing area in china as the breeding materials
摘要利用8份光溫敏核不育粳稻材料及28份北方寒冷稻作區優良粳稻品種(系)作為原始親本開展輪回選擇育種,育成了吉梗85 、吉524 、 e180和e385等4個具有三系恢復基因的粳型恢復系。分享友人