tree breeding 中文意思是什麼

tree breeding 解釋
樹苗育種
  • tree : n 特里〈姓氏〉。n 1 樹〈主要指喬木，也可指較大的灌木〉。 ★玫瑰可以稱為 bush 也可以稱為 tree 2 木...
  • breeding : n. 1. 孵化；飼養；繁育。2. 選種；育種。3. 繁殖，生育。4. 薰陶；養育，教養，禮貌。5. 【原子能】增殖，再生。
  1. Scientists have discovered the tree mallow is choking puffin breeding sites on scottish islands and have warned that the plant could soon start killing off other seabirds, such as herring gulls and cormorants

    科學家發現花葵正在扼殺海雀在蘇格蘭離島上的繁殖地，並警告這種植物很快就會開始殺害其他的海鳥，如銀鷗和鸕? 。
  2. Big tree transplant and breeding technique

    論大樹移植技術
  3. The results indicate that under the laboratory condition, hormone drugs can enhance the pregnant rate of the tree shrews during non - breeding period, and our method of rearing young tree shrews is convenient and easy to be operateed

    表明在實驗室條件下，非繁殖期使用激素類藥物能提高成年樹?的受孕率；被動母乳聯合人工配方乳喂養仔樹?的方法簡單易行。
  4. Application of dna molecular markers on fruit tree genetics and breeding

    分子標記在果樹遺傳育種研究中的應用
  5. Forest tree genetics and breeding

    林木遺傳育種學
  6. The results showed that the total annual service value of forest ecosystem in yashushan natural reserve was up to 8. 9866 10 ^ 7 yuan ( rmb ), of which 7. 695 10 ^ 6 yuan for standing tree value, 1. 925 10 ^ 6 yuan for forest by - production, 7 10 ^ 5 yuan for cattle breeding, 2. 496 10 ^ 6 yuan for forest recreation, 3. 6805 10 ^ 7 yuan for water conservation, 5. 446 10 ^ 6 yuan for soil conservation, 1. 823 10 ^ 7 yuan for co2 absorption and o2 release, 1. 5732 10 ^ 7 yuan for environmental purification, 1. 37 10 ^ 5 yuan for nutrient storage, 7. 8 10 ^ 4 yuan for forest calamity prevention and 6. 24 10 ^ 5 yuan for gene resource

    結果表明，寧化牙梳山自然保護區森林生態系統服務功能平均每年達8986 . 6萬元，其中各分項的生態服務功能價值為：活立木價值769 . 5萬元；林副產品價值192 . 5萬元；畜牧養殖價值70 . 0萬元；旅遊價值249 . 6萬元；涵養水源價值3680 . 5萬元；水土保持價值544 . 6萬元；固定co2和釋放o2價值1823 . 0萬元；凈化環境價值1573 . 2萬元；營養物質的循環和貯存價值13 . 7萬元；生物防害價值7 . 8萬元；基因資源價值62 . 4萬元。
  7. Rubber tree breeding technology regulation

    橡膠樹育種技術規程
  8. The fine varieties breeding center of heze peony is dedicated to developing fine varieties of tree peony and herbaceous peonies, spreading new technology powered by scientific research

    菏澤牡丹良種繁育中心以科研為動力、以科技為依託，致力於牡丹、芍藥良種的開發、新技術的推廣。
  9. The secondary forest breeding use birds nest - site resources vertically, they can be divided into nesting in tree coronal layer guild, nesting on tree trunk guild, nestig in the under forest layer guild

    次生林繁殖鳥類對巢址資源呈現空間上的垂直利用現象，可分為樹冠層營巢、樹幹上營巢和林下層營巢繁殖集團。
  10. At present, early test in tree breeding is often used in order to shorten breeding term and provide the excellent materials for forest production as soon as possible

    目前為了盡快的縮短林木育種周期並為林業生產盡早地提供優良繁殖材料，經常採用的方法就是林木早期測定。
  11. The article based on the rural development program - chenjiao cow breeding program in huang yuan county, qinhai province. through collecting second - hand information. using tools of pra, such as questionnaires, key informant interview, matrix ranking. organizational chart, individual interview to investigate the program ' s construction, beneficial result, and problems. after that using problem analysis tree to analyze the information and find that : the up - down extension systems through beneficial inducement did not change farmers " ideas, the fanners have owned the program funds but did not breed cow. the extension systems of our country is not perfect, short of funds, no advanced equipment, dual leadership, multiple function lead to inefficient extension work. the separation of teaching, research and extension lead to unskilled extension workers. the farmers lack of skills. consultation and funds. the above deficiencies caused the inefficient extension work

    本文通過對湟源縣城郊鄉納隆口村的「 2002年農業綜合開發多種經營城郊養牛項目」項目的跟蹤調查，通過二手資料的收集，應用問卷調查法、知情人（村長）訪談法、矩陣排列、機構關系圖、個體訪談等pra的方法了解項目的建設情況、項目實施后的效益及存在的問題，再應用參與式的方法進行綜合分析，發現：從上到下的推廣體系通過利益誘導並沒有使農民的行為發生改變，出現了項目戶擁有項目款而不養殖牲畜的情況；推廣體制不順，經費短缺、設備落後、雙重領導、職能繁多導致推廣工作乏力；教科推脫離使農學院未發揮作用導致推廣人員素質低、農戶缺乏技術、咨詢、資金。
  12. Factors of inducing dormancy, determining the stage of flower initiation and dormancy development, the methods of avoiding dormancy and stimulating adequate and uniform budburst, the growth and development of tree and the cultural management, the cause of secondary dormancy and the methods of avoidance of secondary dormancy, and the breeding of non - dormant cultivars are the critical points for non - dormancy culture

    溫帶地區無休眠栽培的研究重點是：自然休眠誘導因子的確定；花芽分化進程及自然休眠進程的精確界定；避免進入深度休眠及促芽整齊萌發的配套技術；無休眠栽培條件下樹體的生長發育規律及樹體綜合管理技術；二次休眠現象發生的原因和克服措施；無休眠品種的選育。
  13. In this paper, the author summaried the mutational mechanism of low energy ion beam, the applications of it in forest tree, horticulture and flower breeding, and the applications of genetic transformation techniques mediated by low energy ion beam implantation

    文中探討了低能離子束誘變的作用機理、低能離子束誘變技術在林木和園藝花卉育種中的應用以及離子束介導的遺傳轉化的應用。
  14. Finally, the size of trees and the area required for field trails create considerable difficulties in assessing the performance. the technology of plant genetic transformation provides a efficient method to overcome many of these obstacles and to accelerate tree - breeding programs

    植物遺傳轉化能在分子水平上改造植物的遺傳物質，它可以打破物種之間的生殖隔離障礙，定向改造植物遺傳性狀，提高了育種的目的性和可操作性。
  15. Terminology of forest tree breeding and seed management

    林木育種及種子管理術語
  16. An attractive objective in tree breeding is therefore to reduce the content of lignin

    為此，開展木質素含量低的挪威雲杉新品種的選育就成為一個迫切需要解決的問題。
  17. The challenges to forestry biotechnology and tree breeding in the 21st century

    迎接21世紀現代林木生物技術育種的挑戰
  18. Moreover, the difficulties in parents selection and mating control add to the limitations of tree breeding

    植物遺傳轉化為克服木本植物傳統育種局限性、加速樹木遺傳育種進程提供了一條有效途徑。
  19. Although it is quite effective to use traditional selection breeding to tree species, long time is still needed because of long growing period of trees

    對林木米說，傳統的選擇育種是十分有效的，但由於樹木生長周期長，林木的選擇育種也需要很長時間。
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