種間不育性 的英文怎麼說

中文拼音 [zhǒngjiānbùyùxìng]
種間不育性 英文
interspecific sterility
  • 種 : 種名詞（姓氏） a surname
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 育 : 育動詞1. （生育） give birth to 2. （養活; 培育） rear; raise; bring up 3. （教育） educate
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. A major barrier to interspecific hybridization is sterility in the f1 progeny.

    種間雜交的主要障礙是F1代的不育性。
  2. Seventeen important morphological characters were analysed to identify and evaluate genetic diversity of morphology of the lespedeza populations. fourteen vital morphological characters were studied using basic statistics, correlation analysis, factor analysis and cluster analysis. zymograms were analysed using eighteen alleles of seven allozymes

    對14個關健形態學性狀指標的平均值、方差、標準差、變異系數等基本統計分析表明，胡枝子屬植物不同種間以及種內居群間在這14個重要形態學性狀上的遺傳差異較大，變異系數達28 . 89 122 . 36 （全生育天數除外，變異系數為4 . 72 ） 。
  3. The total significant differences among groups were compared by two way anova, factoring treatment group and incubation medium level. post hoc testing were used to evaluate the significance of subgroup differences by lsd and snk methods, significant correlation between every two transmitters was analyzed by pearson correlation

    用隨機區組設計的方差分析進行總體均數的差異顯著性比較，組間比較用hd法和snk法；不同神經遞質之間的相關性分析用pearson相關分析法；不同孵育條件下同種處理組間比較用stwm 』 lt檢驗。
  4. The endocrine cells in the digestive and glands of alligator sinensis embryos aged from 8th to 55th day were localized and compared by using immunohistochemical method with thirteen kinds of antiseras of hormone. during the development of pancreas in alligator sinensis embryos, somatostatin ( ss ) immunoreactive ( ir ) cells, 5 - hydroxytryptamine ( 5 - ht ) - ir cells, glucagon ( glu ) - ir cells, epidermal growth factor ( egf ) - ir cells appeared on 18th day. no p53 protein - ir cell, gastrin - ir cell, testosterone - ir cell, chromogranin a - ir cell, vasoactive intestinal polypeptide - ir cell, epithelial membrane antigen - ir cell or insulin - ir cell was found in the pancreas of alligator sinensis embryos

    本實驗採用免疫組織化學技術，應用13種不同的抗血清，對孵育時間8 ? 55天揚子鱷胚胎消化道及消化腺內分泌細胞的種類進行鑒別、定位和比較，結果如下：揚子鱷胚胎胰腺中，生長抑素、 5 ?羥色胺、胰高血糖素、表皮生長因子、胰多肽免疫反應陽性細胞出現于第8天； p物質免疫陽性細胞出現于第18天； p53 、胃泌素、睪酮、嗜鉻素a 、血管活性腸肽、上皮膜骯原、胰島素免疫陽性細胞在各期揚子鱷胚胎胰腺中均未發現。
  5. Education in china has since a long time ago regarded the teaching - studying process simply as a process of understanding, overlooking the emotional activities along with it, and, effect of teaching activities is greatly weakened as a result. directed against this, we put forward a project of reach and control on the goal of etmotional field in studying of chemical course of secondary school students, which is based on roger ' s theory of non - guided teaching and bloom ' s theory about goal of emotional education, taking into account our investigation and analysis on emotional problems in chemical course studying of students from several secondary schools of changsha of different levels

    國內教育長期以來把教學過程簡單地看作一種認知過程，忽視了伴隨其間的情感活動，從而在很大程度上削弱了教學活動的效果。本文即針對這種狀況，根據布盧姆關于教學過程中情感教育目標的理論以及羅斯傑關于「非指導性教學」等理論，結合對長沙市不同層次的幾所中學的學生化學學習情感問題的調查分析，探討了目前中學生化學學習情感領域教育目標的達成與調控問題。
  6. During wheat and barley bred in winter in sanya, some technological characteristics concerned must be wielded according to the ecological conditions there. 1 ) carefully select materials and avoid planting the materials that can not head in sanya. 2 ) cultivated measure : spread lime before ploughing ; and make furrows during soil preparation. spread funandan in sowing furrows. after every irrigation and heavy rains, surplus water must be drained off immediately and soil must be intertilled in time. it is also a key measure in breeding in winter to prevent and eliminate the plant disease, pest and mice during plant growing period. 3 ) the flowering period of parent for hybridization must be adjusted. 4 ) the criterion for each trait selection to breeding materials should be soften to different degrees

    在三亞冬繁麥類時，應根據當地生態條件掌握好有關技術特點：慎重挑選冬繁材料，盡量避免攜帶可能在三亞不抽穗的材料；栽培措施應注意耕翻前撒施石灰，整地需開廂起壠，播種溝先撒呋喃丹，灌水及大雨後要排除余水，及時鬆土，生育期間注意防治病蟲鼠害；雜交親本應注意調節花期；對育種材料各性狀的選擇標準都要不同程度地放寬。
  7. 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
  8. The direct seeding experiments of different pteris vittata genotypes showed that there was significant difference in germination and emergence traits among pteris vittata genotypes collected from different areas in china, with germinating time ranging from 12 - 40 days, duration from germination to emergence varying between 13 - 46 days. as the seeds of pteris vittata are very small, with little stored nutrition, the genotypes, which are quick in germination and emergence, are suitable for direct seeding in the field

    不同基因型的蜈蚣草的直接播種試驗研究表明，來自我國不同地區的蜈蚣草基因型在萌發特性有顯著差異，萌發時間變動在12 - 40d之間，萌發到成苗時間變化在13 - 46d 。因為蜈蚣草種子小，貯藏的營養物質少，故具有快速萌發和成苗特性的基因型易於田間直接育苗。
  9. A major barrier to interspecific hybridization is sterility in the f1 progeny

    種間雜交的主要障礙是f1代的不育性。
  10. The study on the characteristics of development and seed setting of different spikelet and floret positions was important for the realization of big - spike - cultural - goal with more spikelets and grains. with both the winter type ( wv ) and spring type ( sv ) varieties sown at different dates, it was found that the greater seed setting capacity of spikelets resulted in more grain number of spike. the trend of differences in grain weight per spikelet between the different sowing dates and varieties was similar to that of grain number. the correlation between the average grain weight of middle spikelets and lower spikelets and the grain weight per spike was highly significant. the environmental changes resulted from different sowing dates mainly effected the middle spikelets development, even though the differences between wv and sv were represented in every spikelet positions. the grain weight on the second floret position was most sensitive to the development status of wheat plant and environmental changes, and could represent the yielid potential of the whole spikelet. the results showed that the enhancement of seed setting of the middle spikelets ( from 5th to 15th ) and the grain development from the first to third floret positions was a key to realize big - spike and grain

    確定小麥不同小穗位和小花位發育與結實特性是實現大穗多粒的重要前提.本文通過對冬、春性小麥品種分期播種試驗得出，較高的小穗結實力是增加穗粒數的重要因素.不同播期、品種之間，小穗粒重和粒數呈現相同的變化趨勢.中部以及基部小穗粒重與穗粒重之間呈高度正相關.體現環境差異的播期效應以對中部小穗發育的影響為主，而冬、春性品種的基因型差異可反映在各個小穗位上.第2小花位的子粒發育狀況反映整個小穗的生產能力.結果表明，促進中部優勢小穗（第5 15小穗）結實和第1 3小花位子粒發育是提高小花結實率和穗粒重的關鍵
  11. The yields of the several two - line hybrids and traits between normal plant and male sterility plant of f1 generation of hybrid flax were investigated

    摘要通過田間試驗，對幾個利用溫敏雄性不育亞麻雄性不育系配製的雜交種的產量表現及不育株率和不育株率對產量的影響進行了分析。
  12. The results showed that the compatibility indexes were obviously higher when the male sterile lines were used as the female parent than when their respective maintainer counterparts were used as the female parent, indicating the male sterile cytoplasmic effects on interspecific cross incompatibilities in cruciferae

    結果表明：三種類型的不育系均有一致的趨向，即用不育系和保持系與同一親本雜交的親和指數，不育系作母本的明顯高於以保持系作母本的組合，表明十字花科種間雜交親和性具有雄性不育細胞質遺傳效應。
  13. Biodiversity exists among am fungi and is influenced by numerous factors including soil properties and plant species. if am fungi are to be used in sustainable agricultural systems it is necessary to study native am fungi in the target areas and then select efficient isolates that can be applied as inocula in the field to improve crop growth. the objectives of this study were to investigate the germplasm of am fungi, to understand the distribution pattern of am fungi in different ecological conditions such as area, soil factor and host plant, to select isolates effective in nutrient acquisition by the host plant sweet potato, to test their effectiveness under field conditions, and to monitor amf after their introduction into the field

    本研究通過調查我國北方部分地區的am真菌資源，研究了am真菌的種群組成及其在空間、土壤利用方式和宿主植物類型等不同環境條件和空間尺度上的分佈規律；在此基礎上，根據它們對甘薯的生長、吸磷效應篩選出高效菌株，在大田條件下研究了am真菌菌絲的分佈特性、代謝活性及其對甘薯產量和品質的影響；並通過分子探針跟蹤調查了引入am真菌在共生體中的發育和表達，以期為菌根真菌的生產應用提供技術支持。
  14. Based on the contemporary students " autonomous learning behavior in colleges and universities, and campus as an object of reference, this paper dates back to the developmental requirements of modern h igher education to campus space under the alteration of university concept and analyzes the connotations of autonomous learning space from diverse aspects by means of environmental behavioristics, psychology and other architectural theories. it emphasizes that its essence is to provide functional space in which students can study individually and meanwhile conduct public communications, thus two contradictory functional spaces are compromised. that is : one is introvert private learning space and the other is space for open discussion, communication and rest

    本論文將現代高校大學生自主學習行為作為研究起點，以校園為參照物，通過追溯大學理念的演變下的現代高等教育模式對校園空間的發展要求，運用環境行為學，心理學和其它建築理論，從不同橫斷面剖析了高校自主學習空間的涵義，強調其本質是能夠提供大學生個體學習和公眾交流的兩種體驗，能夠融合兩種互相矛盾的功能空間：即內向私密性的學習空間和開敞的討論、交流及休息的公共空間。
  15. Within the one - hour lecture class, we talked about features, basic knowledge, and differences between the reptiles, amphibians and arthropods. the concept and details of captive care, husbandry and conservation about the three were also covered

    在一小時的講座內，我們簡述了爬蟲類兩棲類及節肢類動物的特性形態和不同種類之間的分別，也有關于飼養和保育的資訊。
  16. In the artificial - planting, the strain of cordyceps militaris is easy to degenerate. at present, the study about the fungus in cordyceps genus are just in the identification of fungi 、 the nutrition analysis 、 the using in medicine and artificial - planting. although, it could reduce the lost by the usual breeding way, we could not solve the problem at basic. about the degeneration of strain, people mostly use the gender - cycling 、 the fusing - cytoplasmic technology and the genetic - engineering method to reform the strain. most of people use moleculor method in the study of relationships among the species and between the species

    用常規選育方法雖然能減少一定的損失，但不能從根本上解決菌種退化這一長期困擾企業生產的問題。針對菌種退化問題，主要是利用有性循環、原生質體融合和遺傳工程等途徑進行菌株改良，應用分子生物學手段只是研究種內、種間的系統關系等，而關于菌種退化遺傳機理的研究尚未見報道。菌種退化是菌類栽培過程中普遍存在的，也是生產當中迫切希望得到解決的問題。
  17. You young educated people have so much to contribute to development, and to meeting the global challenges that i have spoken about safeguarding world peace and security, developing friendly relations among peoples of different faith or culture, and achieving the millennium development goals

    我剛剛談到了各種挑戰，包括保衛世界和平與安全，在不同信仰或文化的人民之間發展友好關系，實現千年發展目標等等，為應對這些全球性挑戰，為實現發展，你們這些有教育的青年可以大有作為。
  18. Validation study of forensic science was carried out using forensic samples such as hair, nail and badly degrade bone. the method has also been used in case work to validate the practicability. maga2 software was employed to analyze the genetic distance between samples and construct the phylogenentic tree

    用毛發、指甲、微量血痕及各種陳舊骨骼樣本對所建立的方法進行法醫學有效性測試，並用實際案例驗證其實用性；應用所建立方法對漢族、黎族、維吾爾族、瑤族、藏族無關個體樣本共446份進行序列分析，調查不同民族mtdna多態性；應用mega2軟體對所得各民族數據做進化距離分析，並構建各民族內部和民族間的系統發育樹，探討各民族間的遺傳關系。
  19. The male sterile lines and their respective maintainer lines of brassica napus, b. campestris and b. juncea were chosen as the parents in interspecific crosses with b. napus, b. campestris, b. juncea and eruca sativa in order to investigate male sterile cytoplasmic effects on the interspecific cross incompatibility

    摘要選擇甘藍型、白菜型、芥菜型三種類型油菜雄性不育系和保持系分別與甘藍型、白菜型、芥萊型油菜和蕓芥進行種間雜交，研究十字花科種間雜交親和性雄性不育細胞質遺傳效應。
  20. Pedodiversity is a new theory and method based on biodiversity conception in ecology but applied to non - renewable non - biological resource that was developed since the 1990s. this paper applied pedodiversity analytical theory and method to analyze the spatial variability of the soils developed on different parent materials and terrains, the data source is 1 : 1, 000, 000 scale soil and terrain digital database ( soter ) of shandong province, china

    土壤多樣性理論是20世紀90年代發展起來的、基於生態學中生物多樣性概念但應用於不可再生性非生物資源的一種新的理論與方法.本論文應用土壤多樣性分析理論與方法，以山東省1 ： 100萬土壤-地形體數字化數據庫（ soter ）為數據源，對不同母巖、不同地形上發育的土壤空間可變性進行了研究。
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