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varieties     
相关语句
  品种
    PRELIMINARY OBSERVATION AND ANALYSIS OF THE MAIN ECONOMIC CHARACTERS OF THREE NELUMBO NUCIFERA VARIETIES
    三个莲品种主要经济性状的初步观察和分析
短句来源
    FUZZY CLUSTER ANALYSIS OF THE LOTUS VARIETIES
    荷花品种的模糊聚类分析
短句来源
    A PRELIMINARY STUDY ON GROUP CLASSIFICATION OF MAJOR FUJIAN LONGAN VARIETIES
    福建主栽龙眼品种的类群分类初探
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    Cluster Analysis of Weight Per Fruit for Apple Varieties
    苹果品种单果重的聚类分析
短句来源
    STUDY ON THE EVOLUTION AND CLASSIFICATION OF PEACH VARIETIES THROUGH ISOZYME ANALYSIS
    桃品种演化及分类研究-同工酶分析
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  变种
    ,and that Chinese cabbages fall into 7 varieties, var. pekinensis (Rupr. )
    rapifera(Matzg.) Sinsk],中国白菜亚种分别调整为7个变种[大白菜var.pekinensis(Rupr.)
    Group A included seven varieties, group B eight and group C only one.
    该系统将芥菜的16个变种划归A、B、C三个组,其中A组7个变种,B组8个变种,C组只有一个变种,B组又可细分为两个亚组.
    Differences of Shelf-life in Some Melons Including Six Varieties of Cucumis melo L.
    来自甜瓜属(Cucumis melo L.)6个变种部分品种货架期差异比较
短句来源
    The present study concerns karyotype analyses on the three varieties of Capsicum annuum L. : var. annuum, var. conoides and var. grossum, all grown in China. The karyotype formulas of the three varieties are 2n = 24 = 20m + 2sm(SAT) + 2st.
    本文对我国栽培的辣椒的3个变种即耐湿椒、朝天椒和菜椒的核型进行了分析,它们的核型公式均为2n=24=20m+2sm(SAT)+2st。
短句来源
    By means of polyacrylamide gel vertical plate electrophoresis, peroxidase isoenzymes of 14 species and 21 varieties of Cymbidium in Yunnan province were analysed.
    用聚丙烯酰胺凝胶电泳分析云南兰属14个种21个变种和品种的过氧化物酶同工酶。
短句来源
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  品种的
    FUZZY CLUSTER ANALYSIS OF THE LOTUS VARIETIES
    荷花品种的模糊聚类分析
短句来源
    A PRELIMINARY STUDY ON GROUP CLASSIFICATION OF MAJOR FUJIAN LONGAN VARIETIES
    福建主栽龙眼品种的类群分类初探
短句来源
    PHYSIOLOGY OF RESISTANCE OF POTATO VARIETIES TO SOFT ROT DISEASE——Ⅰ.RELATIONSHIP BETWEEN THE CONTENT OF FREE AMINO ACIDS IN TUBERS AND THEIR RESISTANCE
    马铃薯品种对细菌软腐病抗性生理指标的研究——Ⅰ.品种的游离氨基酸含量及其与软腐病抗性的关系
短句来源
    The Study on the Pollination Biology of Some Apricot Varieties
    若干杏品种的授粉生物学研究
短句来源
    STUDY ON THE POLLINATION BIOLOGY OF SOME APRICOT VARIETIES
    若干杏品种的授粉生物学特性研究
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  个品种
    8 varieties of Seed - watermelon and the other 4 varieties in Citrullus lanatus. were used to detect genetic diversity by RAPD.
    用随机扩增多态DNA(RAPD)标记方法对籽用西瓜的8个品种(系)和西瓜种内其他变种的4个品种(系)进行了遗传多样性的检测.
    The result indicated that the isoperoxidase zymogram of mature leaf in the middle of shoot was relative stable, it could be used in classification of varieties. Jonagold and Fuji which were grafted on M7、MM106、M26、M7/M. prunifolia、M9/M.
    结果表明,新梢中部成龄叶片在M7、MM106、M26和M7/海棠、M9/海棠、M26/海棠砧木上的乔纳金和秋富,两个品种, 均与各自的自根苗在酶谱上没有差异,只是在酶带的深浅上有所不同。
    The symptoms, dry matter accumulation and chloroplast submicrostructure were studied in three varieties of lettuce grown in higher Se concentration (>50mg/L) with DFT culture.
    本文通过DFT栽培形式,研究了生菜三个品种在高硒胁迫(>50mg/L)下的症状表现、干物质积累、叶绿体亚显微结构的变化。
    According to the statistics and analysis data of the varieties test of 7 cultivars and the different orchards investigation,it is shown that the yield per tree of Hinde(H2) in its early years is extreme significant better than Ikaika(333),Kakea(508),Keauhou (246),Kau (344), Makai(800),significant better than Own Choice (O.C) and the yield per tree of Hinde(H2) in P.R.
    对以7 个品种为试材的品种比较试验和各试种点结果进行了调查统计分析,结果表明: Hinde(H2) 初产期的产量极显著高于品种Ikaika(333)、Kakea(508)、Keauhou (246) 、Kau (344)、 Makai(800)等,显著高于品种Own Choice (O.C);
    Study on the Peroxide Enzyme Isoenzyme of Three Varieties Tomato
    3个品种番茄过氧化物酶同工酶的研究
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      varieties
    Euler characteristic of certain affine flag varieties
          
    Degenerations of flag and Schubert varieties to toric varieties
          
    In this paper, we prove the degenerations of Schubert varieties in a minusculeG/P, as well as the class of Kempf varieties in the flag varietySL(n)/B, to (normal) toric varieties.
          
    As a consequence, we obtain that determinantal varietes degenerate to (normal) toric varieties.
          
    We show that wonderful varieties are necessarily spherical (i.e., they are almost homogeneous under any Borel subgroup ofG).
          
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    Controlled crosses made between apple×pear(P.communis,P.serotina,P. Bretchneideri,P.ussuriensis),apple×plum,apple×cherry,apple×peach(P.pe- rsica,p.Davidii),apple×apricot,and apple×strawberry from 1953 to 1955 have proved that hybrid seeds can be obtained even between sub-families,except the strawberry.The percentage of fruit setting varied with the remoteness of the phylogenetical relation befween female and male parents,ie.apple×pear higher than apple×stone fruits.For different varieties of apple under...

    Controlled crosses made between apple×pear(P.communis,P.serotina,P. Bretchneideri,P.ussuriensis),apple×plum,apple×cherry,apple×peach(P.pe- rsica,p.Davidii),apple×apricot,and apple×strawberry from 1953 to 1955 have proved that hybrid seeds can be obtained even between sub-families,except the strawberry.The percentage of fruit setting varied with the remoteness of the phylogenetical relation befween female and male parents,ie.apple×pear higher than apple×stone fruits.For different varieties of apple under different natural and agricultural conditions gave different results,it is suggested that in order to obtain hybrid seeds several maternal varieties should be used in two or three conti- nuous years. Seeds obtained from mixed pollination method(a limited quantity of pollen grains of an apple variety applied to the stigma 4 hours after the proceeding dis- tant cross)were most probably not true hybrid seeds.It seems necessary to length- en the time interval between the two operations of pollination. Pollination with old stigma(6 days after emasculation)reduced the percentage of fruit setting in apple×pear,and it seemed to have some positive effect in app- le×stone fruits.The percentage of fruit setting was greatly increased in appee× pear by using trees which had been prelimiuarily vegetative-approached as maternal parents,as compared with ordinary cross. The seedlings of distant hydrid,especially those individuals with parental or new characteristics,grew very feebly and soon perished with gradual.browing and drying of the root system.

    一、用一般的套袋授粉法进行苹果和梨、和核果类桃、李、樱桃、山杏、山毛桃等组合的有性杂交可以获得杂交果实和种子。二、杂交的结实率因父本的种类而不同,苹果和梨(仁果类)杂交结实率、结种子率一般较苹果和桃、李、樱桃等核果类为大。三、母本苹果不同品种不同的自然及栽培条件下成功的可能性不同。因此在进行远缘杂交时应同时选几个品种作为母本,在不同年份连续进行较易获得成功。四、先授以远缘花粉隔四小时后再授以限量近缘花粉的混合授粉法所得结果不可靠。是否用延长间隔时间或采用丧失发芽力的近缘花粉的混合授粉法以促进杂交结实而不致引起差误有待于进一步研究。五、用去雄后6天进行授粉的衰老柱头授粉法,似不宜用于一般杂交结实尚不很困难的苹果和梨之间的杂交,但用于苹果和某些核果类果树之间的杂交似有促进作用。六、以父本种类作砧木对母本进行教养影响的无性渐近杂交法显著地提高了苹果和梨远缘杂交的结实率。七、远缘杂种生活力弱,幼苗甚易夭折,一般从茎的基部或地下部分开始变褐,渐渐全株枯死。杂种部分植株表现父本梨或全新性状,表现这些性状的植株生活力尤为衰弱。如何克服杂种幼苗的夭折尚待继续研究。

    Occurrence of Ustilago tritici on the improved varieties of spring wheat is a serions problem in Manchuria.The use of modified hot-water treatment in the early spring is more or less limited on account of the enormous quantity of seeds and the short period of sowing time.For this purpose,the hot-water treatment of the seeds in the fall and to store over the winter after being perfectly dried is suggested. Experments are held in the laboratory and greenhouse,as well as in the field. The treated and untreated...

    Occurrence of Ustilago tritici on the improved varieties of spring wheat is a serions problem in Manchuria.The use of modified hot-water treatment in the early spring is more or less limited on account of the enormous quantity of seeds and the short period of sowing time.For this purpose,the hot-water treatment of the seeds in the fall and to store over the winter after being perfectly dried is suggested. Experments are held in the laboratory and greenhouse,as well as in the field. The treated and untreated seeds are stored under various environmental conditions at different periods of longevity.A final measurement between treated and un- treated seeds is made. The results obtained from 1953 to 1955 indicate as follows:Generally,under normal dry conditions of more than five months' storage,there is no difference between treated and untreated seeds in the percentages of germination,rates of emergence,heights and dry weights of seedlings,and yields.However,under conditions of high relative humidity,the treated seeds would be deteriorated in the same manner as the untreated ones.Although the results point out that the treated seeds tend to delay the emergence of seedlings from soil,yet,it does not influence the later growth of the wheat plants.Varietal difference between the treatments in the experiments is insignificant. The tentative results lead to a conclusion that the seeds of spring wheat varieties to be treated in the fall and stored in the winter may have a practi- cal value in Manchuria.

    1.经二年的试验证明,小麦种子经冷水温汤浸种后,充分干燥,在普通干燥室内贮藏达5个月以上,其发芽、出土、苗期生长及最终产量均不受影响。2.在潮湿情况下贮藏,种子的出土率即迅速降低。但温汤浸种后的种子对湿度的感应与一般种子无异。3.参加试验的三个东北地区小麦推广良种对于浸种与贮藏关系上所表现的反应一致。4.贮藏对温汤浸种的防病效果无影响。

    To study the conditions required for the development in vernalization stage of peas and broad beans,a series of field experiments were carried out and the results are summarized as follows: Peas and broad beans were able to complete their vernalization stage of de- velopment under 0°—20° C.or even higher.Within the above mentioned temperature range,10°C.was more suitable than 0℃.;and apparently temperatures higher than 10℃.were even more suitable as indicated by the more rapid development under higher temperatures....

    To study the conditions required for the development in vernalization stage of peas and broad beans,a series of field experiments were carried out and the results are summarized as follows: Peas and broad beans were able to complete their vernalization stage of de- velopment under 0°—20° C.or even higher.Within the above mentioned temperature range,10°C.was more suitable than 0℃.;and apparently temperatures higher than 10℃.were even more suitable as indicated by the more rapid development under higher temperatures. When vernalization treatment was applied to the seeds in germinating condition the effect on hastening the emergence of flower bud was more significant when seeds were sown in June than when they were sown earlier;and the effect was also more significant with late varieties than with early varieties. When germinating seeds were treated at 0°—10℃.,the time necessary for the completion of vernalization stage was longer than 20—25 days.With seedlings unber field conditions the development in vernalization stage advanced more rapidly than with germinating seeds under artificial vernalization treatment.From spring to summer the time required for the completion of vernalization stage under field conditions shortened with the delaying of date of sowing. Based on the facts given above,it may be hypothesized that the effect of vernalization treatment on hastening the emergence of flower bud is determined by the relative length of the period required for the plant to complete its development in the vernalization stage after it has emerged from the soil as compared with the period required for the plant to accumulate those special nutritive substances indispensable for the development in photostage and the differentation of reproductive organs.

    一、豌豆、蚕豆能在0°—20℃以至20℃以上的温度下通过春化阶段。二、在这温度范围内10℃较0℃.适合,看来较高的温度比10℃.更为适合。三、种子春化处理在提早现蕾方面的效应,迟播较早播显著,晚熟品种较早熟品种显著。四、萌动种子在0°—10℃.人工春化处理条件下通过春化阶段发育需要20—25天以上。五、在植株状态和田间条件下比在萌动种子状态春化处理条件下进行春化阶段发育较为迅速,从春到夏田间通过春化阶段发育所需的时期随着播种期的延迟而缩短。六、对于豌豆蚕豆种子春化处理在提前现蕾方面的效应问题提出了「处理效应的大小决定于植株出土后必须补行春化阶段发育的时间和植株积累光照階段发育及形成繁殖器官所需特定营养物质的必要时间的相对长短」的假定。

     
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