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race
相关语句
  小种
    STUDY ON PHYSIOLOGICAL RACE OF SOYBEAN CYST NEMATODE (Heterodera glycines)
    大豆孢囊线虫(Heterodera glycines)生理小种研究初报
短句来源
    RESISTANCE TEST OF LIAONING LOCAL SOYBEAN CULTIVARS TO RACE 3 OF Hoterodera glyclnes
    辽宁省地方大豆品种对大豆孢囊线虫3号生理小种的抗性鉴定
短句来源
    THE SCREENING AND UTILIZATION OF NEW RESISTANT SOURCES TO SOYBEAN CYST NEMATODE RACE No.4
    大豆孢囊线虫4号小种新抗源的筛选和利用
短句来源
    EVALUATION OF RESISTANCE OF SOYBEAN GERMPLASM TO RACE 3 OF SOYBEAN CYST NEMATODE
    大豆种质资源对大豆孢囊线虫3号生理小种抗性鉴定研究
短句来源
    TEST OF SOYBEAN GERMPLASM FORM HUANG, HUAI AND HAI RIVER VALLEY FOR RESISTANCE TO RACE 1 OF SOYBEAN CYST NEMATODE
    黄、淮、海地区大豆种质资源对大豆孢囊线虫1号生理小种的抗性鉴定研究
短句来源
更多       
  生理小种
    STUDY ON PHYSIOLOGICAL RACE OF SOYBEAN CYST NEMATODE (Heterodera glycines)
    大豆孢囊线虫(Heterodera glycines)生理小种研究初报
短句来源
    RESISTANCE TEST OF LIAONING LOCAL SOYBEAN CULTIVARS TO RACE 3 OF Hoterodera glyclnes
    辽宁省地方大豆品种对大豆孢囊线虫3号生理小种的抗性鉴定
短句来源
    EVALUATION OF RESISTANCE OF SOYBEAN GERMPLASM TO RACE 3 OF SOYBEAN CYST NEMATODE
    大豆种质资源对大豆孢囊线虫3号生理小种抗性鉴定研究
短句来源
    TEST OF SOYBEAN GERMPLASM FORM HUANG, HUAI AND HAI RIVER VALLEY FOR RESISTANCE TO RACE 1 OF SOYBEAN CYST NEMATODE
    黄、淮、海地区大豆种质资源对大豆孢囊线虫1号生理小种的抗性鉴定研究
短句来源
    INHERITANCE OF RESISTANCE OF F2 POPULATION TO RACE 3 OF SOYBEAN CYST NEMATODE
    大豆F_1代群体对孢囊线虫3号优势生理小种抗性遗传
短句来源
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  “race”译为未确定词的双语例句
    FURTHER DEVELOPMENT OF LOVRIN 10—RACE GROUP OF PUCCINIA RECONDITA F.SP.TRITICI
    小麦叶锈菌洛10类群在进一步发展
短句来源
    STUDY ON COMBINING ABILITY OF MAIZE RACE TUXPENO
    玉米Tuxpeno种族的配合力研究
短句来源
    STUDY ON GENETIC PECULIARITY OF SOYBEAN LAND RACE POPULATION FROM FOUR PROVINCES IN SOUTHERN CHINA
    华南四省区大豆地方品种群体遗传特点的研究
短句来源
    [METHOD]Based on the amino acid information of trypsin inhibitor of buckwheat, degenerated primers were designed and a full-length cDNA sequence of BTI was amplified from cDNA by using RT-PCR and rapid amplification of cDNA ends (RACE).
    【方法】根据荞麦胰蛋白酶抑制剂氨基酸的保守序列设计简并引物,采用RT-PCR和RACE技术,以荞麦cDNA为模板,扩增BTI基因并进行序列及其表达谱分析。
短句来源
    The full-length cDNA sequence of TaSTK gene contained 1 958 bp was obtained from the salt-resistant wheat(Triticum aestivum) mutant RH8706-49 by RACE method. The coding sequence was 1 431 bp and by which 476 amino acids were encoded.
    利用RACE方法,从小麦耐盐突变体RH8706-49中扩增获得小麦丝氨酸/苏氨酸蛋白激酶(Triticum aestivumserine-threonine protein kinase)基因TaSTK的全长cDNA序列,含1 958 bp,其中开放阅读框1 431 bp,编码476个氨基酸。
短句来源
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  race
Two DREB-like genes from Bermuda grass that are induced by low-temperature or high-salt stresses were cloned using RT-PCR and RACE methods, and were named BeDREB1 and BeDREB2, respectively (GenBank accession No: AY462117 and AY462118).
      
In the pathosystem of potato and the causal agent of late blight, the β-glucan caused a local and race-specific suppressor effect on the plant host defense response.
      
Resistance of transgenic cultivars based on the expression of one or more resistance genes is sooner or later broken by pathogens whose race-producing rates are high.
      
Hydrolysis of conjugated forms of salicylic acid and accumulation of its free form was observed after infection of potato tubers (Solanum tuberosum L.) with an incompatible race of phytophthora or treatment with an elicitor (chitosan).
      
Infection of tubers with a compatible race of the pathogen or treatment with a suppressor (laminarin) decreased both the degree of hydrolysis of conjugated forms of salicylic acid and the accumulation of its free form.
      
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The present paper deals with the physiological activity of the leaf extract of Calonyction aculeatum(Linn)House and its promoting effect on tuber production of sweet potato. Calonyction aculeatum is a ornamental species of Convolvulaceae. In the leaf extract it contains physiologically active substance which plays many regulating and controlling effects such as stimulating root development of sweet potato cuttings, increasing germination rate of rice seeds, Promoting growth of rice seedlings and increasing number...

The present paper deals with the physiological activity of the leaf extract of Calonyction aculeatum(Linn)House and its promoting effect on tuber production of sweet potato. Calonyction aculeatum is a ornamental species of Convolvulaceae. In the leaf extract it contains physiologically active substance which plays many regulating and controlling effects such as stimulating root development of sweet potato cuttings, increasing germination rate of rice seeds, Promoting growth of rice seedlings and increasing number of peanut flowers. Deta of biological assay shows the physiologically active substance is neither gibberellina nor auxins. On grafting of Calonvction aculcatum to the vine of sweet potato, it will. be interestingly to see that the tuber production in then highly promoted. However while dusting this leaf extract on the leaf surface of sweet potato race "Little five teeth" under appropriate dilution and suitabie time of application, as well as on grafting, where a similar result would be obtained, i, e, the normal course of tuber development has been subjected under some profound influence and it appears as if the tuber is firstly inhibited and then accelerated. The correlationship between inhibition and acceletation and their transversion plays the role of tuber developmnt and the tuber production is thus increased. In these tubers the starch and the total sugar contents are promoted, the dry weight is higher up and the quality, is therefore improved. The strength of the physiological actvity of the leaf extract is calibrated by special method of assay, the so called "Keng rice root suppresion method" and the unit is called "Keng rice unit". Because the rice should be race of subspecies Keng Ting of Oryza sativa Linn. In field spray different race of Crops requires different strength of activity of the leaf extract. Upon repeated tests in field it is worthy to say that 0.5—1.0 "Ki-Keng unit" is the satisfactory strength to induce potato race "Apple red" and sweet potato race "Victory 100" to give excellent yields of tubers. To the former it is better to spray at the initial stage of flowering and to the latter it is suitable to spray at the time of their leaves enveloping the plough rows.

月光花叶提取物中含有生理活性物质,对甘薯的插枝发根,水稻的种子发芽和幼苗生长以及对花生的开花数能起调控作用。它不属于赤毒素及生长素类物质。以适当浓度喷洒甘薯“小五齿”叶面,对块根发育有很大影响,重现了甘薯与月光花嫁接后薯块发育过程中所出现的先抑制后促进的抑促相关规律及其转化过程,并且获得增产;薯块的淀粉含量和(?)醣量增加,晒干率提高,品质有所改善。重复验证了稻根抑制法标定叶提取物的生理活性含量在大田生产上的应用价值,证实了以0.5—1“吉粳单位”浓度在甘薯“胜利百号”封行期,马铃薯“苹果红”始花期进行叶面喷洒都能获得增产。

1. Silkworm heritability, in narrow sense, may be explained as several main economical characters possessed by silkworm, mating by method of hybrid backcros-sing with their parents, and to get the sequent results be estimated. According to study, the order of heritability of the Chinese races' characters are arranged as follows: weight of cocoon filament (70.0%)> percentage of cocoon shell (65.0%) > length of cocoon filament (53.2%) > cocoon shell weight (51.6%) > cocoon weight (38.3%). And that of the...

1. Silkworm heritability, in narrow sense, may be explained as several main economical characters possessed by silkworm, mating by method of hybrid backcros-sing with their parents, and to get the sequent results be estimated. According to study, the order of heritability of the Chinese races' characters are arranged as follows: weight of cocoon filament (70.0%)> percentage of cocoon shell (65.0%) > length of cocoon filament (53.2%) > cocoon shell weight (51.6%) > cocoon weight (38.3%). And that of the Japanese races are: lenght of cocoon filament (76.7%)> percentage of cocoon shell (67.5%) > weight of cocoon filament (61.7%) > cocoon shell weight (57.7%) > cocoon weight (44.3%).2. When selection of the larval duration tends toward short direction, some charecters such as vitality of larva-pupa, cocoon yield per ten thousand larvae percentage of eclosin, percentage of good egg laying adult and number of eggs laid per adult seem to be the positive direction. But several characters such as cocoon weight and cocoon shell weight are tend to the nagative direction. If selection of the larval duration tends toward the long direction, then the results are vice versa. While the charcters such as percentage of cocoon shell, percentage of good egg and poor egg layings seem to be no influence to the selection of larval duration on either short or long directions.3. When selection of the percentage of cocoon shell tends toward low direction, several characters such as vitality of larva-pupa, cocoon weight, cocoon yield of ten thousand larvae, percentage of eclosin, number of eggs laid per adult and percentage of poor egg laying are tend to the positive direction. Nevertheless, duration of larvae, cocoon shell weight, percentage of good egg laying adult and percentage of good egg laid are tend to the nagative direction. If selection of the percentage of cocoon shell tends toward high direction, then the results express exactly the opposite.4. When selection of the cocoon weight tends toward light direction, then the charhcters such as vitality of larva-pupa, percentage of cocoon shell, cocoon yield per ter thousand larvae, percentage of eclosin and percentage of good egg laying adult tend to the positive direction, and the larval duration, number of egg laid by each adult are tend to the negative direction. If selection of cocoon weight tends toward weight direction, then the rusults are exactly express the opposite. However, cocoon shell weight, percentage of good egg laying as well as poor egg laying express almost no effect when selection of the cocoon weight on either lighter or weight direction.

用杂交群体对亲本回交法估计桑蚕几项性状的狭义遗传力表明,遗传力的大小因性状而异,茧层率、茧丝量及茧丝长有较高的遗传力,而全茧量及茧层量的遗传力较低。 选择试验表明,桑蚕各性状之间有高度的相关性,对某一性状的直接选择亦等于对另一些性状的间接选择。选育夏秋用蚕品种,应将茧层率控制在一定的范围内,向经过短、全茧量偏小的方向选择比较妥当;春用蚕品种的选育应控制全茧量,在提高茧层率的同时,大力向经过短的方向选择为宜。

Flowering response of 152 varieties of Oryza sativa L. and 1 of O. glaberrima was investigated in phytotron by seven combinations of temperatures and photoperiods, i.e. 20℃ 10h; 25℃, 10h, 12h, 13h, 14h, 18h and 30℃, 10h.Most of the cultivars tested were responsive to short-day photo-period, the sensitivity differed markedly among varieties, many of the early cultivars of "indica" (Hsien) were shown to be long-day plants, for the longer the day-length, the earlier the panicle emergence. Two medium cultivars of...

Flowering response of 152 varieties of Oryza sativa L. and 1 of O. glaberrima was investigated in phytotron by seven combinations of temperatures and photoperiods, i.e. 20℃ 10h; 25℃, 10h, 12h, 13h, 14h, 18h and 30℃, 10h.Most of the cultivars tested were responsive to short-day photo-period, the sensitivity differed markedly among varieties, many of the early cultivars of "indica" (Hsien) were shown to be long-day plants, for the longer the day-length, the earlier the panicle emergence. Two medium cultivars of "japonica" (Keng) were shown to be day-neutral plants, for they headed earlier in 12-14 hour or 13 hour-photoperriods. The late cultivars of "japonica" are very exacting, for most of them could not differentiated under long-day treatment even to the end of the experiment, whereas most of the late "indica" cultivars eventually headed, or differentiated.When the results of 20℃, 25℃ and 30℃ treatments were compared, the heading date of most rice cultivars were earliest at 25℃, but some of the early and medium varieties headed earliest at 30℃. The acceleration of the photoperiod response by higher temperatures (25℃, 30℃)was obvious in 151 varieties, the maximum acceleration being 52.5% higher than the control (20℃).Because of the period from panicle initiation to heading is assumed to be 30 days, hence it is inferred that the basic vegetative period ranges from 3 to 77 days. On the whole, this period is shorter in early and late varieties, and longer in medium varieties.With the above informations, the authors classified the rice varieties into 20 types, according to their photoperiod-sensitivity, thermosensitivity and lengths of basic vegetative period. It is expected that additional types of rice might be identified or breeded under more suitable conditions.On the basis of available evidence, O. sativa L. is thought to have originated in the tropics and spread north-ward to the temperate regions. There is no doubt that great genetic diversity with respect to flowering behaviour does exist within this species. Diversities in photoperiod-sensitivity and thermosensitivity are amply evidenced in the present experiment. Thus the authors suggest that there are shortday, long-day and day-neutral races in O. sativa. On the other hand, there exist intermediate ecotypes or races between "japonica" and "indica", too, although additional confirmation of this suggestion is desirable.

本试验对153个不同栽培稻种在人工气候室的不同温度(20℃,25℃,30℃每日光长均为10小时),不同光照长度(每日10,12,13,14,18小时,温度均为25℃)控制条件下,观察了各品种抽穗结实等情况表明:品种间感光性有明显差异;早稻感光性大都较弱或中等,其中早籼大部分在长光下抽穗反早,属长日性;早粳一般在长光照下延迟抽穗;中稻感光性有弱、中、强三类,品种间差异大,个别品种在12~14小时抽穗快,属中间性;晚稻感光性大都较强,少数中等,最适光长为10~12小时。感温性同样有明显差异,早稻有中、强;中稻有弱、中、强三类,差异大;晚稻仅有中、强二类。早、中、晚稻的大部分品种最适温度均为25℃,少数南方品种及早、中稻为30℃。基本营养生长性在早稻品种内大部为弱及中,个别较强;中稻、晚稻也均有弱、中、强三类。全部供试品种的光,温反应类型共有20种。试验中还考查了81个品种在20℃、25℃下的结实情况,37个品种在30℃下的结实情况,有的品种较耐低温,有的较耐高温。作者还讨论了品种的光、温反应类型问题并指出新的类型将会继续随着科学的发展与生产的需要不断发现或创造出来。对籼,粳稻发育特性的区别及其形成与各该品种原产地...

本试验对153个不同栽培稻种在人工气候室的不同温度(20℃,25℃,30℃每日光长均为10小时),不同光照长度(每日10,12,13,14,18小时,温度均为25℃)控制条件下,观察了各品种抽穗结实等情况表明:品种间感光性有明显差异;早稻感光性大都较弱或中等,其中早籼大部分在长光下抽穗反早,属长日性;早粳一般在长光照下延迟抽穗;中稻感光性有弱、中、强三类,品种间差异大,个别品种在12~14小时抽穗快,属中间性;晚稻感光性大都较强,少数中等,最适光长为10~12小时。感温性同样有明显差异,早稻有中、强;中稻有弱、中、强三类,差异大;晚稻仅有中、强二类。早、中、晚稻的大部分品种最适温度均为25℃,少数南方品种及早、中稻为30℃。基本营养生长性在早稻品种内大部为弱及中,个别较强;中稻、晚稻也均有弱、中、强三类。全部供试品种的光,温反应类型共有20种。试验中还考查了81个品种在20℃、25℃下的结实情况,37个品种在30℃下的结实情况,有的品种较耐低温,有的较耐高温。作者还讨论了品种的光、温反应类型问题并指出新的类型将会继续随着科学的发展与生产的需要不断发现或创造出来。对籼,粳稻发育特性的区别及其形成与各该品种原产地的生态条件有不可分割的关系问题,指出原产南方的短日性水稻经过长期驯化、选育除了短日性

 
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