助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   hybridⅲ( 的翻译结果: 查询用时:0.077秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

hybrid
相关语句
  hybrid iii
     Application Analysis of Vehicle Crash Test and Hybrid III Dummy
     汽车碰撞试验及Hybrid Ⅲ(假人)应用分析
短句来源
  相似匹配句对
     Ⅲ.
     [];
短句来源
     PⅢ.
     P.
短句来源
     The s-p-d-f Hybrid Orbitals (Ⅲ)
     S—p—d—f杂化轨道()
短句来源
     Malaria
     疟疾()
短句来源
     Application Analysis of Vehicle Crash Test and Hybrid III Dummy
     汽车碰撞试验及Hybrid (假人)应用分析
短句来源
查询“hybridⅲ(”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  hybrid
A class of multiderivative hybrid one-step methods of order at least s+1 is constructed with s+1 parameters, where s is the order of derivative.
      
Furthermore, a class of A-stable 2 parameters hybrid one-step methods of order at least 8 are constructed, which use 4th order derivative.
      
A hybrid method for solving variational inequality problems
      
A two-stage semi-hybrid flowshop problem in graphics processing
      
In this paper, a two-stage semi-hybrid flowshop problem which appears in graphics processing is studied.
      
更多          


The headblight or scab of wheat caused by Gibberella zeae (Schw.) Petch.has in recent years become more prevalent in the rice-wheat growing area ofEastern China with two heavy epidemics in 1952 and in 1954.It was reportedfrom this area that wheat varieties showed marked differences in their susceptibilityto headblight and that native varieties in general were less susceptible than theimproved ones.It was also reported that the degree of susceptibility appeared tobe related to the stage of host development.In...

The headblight or scab of wheat caused by Gibberella zeae (Schw.) Petch.has in recent years become more prevalent in the rice-wheat growing area ofEastern China with two heavy epidemics in 1952 and in 1954.It was reportedfrom this area that wheat varieties showed marked differences in their susceptibilityto headblight and that native varieties in general were less susceptible than theimproved ones.It was also reported that the degree of susceptibility appeared tobe related to the stage of host development.In 1952,varieties with earlier date ofheading were generally less susceptible than those which headed late. Varietal tests for the headblight resistance were made in Nanking in 1952and 1954.In 1952,235 varieties and hybrids were studied for their resistance toscab under natural conditions in the field.Great differences were found in theirdegree of infection,although none of them was immune.The percentages of in-fected heads ranged from 0.9 to 89.1 with most of them having 10 to 40% infec-tion.No definite correlation was seen between the percentage of infection andthe date of heading or of maturing.In 1954,tests on varietal resistance to scabwere again made with 40 varieties and hybrids including those being relatively lesssusceptible in the previous test.Attempts were made to induce epidemics in thefield by means of artificial inoculation.Results indicated that both mycelial andconidial suspensions were similarly effective for artificial inoculation.The averagepercentages of infected heads in the inoculated plots ranged from 4.2 to 77.7 incontrast to the uninoculated plots where the average percentages of infected headsbeing only trace to 7.1 with one variety not infected. From the experimental results obtained in 1952 and 1954,it was found thatrelative stability in resistance to headblight existed among different wheat varie-ties,although there was great variation in varietal resistance due to the effect ofenvironmental factors.Two hybrids,"5201" and "5204",were found to be muchmore resistant than all other varieties tested in both years.Hybrid "5204" gave ??0.9% of infected heads in 1952 and 3.4% in 1954,and hybrid "5201" gave5.5 and 9.0% of infected heads in the respective years.Both hybrids also possessother desirable characteristics such as early maturity,relative high yield,stiffystems,and high resistance to the stripe rust. Greenhouse studies were made in 1954 with two susceptible varieties ofwheat for testing their susceptibility to headblight at six different stages of deve-lopment from shooting to hard dough.Results indicated that the plant was sus-ceptible at all these stages of development with a tendency of being more heavilyinfected toward maturity.It was also observed that temperature had obvious effecton the degree of infection.Plants inoculated at flowering stage were more heavilyinfected when kept at 25℃ after inoculation than when kept at 15℃.However,the inoculated plants kept at 25℃ during the day and at 15℃ at night resultedin a degree of infection similar to those kept at 25℃ all the time.

(一)小麦赤微病在苏、浙、皖的稻麦两熟地区经常严重发生,1952及1954年两度猖獗流行,造成苏南及浙江地区小麦生产上的严重损失。通过调查,发现各地小麦品种对病害的反应确有显著差异。地方品种,一般发病较轻,而改良品种如“2905”、“2419”、“玉皮”、“矮立多”等,常常严重地感染病害。(二)1952年在自然情况下,观察此较235个小麦品种结果,虽没有一个品种不发病,但品种间的发病率相差极大,自0.9%至89.1%,而不同品种感染程度的轻重与抽穗期及成熟期的早迟关系不大。(三)1954年大田人工接种结果,效果显著,供试40个品种接种区的最高发病率达77.7%,而自然感染区的最高发病率只有7.1%。在接种试验中,初步证明:(1)大量有效的病原体与适合病害发生的气候因子同是病害流行的主要条件;(2)接种方法,用菌丝体接种与用分生孢子接种的效果,并无多大差别;(3)品种的抽穗先后,与发病轻重无一定关系。(四)温室试验指出,小麦自抽穗至糊熟各期麦穗被害率相似,但小穗的被害率在抽穗期最低,开花以后,有愈近成熟感染程度愈重的趋势。(五)开花期接种后的小麦,置於25℃的麦穗被害率和置於15℃的相似,但前者的小穗被害率此后...

(一)小麦赤微病在苏、浙、皖的稻麦两熟地区经常严重发生,1952及1954年两度猖獗流行,造成苏南及浙江地区小麦生产上的严重损失。通过调查,发现各地小麦品种对病害的反应确有显著差异。地方品种,一般发病较轻,而改良品种如“2905”、“2419”、“玉皮”、“矮立多”等,常常严重地感染病害。(二)1952年在自然情况下,观察此较235个小麦品种结果,虽没有一个品种不发病,但品种间的发病率相差极大,自0.9%至89.1%,而不同品种感染程度的轻重与抽穗期及成熟期的早迟关系不大。(三)1954年大田人工接种结果,效果显著,供试40个品种接种区的最高发病率达77.7%,而自然感染区的最高发病率只有7.1%。在接种试验中,初步证明:(1)大量有效的病原体与适合病害发生的气候因子同是病害流行的主要条件;(2)接种方法,用菌丝体接种与用分生孢子接种的效果,并无多大差别;(3)品种的抽穗先后,与发病轻重无一定关系。(四)温室试验指出,小麦自抽穗至糊熟各期麦穗被害率相似,但小穗的被害率在抽穗期最低,开花以后,有愈近成熟感染程度愈重的趋势。(五)开花期接种后的小麦,置於25℃的麦穗被害率和置於15℃的相似,但前者的小穗被害率此后者高。日间25℃和夜间15℃交替的变温处理,发病情形与始终置於25℃的相近。(六)不同小麦品种对于赤微病具有相对稳定的抵抗性或感染性。“5201”及“5204”等杂交系,在自然感染和人工接种情形下,发病都很轻微,并且具有早熟、丰产、秆硬和高度抵抗条锈等优良特性。

Citrus in South China is affected with a highly destructive disease known as"Yellow shoot".The disease is most serious in the Chaoshan and the Yuehchungdistricts of Kwangtung Province and in the Changchow district of Fukien Province.It has been known in the Chaoshan district for over 70 years but has becomeepiphytotic only since about 30 years ago.During this period,millions of Citrustrees have been killed. Citrus trees may be affected in any age.The characteristic symptoms of thedisease are general yellowing...

Citrus in South China is affected with a highly destructive disease known as"Yellow shoot".The disease is most serious in the Chaoshan and the Yuehchungdistricts of Kwangtung Province and in the Changchow district of Fukien Province.It has been known in the Chaoshan district for over 70 years but has becomeepiphytotic only since about 30 years ago.During this period,millions of Citrustrees have been killed. Citrus trees may be affected in any age.The characteristic symptoms of thedisease are general yellowing of some of the nearly mature new shoots put out insummer,autumn,or early winter,dropping of the yellow leaves,and rotting ofrootlets.In addition to these general symptoms in the early stage,fasciculationof branches and malformation of leaves (abnormally large or deformed in variousways) often occur on Ponkan and Chiaokan (C.reticulata) and are particularlycommon on sweet orange.On affected sweet orange trees may also be seenshortening of internodes,resulting in bunchy growth of branches,and downwardas well as upright growth of shoots.In a later stage,the affected tree puts outnew shoots as usual but such shoots generally become chlorotic showing zinc ormanganese deficiency symptoms.The midrib and lateral veins as well as theadjoining tissues of part of the older leaves turn yellow.The midrib and largerveins may also become enlarged and corky and often split on dorsal side,showingnitrogen and boron deficiency symptoms.Affected trees blossom earlier and moreheavily than usual but bear few fruits.On badly affected trees fruits matureearlier but do not color well and are often deformed.Defoliation and root rottingbecome progressively serious as the disease advances.Young trees below 7 yearsof age generally are killed in 1 to 2 years or sooner.Nursery trees are killedeven more quickly.Older trees decline less rapidly but generally become unpro-ductive in about 2 years after the first symptoms appear. Nearly all the species and varieties of Citrus grown in the affected area aresusceptible.The order of degree of susceptibility is as follows: Ponkan,Chiaokan,Chachihkan,Lukan,Tungkan (all (C.reticulata),various varieties of sweet orange(C.sinensis),Hungninmeng (hybrid of C.lemon and C.rcticulata) Nienchu (C.rcticulata),Shangmayu (C.graudis) and Shihchichu (C.mitis). Studies of the cause of the disease will be reported in a later paper.

广东的潮汕区、新会县、番禺縣、广州市郊,福建的龍溪縣、福州市郊,和广西的柳城、融縣、兴業縣、郁林縣的柑桔类,都發生一种毁滅性的病害称为黄梢,或黄龍病。病区各种柑桔类的各品种一般都很易感染。其感病程度的次序大約如下:栟柑、蕉柑、茶枝柑、蘆柑、桶柑、各种甜橙、紅檸檬、年桔、桑麻柚及四季桔。用实生苗繁殖的福州紅桔及廣柑(橙),和福建龍溪的坪山柚及文旦柚,則未見發病。各齡的柑桔樹——自苗木至20齡以上的老樹——都能感染,一般以3—8齡的幼樹受害最烈?静〉闹饕钗跗诓糠中律业囊度烤然苹T谔鸪取薷毯徒陡躺嫌幸徊糠只苹蛘>G色的叶特别肥大或呈各种畸形狀态,有許多新梢簇生或束化。發病的枝条很快落叶。老枝上的叶有一部分亦黄化脫落。根系腐烂。至發病中期,新梢的叶多呈缺鋅或缺锰病狀,老叶呈缺氮及缺硼病狀,落叶及根腐更嚴重,开花早而多,結果少,部分枝条枯死。到后期,全株嚴重雕殘,終而枯死。本病在70—80年前在廣东潮汕区已有發现,但在近30年來始在各地蔓延成灾壳氨静≡诠愣鄙乔V州市郊及新会縣和福建龍溪縣已成为柑枯業發展的限制因素。

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。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关hybridⅲ(的内容
在知识搜索中查有关hybridⅲ(的内容
在数字搜索中查有关hybridⅲ(的内容
在概念知识元中查有关hybridⅲ(的内容
在学术趋势中查有关hybridⅲ(的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社