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   感病 在 植物保护 分类中 的翻译结果: 查询用时:0.074秒
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感病     
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  susceptible
    A Comparative Study on the Variation of Peroxidase Isoenzyme in Seveval Susceptible Plants
    几种植物感病后过氧化物酶同工酶变化的比较研究
短句来源
    Induced-resistance effects were investigated after treated 7days on resistant cultivar and susceptible cultivar,and the results showed that the effective percentage was 30.43% and 21.21% respectively.
    处理7 d后SA在抗病品种和感病品种上表现出的诱抗效果分别达30.43%和21.21%。
短句来源
    With a F2 population derived from 66 ×A18 as materials,polymorphism between resistant and susceptible bulk of cucumber anthracnose were studied using BSA method and AFLP technology. A codominant AFLP marker,E24M48-251 bp/245 bp,was screened.
    以黄瓜抗炭疽病母本66和感炭疽病父本A18及其F2代分离群体为试材,采用BSA法和AFLP技术建立了对炭疽病的抗病组和感病组,AFLP引物组合E24M48在抗感组间表现多态性,且呈共显性。
短句来源
    While in same disease grade of the resistant and susceptible inbred lines,there was no obvious difference on RBSDV concentration(F=0.775,P=0.598).
    而相同病级的抗病、感病和中抗玉米自交系叶片内的RBSDV浓度无显著差异(F=0.775,P=0.598);
短句来源
    The results of this study showed that there were significant differences among the 9 lines,in which lines of 85198 and 203 were susceptible to bacterial wilt,whereas lines of 47254,51255,7585,and 85254 showed resistance to bacterial wilt.
    结果表明:这9个品系的抗性水平存在显著差异,85198和203为感病品系,47254,51255,7585和85254为抗病品系。
短句来源
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  susceptible ones
    Moreover, analysis of POD isoenzyme showed that the number of enzyme bands in resistant varieties varied directly with symptom of plant while in susceptible ones ,varied versely with it,especially mid- late period.
    同工酶谱分析表明:感病后,不同抗病品种的酶带数均增加,而感病品种各植株间过氧化物酶同工酶的变化与植株外部症状有差异,后期表现为病情越重,酶带数越少。
短句来源
    The result showed: chitosan contents and the activities of active-oxygen- related enzyme system of the resistant varieties were higher than those of the susceptible ones;
    结果表明:抗性品种的壳聚糖含量、H2O2相关酶系活性均高于感病品种,而H2O2含量感病品种高于抗病品种,且在取样时期内一直处于上升趋势。
短句来源
    In resistant lines,the constitutive expression of CH1 and CH2 was more strong and the accumulation of CH2 and CH3 in intercellular spaces was faster than in susceptible ones.
    在抗病品系中 ,CH1和CH2有较高的本底表达水平 ,且CH2和CH3在胞间积累的速度也明显快于感病品系。
短句来源
    There are 22 resistant varieties (accounting for 68.8%) and 10 susceptible ones (31.2%) among the 32 Rocketsalad varieties evaluated while there are 10 resistant varieties (accounting for 31.2%) and 22 susceptible ones ( 68.8%) among the 32 rapeseed varieties.
    所鉴定的32个芸芥品种中,抗病品种22个,占供试品种68.8%,感病品种10个,占供试品种31.2%,没有中感和高感品种。 所鉴定的32个甘蓝型油菜品种中,抗病品种10个,占供试品种的31.3%,感病品种22个,占供试品种的68.8%。
短句来源
    A comparison of the treatments with different salicylic acids concentrations indicated that the optimum concentration on the resistant varieties was 3mmol/L but the susceptible ones was 5mmol/L.
    不同的SA处理浓度相比较,抗(耐)病品种适宜浓度为3mmol/L,感病品种适宜浓度为5mmol/L。
短句来源
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  susceptible one
    The results that the phenylanine ammonia lyase ( PAL ) activity of 'T51A', a resistant cultivar, were stronger than its control ( CK ) while 'T9230', a susceptible one, is the same as its control ( CK ),when they were infected by Ralstonia Solanacearum.
    结果表明,受青枯菌侵染后,抗病品种T51A的苯丙氨酸解氨酶(PAL)活性高于对照,而感病品种T9230的却与对照一致;
短句来源
    L-1 and to the susceptible one was 5mmol?
    L-1,感病品种的最适宜浓度为5mmol?
短句来源
    (3)the impact of living cotton cells or its homogenate from resistant variety on the fungi is different from susceptible one.
    (3)耐病 (豫棉 8号 )或抗病品种 (中棉 12号 )的活组培细胞 R(或其细胞匀浆 )对真菌的影响不同于感病品种。
短句来源
    The activity of PAL in resistant cultivar increased faster and greater than that in susceptible one.
    但抗病品种的PAL酶活性在接种前的基础水平和接种后的上升速度及峰值均高于感病品种。
短句来源
    The peak of PAL, POD and PPO activity in resistant variety appeared later than it in susceptible one, but the activities of them in resistant variety was showed a higher level.
    毒素处理后,抗病和感病品种的PAL、POD和PPO活性增加,随着处理时间延长,其活性逐渐下降,抗病品种出现酶峰时间晚,且活性高于感病品种。
短句来源
更多       
  susceptible wheat
    On the susceptible wheat variety,the main factors of affecting the var-iaton of infection probability(IP)of powdery mildew(Erysiphe graminisf.sp,tritici) were the average air temperature(T)and relative humidity(RH).
    在感病的小麦品种上影响白粉病菌(Ery siphe graminis f.sp.tritici)侵染机率变化的主要因素是平均温度(T)和平均相对湿度(RH)。
短句来源
    After interaction between DON and susceptible wheat, some of electrophoresis bands disappeared. For Anhui 11, Yiningxiaomai, and Alondra's, Rf 0. 13 and Rf 0. 02 bands dlsappeared after 2 hours and 8 hours interactions respectively. Furthermore, Rf 0. 05 band for Alondra's and Anhui 11 disappeared after 8 hours interaction.
    结果显示,感病品种有多条谱带消失,如仪宁小麦、安徽11、Alondra's在处理2h后Rf0.13的条带消失,处理8h后Rf0.02条带消失,感病品种Alondra’s和安徽11在处理24h后Rf0.05的条带消失。
短句来源
    Thus they were designated as Ta_Cyp and Ta_MAH . The obvious expression differences could be observed between wheat_ H. villosa 6VS/6AL translocation line and susceptible wheat cultivar "Yangmai 5", implying that the two genes may be related with the resistance of wheat_ H. villosa 6VS/6AL translocation line to disease.
    经Northern杂交分析表明 ,这 2个基因在抗病的小麦_簇毛麦 6VS/ 6AL易位系及感病“扬麦 5号”中的表达水平有一定差异 ,因此推断这 2个基因有可能与小麦_簇毛麦 6VS/ 6AL易位系的抗病性相关。
短句来源
    Histopathological and ultrastructural studies on development of Puccinia recondita f.sp. tritici in a susceptible wheat cultivar
    小麦叶锈菌在感病寄主上发育的组织病理学和超微结构研究
短句来源
    The percentage and rate of conidia germin-ation on the leaf surface of resistant and susceptible wheat varietiesshowed no difference at the early stage of infection.
    在抗病的和感病的小麦叶片上,分生孢子的萌发率和萌发速度没有差异。
短句来源
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  susceptible
This paper considers an SIRS epidemic model that incorporates constant immigration rate, a general population-size dependent contact rate and proportional transfer rate from the infective class to susceptible class.
      
An improved susceptible-infected-susceptible (SIS) model in the local-world evolving network model is presented to study the epidemic spreading behavior with time delay, which is added into the infected phase.
      
Biocides should be introduced into systems susceptible to biocorrosion at the start of their exploitation, otherwise higher concentrations or synergistic compositions have to be used.
      
A microbial association in the culture medium averaging 106 yeast cells/l and 108 bacterial cells/l is more susceptible to technogenic impacts and seasonal fluctuations.
      
However, cells subjected to oxidative stress are significantly less susceptible to the reactivating effect as compared to their UV-irradiated or heated counterparts.
      
更多          
  susceptible ones
The contributions of Oro (Bt4and Bt7), Rio (Bt6), White Odessa (Bt1), and Florence (Bt3) to the resistant cultivars are significantly higher than their contributions to the susceptible ones.
      
Malathion-resistant planthoppers showed remarkably higher activity of the E7 band than the susceptible ones.
      
Resistant clones grew better than susceptible ones on more suitable hosts, e.g.
      
The most susceptible ones were Dactylis aschersoniana Graebner, Dactylis glomerata L., Dactylis glomerata spp.
      
Based on these insertions and deletions, a co-dominant STS marker of Vp-1B gene was developed and designated as Vp1B3, which in most cases could amplify either 845 or 569-bp fragment from the tolerant cultivars, and 652-bp from the susceptible ones.
      
更多          
  susceptible one
Compared with the susceptible one the resistant biotype had a greater intrinsic rate of increase at high temperature and a reduced propensity to form wings in response to a crowding stimulus.
      
The aphids' growth rates were much lower on the resistant cowpea lines than on the susceptible one, indicating strong antibiosis.
      
'4011' was a transgenic rice cultivar carrying a resistant gene to sheath blight, while 'Xiangzaoxian19' is a highly susceptible one.
      
Their sugar compositions revealed that neutral sugars were more abundant in the fragments released from the resistant plant than from the susceptible one, while the reverse was true for acidic residues.
      
flavus infection observed in the resistant genotype (Tex 6) compared with a susceptible one (B73).
      
更多          
  susceptible wheat
These relationships were compared with a commercial susceptible wheat Triticum aestivum L.
      
Aphids did not discriminate between resistant and susceptible wheat during the first 30 min of access to test leaves, but only 4 out of 25 aphids were still probing after eight hours on resistant Tm44.
      
Comparison of samples from undamaged and damaged susceptible wheat revealed changes in amino acid composition and an increase in levels of essential amino acids, indicating a nutritionally enhanced ingesta.
      
Crosses of the resistant line H-93-70 with the susceptible wheat Pané 247 and with a 7D/7Ag wheat/Agropyron substitution line were carried out and F2 kernels were obtained.
      
The fungus can produce two genetically distinct symptoms on leaves of susceptible wheat genotypes: tan necrosis (nec) and extensive chlorosis (chl).
      
更多          
  其他


High percentage of chlamydospore germination of Neovossia horrida (Tak.)P.& K.with abundant basidiospore production was obtained by placing moistenedspores in a Petri dish with limited supply of water,the dish-cover being inkedblue to insure a favordable light condition.Moistened spores applied on the sur-face of kernels of a growing rice head enclosed in a paraffin paper bag was alsofound to germinate by producing a very short basidium and a large number ofbasidiospores.It is,therefore,concluded that not only...

High percentage of chlamydospore germination of Neovossia horrida (Tak.)P.& K.with abundant basidiospore production was obtained by placing moistenedspores in a Petri dish with limited supply of water,the dish-cover being inkedblue to insure a favordable light condition.Moistened spores applied on the sur-face of kernels of a growing rice head enclosed in a paraffin paper bag was alsofound to germinate by producing a very short basidium and a large number ofbasidiospores.It is,therefore,concluded that not only light but also oxygen isrequired for normal germination of the spores of the rice kernel smut. Results of a series of inoculation experiments conclusively show that thefungus infects rice kernels during the milky dough stage.Basidiospore inoculationgives higher percentage of infection than chlamydospore inoculation. Field observation indicates that the incidence of high percentage of infectionis coincident with the excessive application of nitrogenous fertilizer.Fluctuationof the amount of infection from year to year is probably determined chiefly by theduration of high moisture period from heading to dough stage.There are someevidences of varietal difference in the susceptibility of rice to the kernel smut.

(一)稻粒黑穗病菌厚垣孢子的正常萌发,在外界环境條件的關係上,不僅要求一定的光照,而且需有充分的氧氣供給。至於對水分的要求,只要空氣中?窒喈敐穸?已足供萌发的需要,不一定要有水滴的經常存在。(二)接種試驗證明病原係在水稻的灌漿期侵入種实。在自然界中,這種侵染顯然是通過氣流傳播而實现的。但種子與土壤所荷带的病原菌厚垣孢子,都是侵染的來源。(三)过量的氮素肥料,與高的稻粒黑穗病感染率有密切的關係。(四)稻粒黑穗病发生程度的年份间差異可能主要是决定於抽穗至乳熟期的高濕度的持續時間。(五)初步調查的資料表示水稻品種间具有顯著的感病性差別。

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。

Among collections chiefly from North China,different races of Pucciniaglumarum were identified by means of differential hosts used by Gassner & Straibor a set of improved varieties of wheat grown in China. Among 14 improved varieties,marked differences in resistance to stripe rustwere observed.Li-Yung I was resistant to 40 out of 50 collections of striperust,with unstable reactions to 7 collections; Nanking 4197 was resistant to 37 ??collections with unstable reactions to 9 collections; while Yechao 35368 and...

Among collections chiefly from North China,different races of Pucciniaglumarum were identified by means of differential hosts used by Gassner & Straibor a set of improved varieties of wheat grown in China. Among 14 improved varieties,marked differences in resistance to stripe rustwere observed.Li-Yung I was resistant to 40 out of 50 collections of striperust,with unstable reactions to 7 collections; Nanking 4197 was resistant to 37 ??collections with unstable reactions to 9 collections; while Yechao 35368 and Ye-Ta 1885 were susceptible to all except 5 collections from FJymus ckinense.Theinstability of varietal reactions is one of the principal obstacles in identification.As a consequence,tests with 6 improved varieties including Early Premium,Pi-Ma 1,etc.,only 21 out of 50 stripe rust collections could be differentiated into10 distinctly different races (Y 1 to Y10).However,there were great differencesin pathogenicity among different races so far identified.All the 6 improvedvarieties were resistant to race Y 1 and susceptible to race Y 2.The virulenceof other races differed from one another also pronouncedly. Races Y2,Y3,Y4,Y5 ,Y6,Y7 ,and Y8 were collected from wheat; Y 9 andY10 from Agropyron spp.; and Y1 was collected mainly from Elymus chinense(including 1 collection from wheat).Races Y 1,Y 3.Y 4,Y 5,Y 7,Y 8,Y 9,Y 10were found in Hopeh; Y 1,Y 2,Y 6,Y 7 in Shansi; and Y 6 in Shantung. All collections could be readily grouped into 16 different forms if the highestreaction type was taken as a basis for identification (this method of groupingwas adopted by Fang et al).Comparing the results with that of Fang et al,itappeared that reactions of certain varieties,such as Early Premium,Li-Yung 1 tocollections from North China were distinctly different from their reactions tocollections from East China.This suggested strongly that races of stripe rustorganism between these two regions might be quite different. All wheat varieties tested were found to be resistant to stripe rust collectionsfrom Elymus chinense.whereas collections from Elymus sibiricus and Agropyronspp.were capable of attacking many wheat varieties. Single spore infection of stripe rust frequently resulted in sporulation on thewhole leaf blade.This is definitely much more systemic than infections of eitherstem rust or leaf rust organism.Inoculations with single uredospores and mono-uredospore lines often produced mixtures of infection types ranging from resistantto susceptible on same leaf blades.This is analogous to "X" type reactions re-ported in stem rust and leaf rust literature; therefore,"X" type reaction shouldalso be recognized in the study of stripe rust.

1950年以来自华北以及少数其他地区搜集的条銹菌种,不論在Gassner和Straib所用的鑒定寄主或在国內推广品种上鑒定,都可区分出許多不同的类型。所用14个推广品种对于这些条绣菌种的抗病性有着很大的差別;其中以驪英1号最抗病,对50个菌种中的40个菌种是抵抗的,对7个菌种反应不稳定;金大4197次之,对37个菌种是抵抗的,9个菌种反映不稳定;燕交35368及燕大1885除了对5个碱草(Elymus chin-ense)条銹菌种抵抗外,对其他所有菌种的反应都是感染型。品种反应的不稳定,是鑒定工作中的主要困难。加根据早洋麦、农大3号、碧螞1号、碧螞4号、驪英3号、玉皮麦等6个品种的稳定反应加以分析,仅能將50个菌种中的21个区分成10个显著不同的类型。这6个品种对第一类型均为抵抗,对第二类型均为感染,其他类型的致病力介于二者之間。在这10个类型中,类型Y_2,Y_3,Y_4,Y_5,Y_6,Y_7,Y_8采自小麦;类型Y_9,Y_(10)采自Agropyron spp.;类型Y_1主要采自Elymuschinense(包括一个小麦菌种)。河北出現的类型有Y_1,Y_3,Y_4,Y_5,Y_7,Y_8,Y_9,...

1950年以来自华北以及少数其他地区搜集的条銹菌种,不論在Gassner和Straib所用的鑒定寄主或在国內推广品种上鑒定,都可区分出許多不同的类型。所用14个推广品种对于这些条绣菌种的抗病性有着很大的差別;其中以驪英1号最抗病,对50个菌种中的40个菌种是抵抗的,对7个菌种反应不稳定;金大4197次之,对37个菌种是抵抗的,9个菌种反映不稳定;燕交35368及燕大1885除了对5个碱草(Elymus chin-ense)条銹菌种抵抗外,对其他所有菌种的反应都是感染型。品种反应的不稳定,是鑒定工作中的主要困难。加根据早洋麦、农大3号、碧螞1号、碧螞4号、驪英3号、玉皮麦等6个品种的稳定反应加以分析,仅能將50个菌种中的21个区分成10个显著不同的类型。这6个品种对第一类型均为抵抗,对第二类型均为感染,其他类型的致病力介于二者之間。在这10个类型中,类型Y_2,Y_3,Y_4,Y_5,Y_6,Y_7,Y_8采自小麦;类型Y_9,Y_(10)采自Agropyron spp.;类型Y_1主要采自Elymuschinense(包括一个小麦菌种)。河北出現的类型有Y_1,Y_3,Y_4,Y_5,Y_7,Y_8,Y_9,Y_(10);山西出現有类型Y_1,Y_2,Y_6,Y_7;山东出現有类型Y_6。品种不稳定反应除通过选擇反应較为稳定的品种来克服外,同时还須严格掌握温室条件。如以品种的最高反应为标准(如方中达、陈迺用所采用),則可將上面50个菌种分成16个不同的类型。与华东的結果比較,許多品种如早洋麦、驪英1号等对兩个地区条銹病菌的反应适相反,表明华东和华北条锈菌的致病力可能有很大的差別。Elymus chinense的条銹菌与小麦条绣菌的致病力有極大差异,所测定的小麦品种对前者均抵抗。Elymus sibiricus和Agropyron spp.的条绣菌則能正常侵染多种小麦品种的幼苗。条銹菌在小麦叶片內能适当的扩展,較秆銹菌和叶銹菌更有系統性,單孢子接种約在二星期左右可蔓延到整个叶片。同一叶片上常出現抗病和感病的反应,用單孢及單孢菌系接种,得出同样結果。条绣菌的鑒定标准中除了原有的反应型外,还应加入混合型“X”一項。

 
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