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   无性系 在 植物保护 分类中 的翻译结果: 查询用时:0.038秒
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无性系
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  clone
    A BC1 population derived from a artificially selected elite clone "Populusdeltoides Bartr. CL. 'Nankang1'" with borer properties back-cross with its maleparent as materials, by using the methods of bioassay and quantitative trait locus(QTLs), the chemical plant defense mechanism was studied in the erperiment.
    本文以经人工选育出对天牛具有抗性的优良美洲黑杨无性系一南抗杨1号(Populuf. deltoides Bartr.CL.‘Nankangl’)与其父本回交产生的回交一代(BC1)为实验材料,通过生物检定(Bioassay)和数量性状基因定位(Quantitative Trait Locus,QTLs)的方法,研究了植物的化学防御机理。
短句来源
    Preliminary Study on Using Helminthosporium Carbonum Toxin to Select the Resistant Cell Clone from the Haploid Embryonic Corn Cell Clones
    用玉米圆斑病菌毒素筛选抗病单倍体胚性细胞无性系研究初报
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    The five viewpoints were shown through systematical studies and reserches on the 12 clone and in 10 sits.
    通过10个点调查,12个无性系详查和系统观察,调查结果明确提出5个论点。
短句来源
    The control measures the authors proposed are as follows: establish superior clone orchards at the areas far away from natural forests, enhense tending of meternal plant stand, transform the structure of pure forests, protect and use natural enemies, strengthen the self-control ability of stands to pests, use 100 billions spore per litter 4% of Bt emulsion solution and Bt powder and talcum powder in the volume ration of 1:2 to spray to control the larva;
    试验认为 :在远离天然林分的地方建立优良性状的无性系种子园 ,并加强母树林抚育 ,改造纯林结构 ,保护利用天敌 ,增强林分对害虫的自控能力。 虫害中等区可利用Bt乳剂 10 0亿孢子 /mL质量分数为 4%的溶液喷雾和 10 0亿孢子 / g的Bt粉剂与滑石粉体积比为 1∶2混合喷粉防治幼虫。
短句来源
    A survey of blackspot disease and canker disease on 33 clones of Populus tomentosa,showed that the resistance to blackspot disease and canker disease was distinguished different among the clones ,clone No.
    对毛白杨 33个无性系黑斑病和溃疡病进行了调查 ,结果表明 ,毛白杨不同无性系对黑斑病和溃疡病的抗性有明显差异。
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  “无性系”译为未确定词的双语例句
    RAPD markers OPAI17-1550 and OPAI13-900,linked to anti-black-spot disease gene locus,were successfully converted into SCAR markers named SAI17-1570 and SAI13-292 respectively by sequencing and designing of primers. SAI17-1570 and SAI13292 were validated in the resistant、susceptible pools and F1 population.
    通过测序和引物设计,将与美洲黑杨抗黑斑病基因相连锁的RAPD标记OPAI17-1550和OPAI13-900成功地转化成显性SCAR标记(SAI17-1570)和共显性SCAR标记(SAI13-292),并对感、抗病池和F1代91个无性系进行了SCAR标记检测。
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    Meanwhile, a good regenerated someclone of wheat has been established by the combination of lower concentration KT with 2,4-D and sucrose.
    通过低浓度KT与2,4-D和蔗糖配合使用,筛选并建立了小麦体细胞再生无性系
短句来源
    The inheritance of mating types of Phytophthora drechsleri Tucker in S_1 and F_1 progenies, the separation of mating type of self-fertile single-oospore cultures (A_1 A_2) in sexual progeny from F_1 progeny, and the variation of mating types resulting from oospore treatment with KMnO_4 were studied.
    本研究以掘氏疫霉Phytophthora drechsleri Tucker野生型菌株的单游动孢子无性系为亲本,测定了自交、杂交后代交配型的遗传,经KMnO_4处理引起的交配型变异以及F_1代可自孕单卵孢株有性生殖后代交配型的遗传与变异。
短句来源
    SEM STUDIESON RICE SOMACL ONAL VARIANT LEAVESINOCULATED WITH XANTHOMONAS ORYZAE DOWSON
    白叶枯病菌侵染水稻体细胞无性系变异植株叶片的扫描电镜观察
短句来源
    Studies on the Disease-Resistant Adaptability of Prunus mumeClones Resistant to Fusicladium radiosum
    青梅抗黑星病无性系抗病适应性研究
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  clone
Results of clone formation and Flow cytometry analysis (FCAS) suggested that prodigiosin has the capability of restraining mitosis by regulating the cell cycle.
      
Effects of Cutting Density on Growth, Yield and Quality of Poplar Clone Seedlings
      
The results showed that, feeding on clone 7, the activity of esterase, carboxylesterase, and mixed-function oxidases in the midgut of the larvae was very much decreased.
      
Feeding on clone 10, those results were less than those of clone 7 and there were few changes on the larvae, which fed on clone 26.
      
However, the activities of glutathione S-transferase and proteinase were complex, increased markedly after 24 h feeding on clone 7, and then declined rapidly.
      
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The susceptibity of 12 clones of Casuarina equisetifolia taken from the diseased plantation on the coastal wind-break belts in South China was studied under controlled conditions after inoculation by Pseudomons solanace-rum. Various symptoms of the disease and different degrees of susceptibility were observed among these clones and some clones with lower percentage of infection Have preliminarily been obtained. There was a relationship in u significant degree between the susceptibility of the clones and the...

The susceptibity of 12 clones of Casuarina equisetifolia taken from the diseased plantation on the coastal wind-break belts in South China was studied under controlled conditions after inoculation by Pseudomons solanace-rum. Various symptoms of the disease and different degrees of susceptibility were observed among these clones and some clones with lower percentage of infection Have preliminarily been obtained. There was a relationship in u significant degree between the susceptibility of the clones and the relative permeability of the cell membrane and also the Rf valve of the fourth band of the peroxidase isoenzyme.

病区残存10年生以上的木麻黄(Casuarina equisetifolia Lin)不同无性系的幼苗经青枯假单胞菌(Pseudomonas solanacearum E.F.Smith)菌系SC—2人工接种后,发病症状可以划分为青枯、半枯、黄萎、枝枯四个类型;其对青枯病的抗性有差异,发病率较低的单株有3、11、15、19,和粗4,发病率较高的单株有1和2。用电导率方法测定各无性系幼苗的相对透性和用聚丙烯酰胺园盘凝胶电泳测定过氧化物酶同工酶的结果表明,细胞膜的相对透性和过氧化物酶同工酶的第4条谱带的比移值与植株感病率有一定的关系;过氧化物酶同工酶的谱带数和过氧化物酶的活性与感病率的关系不大。各无性系的过氧化物酶与相对透性之间也有一定的相关关系。

Five clones of Casuarina glauca Seid, 10 clones of C. equisetifolia Forest and 19 clones of their natural interspecific hybrids taken from the severely diseased platations on the cosst of South China have been screened for resistance against Pseudomonas solanarcearum E. F. Smith through inoculations with 3 known strains of the pathogen and by planting them in a heavily infested nursury. Four clones of interspecific hybrids are found highly resistant, comparatively faster and eract growing, and easily propagated...

Five clones of Casuarina glauca Seid, 10 clones of C. equisetifolia Forest and 19 clones of their natural interspecific hybrids taken from the severely diseased platations on the cosst of South China have been screened for resistance against Pseudomonas solanarcearum E. F. Smith through inoculations with 3 known strains of the pathogen and by planting them in a heavily infested nursury. Four clones of interspecific hybrids are found highly resistant, comparatively faster and eract growing, and easily propagated vegetatively for the purpose of clonal multiplication.

用室内盆栽接种后病圃栽植筛选的方法,对选自华南沿海青枯病病区的5个粗枝木麻黄,10个短枝木麻黄,19个杂种短粗木麻黄残留株无性系的抗病性进行了测定。结果表明木麻黄青枯病流行所需的天气条件与木麻黄生长条件相近,土壤条件的差异对植株的抗病影响不显著,华南地区已知的三个木麻黄青枯病菌菌系对木麻黄的致病性大致相等,不同的残留株苗所具有的抗性不同。综合考虑了残留株无性苗生长速度,挺直度和抗病性等项指标之后,选出了王_3、王_1、中长_4和电_(31)等4个生长较快、树干挺直、抗病性较强的短粗木麻黄优良品系,可供生产单位试用。

Several Hm-pathotoxin inductors were comparied.The extracts of free- zed diseased leaves and filtrates of improved Fries medium cultures were best while the methyl-alcohol and distilled water extracts of sorghum grain cultures were not so good.In order to prevent the role of Hm-patho- otoxin from being changing.It is better to preserve the isolstes of Hclmint- hozporiyn.mnydis to be used in induction studies in diseased leaves when improved Fries medium was used to cutture the Helminthosporium maydis it should...

Several Hm-pathotoxin inductors were comparied.The extracts of free- zed diseased leaves and filtrates of improved Fries medium cultures were best while the methyl-alcohol and distilled water extracts of sorghum grain cultures were not so good.In order to prevent the role of Hm-patho- otoxin from being changing.It is better to preserve the isolstes of Hclmint- hozporiyn.mnydis to be used in induction studies in diseased leaves when improved Fries medium was used to cutture the Helminthosporium maydis it should be shaken six times each day(1 hr interval 10min/time).The cul- tural filtrates of Helminthosporium muydis could be maintained six months at 5℃,and the role of Hm-pathotoxin was not affected after sterilizing 30 minutes in autoclave(121C,151bs)or boiling for concentraction.The best method to estimate tile role of Hm-pathotoxin was to germinatethe seeds and compared the growth of primary roots(?)The disease resistance of the pollen callus tissue and tuber-seedling could be tested by the method of fragment-paper with quantified conidia of the pathogen.

试验比较了几种致病毒素诱变剂,以病叶冰冻提取液和改良 Fries 培养滤液的效果最理想,高粱米粒培养物的甲醇和蒸馏水提取液效果不理想。为防止致病毒素作用变化、制备诱变剂的小斑病菌最好用病叶保存。用改良 Fries 培养液培养小斑病菌每天振荡六次,每隔1小时一次、每次10分钟。所制备的培养滤液在5℃下可贮存六个月、用高压灭菌器灭菌30分钟及煮沸浓缩均不影响致病毒素的作用。评价致病毒素作用以比较抑制种子根生长的种苗萌发包法效果最好。愈伤组织无性系和试管苗抗病性的测试可用定量孢子的纸片法。

 
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