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rot resistance
相关语句
  腐病抗性
    Evaluation on Root Rot Resistance of Wheat Germplasm
    小麦种质资源根腐病抗性鉴定
短句来源
    Tagging and Mapping of Maize (Zea mays L.) Stalk Rot Resistance Gene (caused by Pythium inflatum Malthews) with Molecular Markers
    玉米肿囊腐霉茎基腐病抗性基因的分子标记研究及其初步定位
短句来源
    In this study, a F2 population was derived from a cross of 1145 >( Y33 1, 1145 is the resistant parent, and Y33 I is the sensitive parent. Maize stalk rot pathogeny is Pythium inflatum Malthews. By the use of RAPD combined with the BSA (bulk segregation analysis), the markers linked with the maize stalk rot resistance gene (caused by Pythium inflatum Malthews) were found. The results as follows:
    应用RAPD标记技术,结合集群分离分析的方法(BSA)寻找与玉米肿囊腐霉茎基腐病抗性基因连锁的分子标记。 主要结果如下:1、选取Operon公司的Kit A-Z共520个10bp碱基的随机引物对亲本和
短句来源
    5. ln this study, the maize stalk rot resistance gene (caused by Pythiumipfialum Malthews) was maPped and named RPii gene.
    连锁,因此也必定位于第4染色体上。 5、本文首次命名玉米肿囊腐霉茎基腐病抗性基因,为Rpil基因,并完成
短句来源
    A set of quite perfect disease-resistance evaluation method was used to evaluate root rot resistance of 719 wheat accessions in field condition. The data showed that there was great difference among entries and the growth duration of resistant materials was 5~7days late than susceptible ones.
    应用一套比较完善的田间抗病性鉴定方法,对719份小麦种质进行了根腐病抗性鉴定,通过鉴定种质间有明显差异,抗病材料一般比感病材料发病和枯死都晚5~7 d。
短句来源
  “rot resistance”译为未确定词的双语例句
    XUSHU 18-A NEW HIGH-YIELD SWEET POTATO VARIETY WITH FUSARIUM ROOT ROT RESISTANCE
    高产高抗根腐病甘薯新品种“徐薯18”的选育
短句来源
    QTL analysis was performed using joint composite interval mapping. In Ya'an,six QTL conferring Fusarium moniliforme ear rot resistance on chromosomes 2,3,4,6,and 9 were detected and explained 8.3%25.7 % of the phenotypic variance;
    在雅安检测到位于第2、3、4、6和9染色体上的抗病QTL 6个,解释表型变异的8.3%-25.7%;
短句来源
    Root Rot Resistance Effect of Sugarbeet Variety HM1631
    甜菜品种HM1631抗根腐病表现
短句来源
    OPZ19 werefound to be linked with the maize stalk rot resistance gene(Rpil).
    OPU10、OPU16、OPZ19。
短句来源
    The root rot resistance was superior to the control variety,the leaf spot disease,virus yellow disease and powdery mildew disease were similar to the control variety.
    对根腐病的抗性明显优于对照品种,对褐斑病、黄化毒病和白粉病的抗性与对照品种相当。
短句来源
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  rot resistance
Some of the foamed composites prepared in this work bear a remarkable resemblance to wood, a natural fiber reinforced foam composite, but with the advantages of flame and rot resistance.
      
At this stage the difference between the three fibre systems in rot resistance becomes slight.
      
Each fibre system suffers little microbiological degradation, thereby showing high rot resistance, when the respective oxy-fibres are modified by P-F treatment and also by vinyl grafting in a subsequent step.
      
High rot resistance (80-90% retention of tensile strength after soil burial test) and dye fixation (%) of as high as 86% were readily obtained for grafted jute fibres.
      
Percentage grafting, tenacity (g denier-1), dye fixation (%) and rot resistance (expressed as percentage retention of tensile strength of the fibre after a standard soil burial test) were evaluated and analysed.
      
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The salted Chinese cabbage is a special type for salting processes of the Pak-Choi Chinese cabbage. Four representative varieties from the lower valley of Yangtze-Hwai river, i. e., Nanking Kao-Zhuon, Hanchow Pio-Keng-Bai, Kaochun Ma-Er-Dor and Yanchow Hwa-Yi-Da-Tsai, were chosen for a diallel crossing experiment according to Griffing's method one (model 1). The field experiments were held in Nanking in 1974 and in Nanking and Yanchow respectively in 1975.1. Generally, the yield, downy mildew-resistance,...

The salted Chinese cabbage is a special type for salting processes of the Pak-Choi Chinese cabbage. Four representative varieties from the lower valley of Yangtze-Hwai river, i. e., Nanking Kao-Zhuon, Hanchow Pio-Keng-Bai, Kaochun Ma-Er-Dor and Yanchow Hwa-Yi-Da-Tsai, were chosen for a diallel crossing experiment according to Griffing's method one (model 1). The field experiments were held in Nanking in 1974 and in Nanking and Yanchow respectively in 1975.1. Generally, the yield, downy mildew-resistance, virus-resistance and bacterial soft rot-resistance of the salted Chinese cabbage F1 all show the mid-type of their parents, and no significant differences between each pair of reciprocals. There are some crosses with heterosis and some with reciprocal effect, but some are not consistent between different years or locations. After comparison, Kao × Pio (of entire leaf type with white flat petiole), was selected for Nanking region, and Pio X Hwa and Hwa × Kao (of deeply flaky leaf type with white round petiole), for Zhangkian-Yanchow region because of their moderate disease-resistance and high yielding ability by transgressing upper parent 20.1-22.1%, 12.7-21.6% and 6.0-31.3% respectively.2. As for yield the significance of g.c.a. and of s.c.a. are consistent between two years, but the reciprocal effectsare not. There are greater and shifting s.c.a. for Kao and Pio, greater g.c.a. and stable s.c.a. for Hwa. These three varieties are all better parents, when used in crossing the reciprocal effect should not be neglected.3. In yield component of three selected crosses there are significant s.c.a. and r for Kao ×Pio and r for Pio×Hwa, but not for Hwa × Kao besides the significant g.c.a. for them. The g.c.a., s.c.a. and r all should not be neglected in the design of crossing because of different crosses having their own specialities.4. The estimates of heritability for yield in broad sense are about 76.7-81.7% indicating the possibility of high yielding crosses to be persistent from year to year.

本文旨在分析江淮下游酶白菜代表品种的杂种优势与配合力。产量、抗病性的杂种优势因组合、正反交而异。有些组合的表现还因年份、地点等环境条件而不同。评选出优势强而稳的高×瓢、瓢×花、花×高组合可供生产应用。亲本间在一般配合力、特殊配合力以及它们的波动程度上都有各自的特点,选配组合时对一般配合力、特殊配合力以及正反交效应都需注意。产量杂种优势利用的广义遗传力估计值为76.7—81.7%。

The peanut rotting-pod rate in different cultivars has evident genetic variation .The result of this experiment showed that the rotting-pod rate of F1 was closely related to parents.If both parents were susceptable to the disease, the hybrid F1 was also susceptable.If one parent was susceptable and the other resistant, the rotting rate of hybrid F1 would show in the middle of parents.The heritability ( h2 ) of resistance to rotting pod was low (range from 0.1531 to 0.4177), which...

The peanut rotting-pod rate in different cultivars has evident genetic variation .The result of this experiment showed that the rotting-pod rate of F1 was closely related to parents.If both parents were susceptable to the disease, the hybrid F1 was also susceptable.If one parent was susceptable and the other resistant, the rotting rate of hybrid F1 would show in the middle of parents.The heritability ( h2 ) of resistance to rotting pod was low (range from 0.1531 to 0.4177), which revealed that rotting resistance was a quantitatively related to polygenes.

在不同花生品种之间,烂果率存在着明显的遗传差异。试验表明烂果率的高低与杂种的亲本密切相关。如果双亲均为易烂果品种,则杂种F_1也易烂果。如果双亲之中有一个亲本为易烂果品种,另一方为抗烂果品种,则杂种的烂果率一般介于双亲之间。烂果率的遗传力不高(变动于0.1531到0.4177之间),这表明烂果率是一种数量性状,可能受控于微效基因。

The desease resistant inbred line-Dian11Htl was derived from the hybrid of inbred Diangu11A which is susceptible to Northern Leaf Blight(NLB)seriously(as female)and ROH43Htl whichhas single major resistant gene to NLB(as male)crossed in 1979 in the crop Breeding Institute ofHAAS.The desease resistant gene had been transferred into Dian11Htl by backcrossing,selfing and testcrossins between 1980 and 1988 in 8 generations.According to the identirication of artificial inoculation in the NLB influence years,the deseasegrade...

The desease resistant inbred line-Dian11Htl was derived from the hybrid of inbred Diangu11A which is susceptible to Northern Leaf Blight(NLB)seriously(as female)and ROH43Htl whichhas single major resistant gene to NLB(as male)crossed in 1979 in the crop Breeding Institute ofHAAS.The desease resistant gene had been transferred into Dian11Htl by backcrossing,selfing and testcrossins between 1980 and 1988 in 8 generations.According to the identirication of artificial inoculation in the NLB influence years,the deseasegrade of Dian11Htl was 0.8,3.5grade less than that of Diangu11A; combining ability increased 4.3~13.3 %;stalk rot and lodging resistance improved ; plant and ear height,head smut resistance and othercharacters of ear were similar or better than those of DiangullA;but mature Period delayed3~4days.Since Dian11Htl was produced in 1988,the desease resistance to NLB of all the hybrids which have theparent DiangullA have been improved. For example,LongFuyu No.1,LongDan No. land 5 etc. havebecome desease resistance hybrids to NLB.The NLB,stalk rot resistance and yield of the improved hybrids were all higher than their former ones in the plot trial,exhibition and commerci31 production inHeilongjiang province.

抗病甸11是黑龙江省农科院育种所,于1979年用原甸骨11A(重感玉米大斑病系)做母本,以单基因抗源ROH43Htl为父本杂交后,于1980~1988年先后经8个世代的回交、自交、测配转育而成。该系对玉米大斑病表现为单基因抗病,经流行年份人工接菌鉴定,平均发病级为0.8级,比原甸骨11A病级降低3.5级,杂交配合力较改良前提高4.3~13.3%,抗茎腐病、抗倒伏力明显增强;次生果穗多,雄花分枝特少等不良吐状得到很好改良;株高、穗位、抗丝黑穗病力以及果穗其它性状均与原甸骨11A基本相似或略好,但成熟期延长3~4天。自1988年正式繁育生产后,凡含有原甸骨11A亲本的组合抗病性都逐步开始得到改良。例如龙辐玉1号、龙单1号、龙单5号等杂交种都已先后配成抗病组合,经全省各地试验、示范和生产应用,均表现抗大斑病和茎腐病,而且产量也较原杂交种有所提高。

 
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