查询词典 wheat bug

Nested PCR analysis and southern hybridization analysis showed that no polymorphism between H.villosa, Pm97034 and susceptible parent Wan7 107 was detected with the clones from 6VS arm, whereas three clones from H.villosa genome DNA: RH42, RH55, and RH66 showed polymorphism. RGA6 cloned from H.villosa genome DNA was characterized identity to NBS, and show high homology to resistance genes as RPM1 and RPP13 in Arabiadopsis, LRR19 in wheat, and I2C-1 in tomato.cDNA library constructed from T.aestivum-H.villosa translocation line Pm97034 was screened by hybridization with RGA6. Four positive cDNA clones were obtained. R3-2-2 showing 60-90% identity with eukaryotic sulfite oxidases contained an open reading frame of 647bp encoding 140 amino acid, and contained a conserved Moco-dimer domain in the ORF. R6-2-2 showed an ORF containing an Euk-porin domain of 279aa with 20-40% identity to the eukaryotic voltage-dependent anion channel proteins. R8-1-1 showed a complete ORF of 1810bp encoding 493aa with 80-90% identity to plant catalases. R9-1-1 showed an ORF containing a BTB/POZ conserved domain of 204aa with 30-70% identity to pox virus and zinc finger proteins. R3-2-2 and R9-1-1 were the first cDNA clones containingconserved domain of SO and POZ respectively isolated from wheat. R8-1-1 contained a complete ORF with 81% identity to Cat-3. Aspects of the role of R8-1-1 may be same with Cat-3, and it would offer the opportunity for improvement of stress tolerance of wheat.

以RGA6为探针，筛选用抗白粉病小麦—簇毛麦易位系Pm97034构建的cDNA文库，得到了4个阳性克隆。R3-2-2与动植物的亚硫酸氧化酶(sulfite oxidase，SO)有60～90％的同源性，长度为647bp，编码140个氨基酸，具有开放阅读框并含有保守域Moco-dimer.R6-2-2与真核生物的VDAC(voltage-dependent anion chennel)蛋白有20～40％的同源性，长度为1047bp，编码279aa，是一个不完整的开放阅读框，预测结构具有Euk-porin结构域。R8-1-1与植物中已经克隆的过氧化氢酶有80～90％的同源性，长度为1810bp，编码493aa，具有完整的开放阅读框和过氧化氢氧化酶保守域。R9-1-1与动植物的POZ(pox virus and zinc finger protein)蛋白有30～70％的同源性，长度为1446bp，具有开放阅读框和BTB／POZ保守域。R3-2-2与R9-1-1是首次从小麦中克隆到的具有SO和POZ保守域的cDNA序列。R8-1-1具有完整的开放阅读框，与玉米Cat-3基因具有81％同源性，预测R8-1-1可能具有与Cat-3类似的功能，可为转基因小麦抗逆育种提供新的基因。

The leaf esterase,endosperm esterase, root esterase and coleoptile esterase zymogram phenotypes in Set II alien addition Lines of wheat-wheatgrass, octoploids of wheat-wheatgrass, common wheat and wheatgrass were analyzed.

本文分析了小冰麦异附加系列II、八倍体小冰麦、普通小麦和天兰冰草的叶片酯酶、胚乳酯酶、根酯酶和胚芽鞘酯酶和酶谱表型。

The results showed that the wheat-straw powder had little reinforcing effect on NR,but had good filling effect;when the wheat-straw powder was modified by sodium hydroxide solution,silane coupling agent KH-550 or its solution,the physical properties of wheat-straw powder/NR composite were improved;the silane coupling agent KH-550 solution possessed better modifying effect.

结果表明，小麦秸秆粉末对NR无明显补强作用，但具有良好的填充作用；采用氢氧化钠溶液、硅烷偶联剂KH-550或其水溶液对小麦秸秆粉末进行表面处理，均可改善复合材料的物理性能，其中硅烷偶联剂KH-550水溶液的效果较好。

In this research, we employed 260 wheat cultivars selected from the different wheat-growing areas in China to be as materials for identifying vernalization gene loci of Vrn-A1, Vrn-B1, Vrn-D1 and Vrn-B3 by using STS markers and by field growth examination together, in order to make clear the effects of growth habit in wheat on dominant-recessive regarding four vernalization gene locus.

本文选取来自中国各麦区的260份小麦品种，用STS标记对其Vrn-A1、Vrn-B1、Vrn-D1和Vrn-B3四个春化基因位点进行检测，并结合小麦田间生长情况记录，探讨春化基因的4个位点显隐性情况对品种冬春性的影响。

Based on the framework of wheat morphology visualization, the 3D geometric modeling technologies of wheat organs were investigated, and the organ geometrical models were developed with characteristic architecture parameters. The model included three submodels: leaf geometry, stem geometry and wheat spike geometry submodels.

本研究以小麦作物为对象，在提出小麦形态可视化技术框架的基础上，首先研究了小麦不同器官的三维几何建模技术，构建了基于器官形态特征参数的几何模型，包括叶、茎秆和麦穗几何模型。

Experiments is located at Yucheng Comprehensive Experimental Station, Chinese Academy of Sciences, Yuchen County, Shandong Province (Latitude: 36°57′N, Longitude: 116°36′E, and Altitude: 20m) in 2000～2001 and 2001～2002 winter wheat growing seasons. Mainly observed factors under sprinkler irrigation and surface irrigation conditions include (1) dry and wet bulb temperature and wind speed at four heights, radiation, soil temperature and water surface evaporation of 20cm standard pan on the top of canopy;(2) winter wheat tillering, stem height, leaf area, biomass and yield; and (3) soil water content and winter wheat evapotranspiration.

实验在中国科学院禹城综合试验站进行，主要观测内容包括：（1）喷灌和地面灌溉条件下近地面不同高度处的温度和湿度、辐射、地温和冠层顶部水面蒸发量等农田小气候要素；（2）叶面积、生物量和产量等作物生长要素；（3）土壤水分变化过程、农田蒸发过程和冬小麦耗水量等要素。

At last,PCR detection techniques to another three important diseases(wheat sheath blight,wheat loose smut and wheat scab) were studied.

此外，还研究了针对另三种重要小麦病害(纹枯病、散黑穗病和赤霉病)的PCR检测技术。

In recent years, wheat scab at each wheat planting region of Qinghai all have occurrence of different degrees and which has become one significant disease of Qinghai spring wheat production.

近年来，小麦赤霉病在青海各春小麦种植区均有不同程度的发生，已成为青海春小麦生产上重要病害之一。

China has a vast territory, wheat cultivation in the region covered with different eco-climatic zones, wheat production is faced with a variety of disaster risk, including the occurrence of the prevention and control of wheat scab is an important high-quality high-yield component.

我国幅员辽阔，小麦种植区域覆盖着不同生态气候区，小麦生产面临着多种灾害风险，其中小麦赤霉病的发生防控是优质高产的重要组成部分。

As a result of the joint test experiment conducted by the Wheat Scab Disease Research Cooperation Team in China of 1981, 13 wheat strains bred in our college were considered to be the most prospective among 30,000 wheat germplasm collections.

本文概述了60085等13个小麦抗赤霉病新品系的选育经过、鉴定结果及其利用价值。这些新品系于1981年经全国小麦赤霉病研究协作组联合鉴定，在3万多份品种资源材料中抗病性表现突出。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。