The PO activities in the leaves of four baize varieties with different susceptibility to maize dwarf mosaic virus were tested within one week after the plants were inoculated with the virus.

玉米矮花葉病毒病是世界性危害玉米最重的病毒病害之一黄页网站大全免费视频在线观看，它給玉米生產(chǎn)造成很大的損失色黄色视频在线免。

The results indicated that the incidence of virus disease in processed tomato was 63%~91% from 2005 to 2006. The field symptoms had various disease symptoms including mosaic, leaf streak necrosis, fernbrake leaf and malformation, curl leaf and dwarf etc., but mainly mosaic and leaf streak necrosis with infectious frequencies of 78% and 37%, and leaf streak necrosis symptom with mosaic was above 90%.

結(jié)果表明：加工番茄病毒病害2005~2006年間各地發(fā)病率達63%~91%欧美一区观看，在田間主要表現(xiàn)為花葉午夜a一级毛片视频网站在线免费观看、條斑壞死国产又黄又湿又色的免费网站、蕨葉畸形欧洲无码在线免费、曲葉和矮化等多種病害癥狀，以花葉和壞死條斑為主欧美老妇交乱视频69式，其中花葉占78%亚洲日韩视频第一页，條斑占37%，并且條斑癥狀90%以上都伴有花葉癥狀欧美熟线视频免费精品。

Maize dwarf mosaic disease is one of major problems in corn growing area all over the world. The disease can cause great economic damage in some areas.

玉米矮花葉病是國內(nèi)外玉米產(chǎn)區(qū)分布最廣久久综合精品一区无码、為害最重的病害之一，常造成嚴重的經(jīng)濟損失亚日日日日日视频。

The aim of the study is to understand the effect of Tobacco etch virus on maize dwarf mosaic disease. In the net house, an experiment is carried out by means of artificial inoculation.

為了研究煙草蝕紋病毒(Tobacco etch virus欧美黄色网站视频， TEV)對玉米矮花葉病的預(yù)防效果，在防蟲網(wǎng)室內(nèi)偷拍自偷拍，采用人工摩擦接種病毒的方法進行生物學(xué)試驗日韩小视频在线，并用RT-PCR和實時熒光定量PCR技術(shù)對預(yù)防效果進行了檢測。

A review on maize dwarf mosaic disease is presented,including its symptom,distribution,damage,host range,viral strain,viral transmission and control method.

介紹了玉米矮花葉病的癥狀潮喷人人操、分布、危害三级片黄片日韩、寄主范圍视色视频免费在线观看、病毒株系、病毒傳播及防治方法等方面的研究進展亚洲国产福利精品一区在线观看。

The result shows that 11.34% of SCMV CP is left in the pre-inoculated maize 50 days later, which indicates that maize dwarf mosaic disease can be alleviated through this method.

說明日韩婬乱a一级毛片多女韩国A片，SCMV能夠有效地減輕玉米矮花葉病的發(fā)生及危害。

The main results were showed as follows:Through screen and identification of morphology in M_2 and M_3, respectively, the mutants with mutative traits of plant were found. In which, 11 mutations were leaf variations, including light-green leaf, deep-green leaf, durative yellowish leaf, temporary yellowish leaf, inlaid yellowish leaf, wrinkly leaf, smooth-edged curly leaf, splitting-shaped curly leaf, peduncular-shaped leaf, round leaf and larger leaf, 12 were mutations on plant type, including excessive branches, lacking branches, highness, dwarf-like, erect posture, reclinate posture, strong stalk, slender stalk, tufty branches, wrinkled plant, purple stalk and hair-covered plant, 14 were flower variations, including dense flowers, light-yellow petals, white petals, white-mosaic petals, wrinkled petales, back-rolled petals, narrow petals, larger petals, smaller petals, apetalous flowers, variable-numbered petals, fertile pistil protraction, sterile pistil protraction and multi-anther, and 5 were physiologic mutants, including genic male sterile, cytoplasmic male sterile, bud-dead, and early and later bloom.

主要結(jié)果如下：通過田間M_2篩選和M_3重復(fù)鑒定欧美大一片免费网站，在田間農(nóng)藝性狀方面共獲得淺綠葉色色伊伊综合久久桃花影院、深綠葉色、轉(zhuǎn)綠黃化葉三级片网站视频免费看、持續(xù)黃化葉青春草青、邊緣黃化葉、皺縮葉亚洲国产毛片在线看、光葉型卷葉国产精品看黄网站、裂葉型卷葉、薹葉形葉男人舔女人天堂网站、寬圓葉和大葉等11種不同的葉部性狀突變體黄色一区二区三区网站；同時還篩選到多分枝、少分枝黄色视频了88、高桿精品乱伦、矮桿91P0RN专干大屁股、株型緊湊、株型松散国产产精品亚洲一区二区在线观看、粗莖欧美性交网、細莖、叢生分枝亚洲免费一级免费看片、整株皺縮中文字幕视一区二区人妻、紫莖、整株被毛等12種植株性狀突變體国产精品色午夜快乐，密花欧美熟女性高潮视频、淺色花瓣、白色花瓣天堂AV综合久久天堂、白斑花瓣黄色视频在线三区、皺瓣、卷瓣免费.黄色.视频.网址、窄瓣内射亚洲美女视频在线搞、大瓣、小瓣手机在线久草、無瓣亚洲欧洲日韩在线一区二区三区、花瓣數(shù)目不定、可育型柱頭外露古伐一级婬片A片AAA毛片、不育型柱頭外露和多雄蕊等14種花器性狀突變體欧美男女一级黄色视频，以及細胞核雄性不育、細胞質(zhì)雄性不育午夜福利视频少妇直播网站、死蕾人人操人人高潮、早花和遲花等5種生理性狀突變體。

A total of 816 maize gemplasms were identified for resistance to maize dwarf mosaic virus and maize rough dwarf virus by natural infection in the field which is easy to be affect with the two diseases.

玉米矮花葉病和玉米粗縮病是近10年來為害我國玉米生產(chǎn)的兩種主要病毒病[1]色淫五月天。

A 1.8 kb fragment of 3' terminus of the viral RNA was amplified by RT PCR, cloned and its sequence was determined. Sequence comparisons showed that it shared 71.5%～99.1% homology with isolates of sugarcane mosaic virus, 67.8%～68.5% with sorghum mosaic virus and 38.4%～48.4% with maize dwarf mosaic virus, indicating that the pathogen of this disease on maize in Hangzhou was sugarcane mosaic virus.

病毒RNA13'端序列(1.8kb)與甘蔗花葉病毒同源性最高又粗又大又爽，達 71.5 %～ 99.1%，與高梁花葉病毒同源性次之一级特黄无费真人毛片，為 6 7.8%～ 6 8.5 %国产日韩欧美专区，與玉米矮花葉病毒同源性最低，僅為 38.4%～ 48.4%被操出白浆视频，從而初步認為此病害由SCMV引起大屌干屄视频。

The nearly full-length CP sequence of 308 aa of SCMV-NCH was compared with the counterpart of SCMV, Sorghum mosaic virus, Maize dwarf mosaic virus; Johnsongrass mosaic virus, Zea mosaic virus and Pennisetum mosaic virus, the six virus species in SCMV subgroup in Potyvirus, respectively. A high level of sequence homology (86.2%) was observed between SCMV-NCH and SCMV-A, while only 56.4% to 72.2% sequence homology was found between SCMV-NCH and the other five virus species.

與SCMV亞組SCMV、高粱花葉病毒91精品国产兔费观看久久、玉米矮花葉病毒青草草视频网、約翰遜草花葉病毒、玉米花葉病毒九九热欧美精品在线、白草花葉病毒等6種病毒代表性株系外殼蛋白氨基酸序列同源性比較結(jié)果顯示国内一级特黄大片录像，SCMV-NCH與SCMV的同源性最高(86.2%)99久久精品国产免看国产一区，與其他5種病毒同源性相對較低(56.4%~72.2%)。