查询词典 violet root rot

Root-derived organic carbon is composed of three compartments: root detritus, root eaudates and root symbionts, which represents a large important and potential C sink in forest ecosystems, The known responses of root derived organic carbon and heterotrophic microbes to elevated CO2 were reviewed. Overall, increases in root biomass, productivity, and exudation indicate an augmentation of C inputs into the soil via roots, although changes in root lifespan are still unclear and may modify this flux positively or negatively, Altogether, changes in root chemistry and morphology that may augment soil C storage under elevated CO2 include decreased N concentration and wider root diameter, Alternately, a shift in rooting depth upwards in the soil profile may increase average turnover rates of root detritus. Effects of CO2 concentration on C qualities of root exudates and root symbionts are the least understood components discussed here, Changes of soil heterotropic microbial activity and community under elevated CO2 still remained large uncertainties.

林木根源有机C包括根东通过根枯落物、根系分泌物和根共生菌周转3条途径向土壤输入的有机C，它是森林生态系统中一个重要的、潜在的C汇，综述了根源有机C与其微生物对CO2浓度升高的响应，虽然对根系寿命的变化尚不清楚，但CO2浓度升高将导致根系生物量、生产量、死亡量和分泌物的增加；同时，CO2升高亦促使根共生菌生物量的增加而增加了共生菌的C归还潜力，表明CO2升高使根源有机C的输入增加了，CO2农度升高情况下，根系化学性质和形态特征的这些变化均有利于增加土壤C的吸存；而根分布深度的降低则对土壤C吸存不利；CO2浓度升高对根分泌物和根共生菌质量的影响研究则极少，CO2浓度升高下土壤微生物活性和群落组成的变化存在较大的不确定性，目前CO2浓度升高下林木根源有机C对森林长期C吸存的贡献仍很不清楚。

The corn ear rot on 51 malze breeds which were made to national test in Sichuan was investigated in 2005.It showed that the rate of corn ear rot was 35.1%, corn ear rot by Fusarium moniliforme was one of the most important, which was counted for 49.1% in all rot ears investigated.In 2006, the corn ear rot on 12 maize breeds which have different genetic background was investigated again.

通过对2005年国家品种区试四川试点的51个玉米品系穗腐病的调查，结果表明，总的穗腐病发病率为23.2％，其中串珠镰刀菌性穗腐病占49.1％，是主要的玉米穗腐病。2006年8月，又对多营农场的不同遗传背景的12个玉米品系进行了调查，结果表明，总的穗腐病发病率为35.1％，其中串珠镰刀菌性穗腐病占77.1％，也是主要的玉米穗腐病。

Hairy roots were induced from tobacco leaves with Agrobacterium rhizogenes LBA1334 harboring agropin type PRil855 and binary vector PIG121HM carrying a kanamycin resistant gene nptll and GUS gene and the good hairy root clones were selected. The root with many root hairs and branches grew vigorously toward all the direction on MS medium without plant hormone and on kanamyain containing medium (km:30mg/L). The structure of the hairy root tip is different from that of ordinary root. Witch was not typical root cap maybe the main cause of losing the geotropism of hairy root. Plantlet regenerated from hairy root when cultured on Ms medium without plant hormone. The nicotine content of the hairy root was little higher than that in the natural roots.

本研究通过发根农杆菌工程菌LBA1334(含有野生型pRi1855质粒和pIG121HM双元载体质粒，编码NPTⅡ基因和GUS基因)转化烟草沙姆逊，获得了具有卡那霉素抗性烟草发状根，并筛选出良好的单克隆株系，该发状根具有典型的发状根特性(多根毛、多分支、在无激素培养基上快速生长)，通过根尖压片分析，烟草发状根不具备典型的根冠；发状根中烟碱含量1.61％稍高于与天然栽培品种母体根的含量(1.5％左右)，发状根向培养液中释放烟碱，释放量最多时占总烟碱量的81.1％；在无激素的培养基上获得了再生植株。

The root hair morphology of cv. RM109 was observed and compared. The results indicated that in the distance of 1 cm to the apical of seed root, the number of root hair of RM109 was 19% of cv. Oochikara, and the root diameters were not different from cv. Oochikara; in the distance of 8 cm, the number of root hair and the root diameters of RM109 were 45% and 79% of cv. Oochikara, in the distance of 3 cm, the length of the longest root hair was 33% of cv. Oochikara; but the length from the apical of the seed root to root hair initiation was not different.

根毛观察比较显示，距种子根根端1 cm处的RM109根毛数是&大力&品种的19%，差异极显著，根直径与&大力&品种差异不显著；距根端8 cm处的RM109根毛数和根直径分别是&大力&品种的45%和79%，二者差异极显著；距根端3 cm处，RM109最大根毛长是&大力&品种的33%，差异极显著；RM109种子根根端到根毛发生区的长度，与&大力&品种的差异不显著。

This article elaborated Dingxi in the pea root rot research and the disease- resistant breeding progress,introduced the Gansu middle area pea root rot s main pathogenic bacteria is the root-rot syndrome which the eggplant fusariumFusarium solani(Mars Sacc,the pea silk pouch mildew and so on eight kind of cause of disease fungi compound invade dye cause.

论述了定西在豌豆根腐病研究及抗病育种的进展，介绍了甘肃中部地区豌豆根腐病的主要致病菌是茄镰刀菌Fusarium solani(MarsSacc、豌豆丝囊霉等8种病原真菌复合侵染引起的根腐综合症；通过选育抗根腐病品种是解决问题最经济有效环保的措施，先后培育出了不同生态类型的豌豆品种定豌1号到定豌5号，基本解决了生产中因根腐病导致的减产、绝收现象，这些品种在甘肃中部、宁夏南部的旱地农业生产中发挥了重要作用。

Gentleman orchid drenchs rot the root dies after water, the likelihood has the reason of two respects, it is basin earth too wet, because gentleman Lan Xihuan is loose,understand the edaphic requirement that appear, once basin earth is medium moisture is too big, its bulky flesh pledges the root arrived to will come in October between November, already entered stop to grow or grow very slow condition, do not need how many moisture, need to hold basin ground only wet can, drench water causes those who rot the root is unavoidable too much; 2 it is you drench when water, flow into the phyllome center of plant the dirt that will have smudgy part along with all the others, and at this moment water of blade rising bad news is less, sewage accumulating is inside Xie Cong, also can choose sodden heart sodden root.

君子兰淋水后烂根死亡，可能有两个方面的原因，一是盆土过湿，因君子兰喜欢疏松通透的土壤条件，一旦盆土中水分过大，其粗大的肉质根到了10月至11月间，已进入停止生长或生长很慢的状态，不需要多少水分，只需要保持盆土湿润即可，淋水过多造成烂根是在所难免的；二是你淋水时，将会有脏污成分的尘土等一并流入植株的叶丛中心，而这时叶片蒸腾耗水较少，脏水积在叶丛内，也会选成烂心烂根。

On soil fungi, Fusarium root shell mold, Rhizoctonia, Pythium, Miao-rot fungus, Corticiumpathogens have a significant effect on the damping-off,diseases, damping-off, Fusarium wilt, Verticillium, Sclerotinia, Colletotrichum, disease, dry rot, scab, Sclerotinia rot, seedling blight, stem blight, leaf blight, steep root, even the special effects for the continuous cropping obstacles.

对土壤真菌、镰刀菌、根壳菌、丝核菌、腐霉菌、苗腐菌、伏革菌等病原菌都有显著的防治效对立枯病、烂秧病、猝倒病、枯萎病、黄萎病、菌核病、炭疽病、疫病、干腐病、黑星病、菌核软腐病、苗枯病、茎枯病、叶枯病、沤根、连作重茬障碍有特效。

In wood, three distinct types of fungal decay can be distinguished: white rot, brown rot, and soft rot (Eriksson et al., 1990). White rot fungi are the most abundant degraders of wood in nature. Their strategy is to decompose the lignin in wood so that they can gain access to the cellulose and hemicelluloses that are embedded in the lignin matrix.

在木材，三清楚的类型真菌的衰退可能是区别：白色的腐烂，褐色腐烂，和软的腐烂白色的腐烂真菌是最丰富的自然的木材他们的策略要分解木材的木质素以便他们能得到对纤维素的通路而且正在埋入的在木质素点阵式。

Among the bacterial isolated, B8 greatly inhibited rhizopus rot and brown rot, while Bw6 and Bw7 prevented brown rot and Bwl0 could also significantly inhibit rhizopus rot.

在分离的细菌中，B8对褐腐病和软腐病的抑制作用最好，Bw6和Bw7可抑制褐腐病的发生，Bwl0则对软腐病有显著的抑制作用。

The investigation of two years showed that corn ear rot by F.moniliforme was the dominant corn ear rot,and F.moniliforme was the major pathogen to corn ear rot. When the corn was harvested,the pathogen of the corn ear rot were isolated from diseased kernel in Duoying farm in Yaan, Sichuan.

玉米收获时，从雅安市多营农场采集患有典型症状的串珠镰刀菌性穗腐病的果穗，用患病病籽粒分离得到病原物，经过鉴定，确定其为串珠镰刀菌，作为本实验的实验菌株，冰箱保存备用。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。