Tobacco ringspot virus is the type species of the nepovirus genus, is the pathogenic agent of the disease the important economic crop as legume, melons, flowers, fruit trees and tobacco, induces many types of plant disease.
烟草环斑病毒(Tobacco ringspot virus，TRSV)是豇豆花叶病毒科线虫传多面体病毒属的代表种，由Fromme、Wing-ard和Priode1927年在美国弗吉尼亚烟草上首次发现并报道。
In this table, dinitrogen fixation ranges from as little as 3 to 237 kg N ha-1 and the proportion of total N the legume crop derives from BNF ranges from 16% to nearly 100%.
在该表中，固氮量从3到237kg/hm2，占豆科作物总氮量的16%到几乎100%。
The contribution of SOC content under the different crop is as follow from high to low in turn: cole plot, legume plot, general corn plot, corn plot of making seed, wheat plot.
随着耕作时间的增加，是剖面上土壤有机碳含量增加的过程，呈现老地＞新地＞荒地；不同作物类型下土壤有机碳含量由高到低依次为：油菜地＞豆类作物地＞一般玉米地＞制种玉米地＞小麦地、棉花地、大麦地。
Recent experiments have shown that Lipo-chitinoligosaccharides (LCO) have a wide range of effects on both legume and non-legume crop plants.
最新研究表明几丁质酯寡糖穴LCO雪对于豆科和非豆科植物有着广泛的作用。
This bean is one of the oldest cultivated crops and a traditional edible legume crop in China and in East Asia, with high seed protein but low fat contents.
小豆种子营养丰富，高蛋白、低脂肪，并具药用价值，是我国传统的药食兼用的食用豆类作物之一。
Legume-based crop rotations are common in traditional agriculture to build up nitrogen reserves in the soil. Shifting cultivation, a practice by which an area is cleared and farmed and then, as yields decrease, a new area is cleared, is another traditional method of agriculture commonly practiced.
以豆科植物为基础的轮作是传统农业中常用的增加土壤中氮贮存的方法，轮垦，烧垦是指一块土地被开垦种植产量下降时，由开垦一块新的土地，这种方法是传统农业另一项常用的措施。
So the information from M. truncatula can be used for the other legume species, this is very important to excavate genetic resources of leguminous plant our country and improve the breeding of the crop legume species and alfalfa.
因而从蒺藜苜蓿获得的信息可以用于其它豆科植物，这对于挖掘我国豆科植物遗传资源，促进豆类作物和苜蓿等牧草的育种有重要意义。
M. truncatula have the genetic comparability with the mostly crop legume species, especially M. truncatula and alfalfa are the closely relative crop species and their genome have highly homology.
蒺藜苜蓿与大部分豆科植物（紫花苜蓿、大豆、豌豆、三叶草等）具有遗传上的相似性，尤其与紫花苜蓿亲缘关系很近，与其基因组具有很高的同源性。
Common bean was introduced to China from the Americas in the fifteenth century and presently constitute an important food legume crop in many areas of China.
普通菜豆于15世纪从美洲直接引入中国，作为重要的食用豆类作物之一，在我国的许多地区广泛种植。