【慢速VOA】２００８-１１-２４
Growing Crops With Less Water (2/2) ( 本次听写约176词 )[下载今日慢速VOA听力资料mp3版] (右键另存为)
本听写稿由plasma听写，来自沪江VOA听写系统
The Agriculture Department has the a soybean germ class germplasm（胚质） collection, the a collection of genetic material passed from one generation to the next. Members of team DROUGHT study Team Drought studied more than 2,500 examples from the collection.
They look looked at once ones from the ancient* ancestral（祖先的） home of soybeans, Asia. They searched for germ * germplasms that could keep plants from weakening and * wilting（委焉） during hard hot, dry summers in the United States.
Tommy Carter says they found only 5, but this low * . But these slow-wilting lines, he says, produce 4 to 8 bushels（蒲式耳，谷物计量单位，美国 Winchester bushel=35.238升，英国 Imperial bushel=36.368 升） more than normal soybeans under drought conditions. The * dependents yield depends on location and environment.
The team is now doing fewer field teststhe . The first breeding * line is expected to be released next year for use by private seeds seed companies and public soybeans soybean breeders.
Scientists are also working on other plants that easier either use less warter water or use it better, or both. For example, companies like Monsanto, DuPont and Syngenta are developing corn with reduced warter water needs. Monsanto expects to be ready in 4 years to market its first corn seeds genetically engineer engineered to * resist drought.
| 听写于：2008-11-24 15:11 | 用时：24:54 | |
| 正确率：84% (+17分) | 错词：30个 |
没有评论:
发表评论