广播电视英语短句 第 72 课：减少农业用水量-4

They looked at ones from the ancestral home of soybeans, Asia. 他们研究一些大豆老家亚洲的样本。

They searched for germplasms that could keep plants from weakening and wilting during hot, dry summers in the United States. 他们寻找可以在美国燥热夏天中抗衰和抗枯的胚质。

Tommy Carter says they found only five. 汤米卡特说虽然他们仅仅找到了5个胚质。

But these slow-wilting lines, he says, produce four to eight bushels more than normal soybeans under drought conditions. 但是这些缓慢枯萎系在干旱条件下比常规大豆产出4到8蒲式耳。

The yield depends on location and environment. 产量由地域和环境决定。