2. But these slow-
wilting lines, he says, produce 4 to 8 bushels more than normal soybeans under drought conditions.

他说,但是这些萎靡变慢的种质样本在干旱的条件下比普通大豆多产4到8蒲式耳。
3. They searched for germplasm that could keep plants from weakening and
wilting during hot summers in the United States.

他们研究可以阻止植物在美国炎热的夏天弱化和枯萎的种质。