He thought there was only one way to do this-by crossing different species of rice plant, and then he could produce a new plant which could give a higher yield than either of the original plants.

他认为只有一种方法能实现它--杂交不同品种的水稻，然后他就能生产出一种新型水稻，它的产量比任何其他的原始品种都要高。