The other thing is that maybe that Fowler apple or maybe a variety of wheat that's not economical right now has disease or pest resistance or some quality that we're going to need for climate change that the others don't.
另外一个就是也许福勒苹果 或大麦的其它品种在今天没有价值 但未来可能有着别的品种没有的 对疾病害虫免疫或对气候变化的适应性的特性。