So, let me explain to you about this rye plant.If you take a little seed of many grasses―and remember rye is a grass;if you take a tiny little seed and you germinate it―actually, take one of my least favorite grasses that starts growing about May.What's my least favorite grass that starts growing about May?Crabgrass.Crabgrass. Remember how I showed you in the lab, one little seed starts out producing one little shoot.Then at a week or so later you've got about six shoots,and then, three weeks later you've got about fifteen shoots coming out all directions like this― all those little shoots up there?Well, that's what they did with the rye. And the little seedling started and pretty soon there were several shoots, and then more shoots.In the end, that one single seed produced eighty shoots, with an average of fifty centimeters of height...from one seed, eighty shoots coming out, average fifty centimeters high.When they looked at the shoot versus the root surface,they found that the shoot surface, with all of its leaves, had a total surface area of about five square meters.Now, here's the biggie, when they looked at the root surface area,you would expect that the root and the shoot would be in balance, right?So, they should be pretty close in terms of surface area, right?Uh-un.What's that? Did somebody say “no”? Well, you're absolutely correct.
那么，我来给你们解释下这株黑麦。如果你从很多草中取一点点种子――别忘了黑麦是一种草；如果你取一点种子然后使它发芽――其实，拿一个我最不爱的五月开始生长的草来说好了。我最不喜欢的在五月开始生长的草是什么？马唐。马唐。记得我在实验室给你们展示过，一颗小种子抽出一颗芽。然后大概一个星期之后就有六颗芽，三个星期后就有大约十五颗芽从各个方向冒出来――长在那里的小芽？他们也是这样处理黑麦的。小幼苗开始生长很快就有了一些芽，之后有了更多的芽。最后，那一颗种子发出了80颗芽，平均50厘米高，一颗种子，发了80颗芽，平均每颗50厘米高。当他们对比观察芽和根表面的时候，他们发现，芽表面包括其所有的叶子，总表面积达约5平方米。让人惊讶的事来了，当他们观察根表面的时候，你们觉得根与芽会平衡，对吗？它们的表面积应该很接近，对吧？不是。什么？有人说了不是吗？你说对了。
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