davis works at the university of alston texas and has analyzed the development of 43 vegetable varieties between 950 and 999. i think that most of these declines are caused by increases in yield when you go up there's less nutrients per weight of the food a lot of agricultural scientists may not know about how big these effects are this is kind of an embarrassing of their they're always wanting to increase you if modern breeding was causing increases in flavor and increases in nutrients i think they would talk about it a lot more. but to most of it is one of the fruits that has lost a lot of nutrients looking back it is clear that this has to do with the royalties as well as the sea. down is all over the world she's been seeds from brushes like this. to supply it's all agricultural groups such as syngenta b.s.f. and down. the self documenting up based on size shape color and a high heeled. abbreviation f one if one is important. it means 1st generation hybrid. the breeding of hybrids works respondants. take the plants of the variety that for example has lunch but too pale to. process wit