George Hammond wrote:
> Andrew Dalke wrote:
> > >Hammond: the question then: Is there direct evidence from
> > > crop yield and other agricultural data on parthogenetic
> > > (asexual-clonal) plants, which indicates a significant
> > > VARIANCE in adult size, from which we may conclude
> > > that there is such a thing as an "ADULT GROWTH DEFICIT"
> > > in these plants (in the actual environment), whereby
> > > they are generally always somewhat smaller than some
> > > "theoretical genetic maximum adult size"?
> > > And further, from the Normal Distribution Curve
> > > for the adult size of these (clonal) plants, can
> > > we ESTIMATE the "theoretical genetic size" of the
> > > plant, statistically.... by for instance assuming
> > > that it must be near "2-Standard Deviations" above
Something else that may of help. There are crop growth models in
existence (eg, Soygrow and Pnutgrow) which predict how much a crop is
going to grow, given temperature, water and light conditions. The models
are used to support decision making systems. For example, the model can
predict how much a weed from a given species growing at a certain distance
from the plant will affect its growth and yield. That way, the farmer can
decide if the cost of weed control will be greater or lower than the cost
of the predicted yield loss.
I am assuming that all the information you are asking about had to go into