The optimal seed size is commonly supposed to reflect an underlying trade-off between seed size and seed number, where seedling survival increases asymptotically with increasing seed size but at the cost of decreased seed production (smith & fretwell 1974). under this model any variability around the optimum seed size is seen as maladaptive.. The effect of corn seed sizing methods on seed quality abstract reports from the 2000 and 2001 seed corn crop indicated quality problems after the seed was sized, conditioned and then planted. these problems were not predicted by the traditional measures of warm and cold germination.. Seed size is an important feature of the attribute constella- tion of a plant species. as lineages evolve and speciate, the possibilities for dispersal and establishment biology must be conditioned by seed size, and conversely natural selection on seed size must be shaped by the dispersal and establishment biology of a species..
Seed) reference specific sizes that are suitable to specific planter plates. the majority of the seed from an ear segregate into pdr seed and pdf seed fractions. pdr
