Williams (1963) later found that crimson clover varieties showed great variability in the amount of force exerted by seedlings.
(force; exerted; by seedlings) (Williams (1963; found; that crimson clover varieties showed great variability in the amount of force; T:later) Context(Williams ( 1963 found,List([0, 27))):(crimson clover varieties; showed; great variability; L:in the amount of force)
Williams ( 1963 found,List([0, 27))
force Williams (1963 crimson clover varieties
exerted found showed
by seedlings
that crimson clover varieties showed great variability in the amount of force T:later
great variability L:in the amount of force