In the practice of the present invention, {HEAD ~ the hybrid seed} generally forms {TAIL ~ at least about 97%} of the total seed 
generally forms
In the practice of the present invention , { HEAD ~ the hybrid seed } generally forms { TAIL ~ at least about 97 % } of the total seed
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH