I have discovered a novel class of compounds which are useful as {HEAD ~ growth regulators}, particularly for {TAIL ~ the purpose} of yield enhancement or increasing the fruit set of crop plants 
particularly for
I have discovered a novel class of compounds which are useful as { HEAD ~ growth regulators } , particularly for { TAIL ~ the purpose } of yield enhancement or increasing the fruit set of crop plants
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH