Further disclosed is a squash plant comprising at least a first set of chromosomes of squash line ZGN-EH10211 having been deposited under ATTC accession number PTA-121597. Disclosed is a squash hybrid SV3451YG, a sample of seed of said hybrid having been deposited under ATCC accession number PTA-121514. Further disclosed are seeds, plants and tissue cultures of said squash hybrid. Further disclosed are methods of producing and propagating said plants.