Production of hybrid cottonseed by chemically inducing male-sterility

Claim 1

THE PROCESS OF PRODUCING HYBRID COTTON SEED WHICH COMPRISES TREATING ONE VARIETY OF COTTON PLANT PRRIOR TO THE OPENING OF THE FIRST FLOWER BUDS THEREOF WITH A CHLORINATED COMPOUND WHICH IN WATER-SOLUTION FORMS THE ANION OF THE CHLORINATED ALPHATIC CARBOXYLIC ACID CONTAINING FROM 2 TO 4 CARBON ATOMS PER MOLECULE AND AT LEAST TWO CHLORINE ATOMS, SAID COMPOUND BEING APPLIED AT A RATE AND AT A CONCENTRATION IN A DILUENT MEDIUM BELOW THE RATE AND CONCENTRATION WHICH CAUSE SERIOUS INJURY TO THE PLANT UNDER THE CONDITIONS EXISTING AT THE TIME OF APPLICATION, CONTINUING THE GROWTH OF THE THUS TREATED PLANTS, DEVELOPING MALE-STERILE FLOWERS THEREON, CAUSING THE FLOWERS OF SAID TREATED PLANT TO BE FERTILIZED BY POLLEN FROM A DIFFERENT VARIETY OF COTTON PLANT, MATURING THE FLOWERS AND SEEDS THEREFROM, AND SEPARATELY COLLECTING THE SEED OF THE TREATED PLANTS WHEN THE SEED HAS MATURED.