Selective gametocidal process

Claim 1

A SELECTIVE GAMETOCIDAL PROCESS FOR INDUCING MALE STERILITY IN CULTIVATED FORMS OF THE SPECIES BETA VULGARIS, L. WHICH COMPRISES PLANTING AT LEAST TWO POPULATIONS OF CULTIVATED FORMS OF THE SPECIES BETA VULGARIS, L. IN PROXIMATE RELATIONSHIP WITH EACH OTHER BUT SUFFICIENTLY SEGREGATED TO PERMIT TREATMENT OF A SELECTED POPULATION WITHOUT SUBSTANTIAL EXPOSURE OF THE OTHER POPULATION, SAID TREATMENT COMPRISING APPLYING TO SAID SELECTED POPULATION BEFORE FLOWERING THEREOF AT LEAST ONE COMPOUND WITH IN WATER-SOLUTION FORMS ANIONS OF A CHLORINATED ALIPHATIC CARBOXYLIC ACID THAT CONTAINS FROM THREE TO FOUR CARBON ATOMS AND FROM TWO TO FOUR CHLORINE ATOMS AT A CONCENTRATION OF FROM 0.1 TO 4.0% BY WEIGHT OF SAID COMPOUND IN AN INERT CARRIER AND AT A TOTAL DOSAGE OF FROM ONE POUND TO SEVENTY-FIVE POUNDS PER ACRE, SAID DOSAGE BEING LESS THAN THAT WHICH CAUSES SERIOUS PLANT INJURY OR SERIOUS SEED IMPAIRMENT, CONTINUING GROWTH OF SAID POPULATION WITH DEVELOPMENT OF FLOWERS THEREON, FERTILIZING FLOWERS OF THE TREATED PLANTS BY THE APPLICATION OF POLLEN FROM UNTREATED PLANTS, ALLOWING THE SEED TO MATURE ON SAID TREATED PLANTS, AND COLLECTING THE SEED THEREFROM.