The invention relates to Sorghum bicolor plants which, due to modifications to the genome relating to a pollen-specific expression of patatin phospholipase, are capable of inducing haploidy, thereby producing haploid progeny, and within short time inbred lines, i.e. homozygous paternal parent and maternal parent lines can be produced by way of chromosome duplication for hybrid breeding. The invention also relates to methods for producing transgenic and non-transgenic plant haploid inducers and for improving the induction power of plants.
