Use of Haploids in Production of Disomic Inheritance of Homozygous Line - The most important use of haploids, often advocated, is their use in the production of homozygous lines, which may be directly used as cultivars or may be used in breeding programmes.

For instance, a doubled haploid, 'Marglobe tomato' has been used commercially. Similarly, doubled haploids were used as inbred lines in hybrid maize programme.

However, the chief limitation in the use of haploids for production of homozygous lines had been the low frequency, with which they were available.