What is the difference between diploid and tetraploid daylily?

All plants have a certain number of chromosomes. Most plants have two identical sets of chromosomes in each cell. But there are also those which have three identical sets of chromosomes - triploid or four identical sets of chromosomes - tetraploid and so on.

Tetraploid daylilies

Growers appreciate the tetraploid cultivars to have the following quality:

• They have larger flowers.
• Flowers have more intense color.
• The stems tend to be thicker and stronger.
• They have thicker leaves with intesive colour.
• Have a larger number of chromosomes and therefore ther are more suitable for breading.

Diploid daylilies

Growers appreciate the diploids cultivars have the following quality: 

• They have more beautiful pink flowers.
• Spider like cultivars and double daylilies are more beautiful as diploids.
• They are easier to cross than tetraploids.
• There is more diplods than tetraploids.
• Diploids are longer on the market, many of the old cultivars are extremely durable and adapted to growth in the different conditions.