This is a study shared on a Facebook page, I also wanted to share for anyone who would like to read. 

The study focuses on the morphological, biochemical, and molecular characterization of three dragon fruit species well-adapted to the Andaman and Nicobar Islands.

Morphological analysis, including 34 quantitative and 26 qualitative traits, revealed genetic variations, particularly in fruit characteristics.

Key traits for identification included pulp/peel color, number of spines, and length of areoles in cladodes.

Biochemical analysis indicated higher phenol and flavonoid content in peels, suggesting greater antioxidant potential.

The study also assessed total carotenoids, β-carotene, and xanthophyll content, with specific genotypes identified as having industrial importance for nutraceutical product development.

Molecular analysis using ISSR markers distinguished three Hylocereus species based on geographic origin and pulp color, revealing genetic relationships and diversity.

Overall, the findings contribute to the understanding of dragon fruit diversity, enabling potential applications in agriculture and nutraceutical industries.

Self Fertile Dragon Fruit  - These dragon fruit varieties do not require hand pollination they are self fertile and can pollenate themselves with their own pollen

Self Sterile  Dragon Fruit - These Dragon fruit varieties require x pollenating. They are unable to pollenate themselves with there own pollen or have a bad design where they are less likely to pollenate themselves. 

This is a quick blog on how to train dragon fruit cuttings .

When you pot up your dragon fruit some will produce a many branches. It is best to focus your plants energy into 1 or 2.

How does Gypsum work and what is it ?

There has been talk in the dragon fruit growing community about the use of gypsum to encourage the flowering of your dragon fruit plant. 

Here is a list of Pitaya / Dragon Fruit varieties grown in The USA.

There is a easy to follow table with the dragon fruits listed and their origin, pollenation needs, weight, colour, flavour and recommendation. 

Enjoy reading 

"NOID" typically stands for "No IDentification" and is often used in gardening or horticulture when a plant or specimen doesn't have a specific identification or label.

So NOIDS are always going to be in the Dragon Fruit Industry there is no getting around this. You just need to decide what varieties you want in your collection. What characterises you prefer and go from there. 

The authenticity of the variety's  will not be conclusive until genetic testing is conducted and a would wide data base in established.