How to influence TSS and sugar/acid ratio in bananas

Nitrogen influences fruit quality, improving sweetness by increasing the level of Total Soluble Solids (TSS), sugars and the TSS/Acid ratio.

However, too much nitrogen can have a deleterious effect, particularly if out of balance with potassium supply.

Potassium supply is particularly important for the conversion of starch to sugar and the eventual taste of the fruit. High rates of potassium increase the Total Soluble Solid (TSS) and sugar content of the fruit, increasing the sugar/acid ratio.

Boron is associated with sugar transport and assimilation. Zinc and Iron also plays an important role for the TSS content.