Faster Growth Chambers is a technology that is unique to the Gungans, and can be researched at the War Center in Tech Level 4. It costs 750 Food and 550 Carbon, and makes Ships 20% cheaper. In addition, they are built 20% faster.
When combined with Redoubled Efforts, this technology will give the Gungans the cheapest Ships in the game, and they can create them faster than any other civilization. This will give them an important advantage in naval combat.
"At Tech Level 4, the Gungans gain the unique ability to boost production of their organic Ships, by growing them more quickly than normal."