The tomatoes developed by UF are listed here in this document: http://edis.ifas.ufl.edu/pdffiles/AG/AG21300.pdf. They grow great here, they just don't taste great. Some tasty hybrids do well here - just not growing in unamended soil in the ground.
Chloramine, on the other hand, is a combination of chlorine and ammonia. While chlorine dissipates and evaporates into the air relatively quickly, chloramine is more stable and will last longer in the water system. The goal is to provide increased protection from bacterial contamination.
Chemical Neutralization. The chlorine atom in the chloramine molecule is in an unstable state, making it reactive and dangerous for living organisms. Chloride, on the other hand (as in sodium chloride: regular table salt), is a stable version of the chlorine atom thatâs actually necessary for plant growth.