By Olivia McClure -LSU AgCenter New varieties are one of the best ways farmers can stay ahead of the many challenges that come with growing rice. Next year, they’ll be able to plant two fresh releases from the LSU AgCenter that address key disease and grain quality issues. The varieties — Suivant and LA22-1082 — were unveiled June 24 at the 117th annual field day at the AgCenter H. Rouse Caff…