DIFFERENT TYPES OF AGAR Mac Conkeyâs Agar plate MacConkey (also McConkey) agar is a culture medium designed to grow Gram-negative bacteria and stain them for lactose fermentation.he pattern of lactose fermentation and H 2 S production aids in the identification of the organism subbed to the plate. HE agar is designed to isolate and recover fecal bacteria belonging to the Enterobacteriaceae family. HE is particularly useful in isolating Salmonella and Shigella.
In fact, spring should be the only time for complete cutting back. Pruning hibiscus plants entirely helps rejuvenate them for summer blooming. Branch tips can be pinched, or tip pruned, throughout the season, however, to encourage bushier growth.
Tropical hibiscus plants hate temperatures below 45 degrees, and die when temperatures are 25 degrees or lower. So if you want to winter over a tropical hibiscus, here's what to do: â¢Prune it back. Hibiscus can be cut back by up to 50 percent, although 30 percent is more usual. Trim the stems leaving a bit of new growth and several mature leaves on the plant. â¢Mature tropical hibiscus plants thrive in 10- to 12-inch pot.