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.
1 Any pruning of tropical hibiscus affects bloom. 2  Hibiscus bloom on old wood, meaning that removing wood during winter will limit the following season's bloom. 3  Spring pruning, after new growth is under way, however, delays bloom on the affected branches.imit winter pruning of tropical hibiscus to emergencies. Hibiscus plants flower all summer long on city porches and suburban landscapes, but when autumnâs warm breezes turn chilly, those planters and pots come indoors to spend the winter away from daytime chills and frosty nights.