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.
All species of perennial hibiscus grow well from fresh seed, which can be sown in autumn or late winter within U.S. Department of Agriculture plant hardiness zones 7 to 10.The seeds sprout in approximately one month and the resulting seedlings will bloom during their first year in the garden.. Gather perennial hibiscus seeds in autumn when the papery seed husks dry out and begin to split open. Sow the seeds immediately, or store them in a cool, dry place until twelve weeks before the last spring frost.