Under low nitrogen levels, plant mitogen, cotton functional leaves after topping cytokinin (CTK) and soluble protein content decreased, and abscisic acid (ABA) and malondialdehyde (MDA) content increased; after decapitation NAA - smearing process CTK and soluble protein content than decapitation and not topping High, Ningbo mitogen, and ABA content of less than decapitation treatment plant mitogen for sale, but still higher than no topping process. Topping processing ABA / CTK ratio was higher than that without topping process, and after topping smear exogenous auxin and make ABA / CTK than decapitation treatment decreased. Mitogen mode of action is not entirely clear. Known tRNA with anticodon adjacent where there cytokinin in protein synthesis, cytokinins wholesale, their participation to the linker tRNA and mRNA ribosome complex. But this may not be the mode of action of exogenous cytokinin. Because tRNA, the cytokinin synthesis is changed from the original in tRNA produced in purine. Exogenous cytokinins did not participate in the tRNA, but can promote nitrate reductase, protein and nucleic acid synthesis. Marvell biotechnology (Figure) | plant mitogen Sale | Ningbo mitogen provided by Shouguang Marvell biotechnology company. Shouguang Marvell Biotechnology Limited (www.maiweishengwu.com) is located in Shouguang City Economic Development Zone. Scraps and development in the wave of market economy, the current Marvell biotechnology has a high profile in the biological fertilizer, enjoy a good reputation. Marvell biotechnology has made the whole network business alliance certification, marking our service and management level has reached a new height. Marvell biotechnology staff willing to work with all people of insight and common development, for a better future.