By microinjection Different concentrations of cytokinin (kinetin, KT) introduced 30 days after flowering soybean seed embryo and seed plant apoplastic space between mitogen skin, while giving leaves fed ~ (14) CO_2, In percentage of total radiation intensity of the seed coat and cotyledons radiation intensity KT comparative analysis of assimilation was discharged. The results show that; 10 ~ (-4), 10 ~ (-5) mol / L of KT promote species skin assimilates the unloading and distribution to the cotyledons. Cytokinin is an important plant hormone cytokinin wholesale plant, it can delay aging plants to a certain extent. Mainly from the relationship between cytokinins and senescence reviewed three aspects, namely: (1) the aging process plant source of cytokinin content in: (2) Effect of exogenous cytokinin; (3) transfer Revenue and cytokinin synthesis, degradation of plant senescence-related genes produce. In addition, the cytokinin and sugar, and lipid oxidation reactions and the relationship with other plant hormones discussed the mechanism of cytokinin in delaying plant senescence. Chizhou plant mitogen _ _ mitogen Marvell Marvell biotechnology provided by Shouguang biotechnology company. Shouguang Marvell Biotechnology Limited (www.maiweishengwu.com) strong, credible, Shandong Weifang biological fertilizer industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Marvell biotechnology into the brilliant and you work for a better future!