Possibility and practice of maize breeding with high yield and multi-resistance

Using the maize single cross hybrid Guidan 22 with high yield,good quality and multi-resistance as material,the variety characteristics and breeding technology which is adaptable for planting and demand in Guangxi were discussed.It put forward that priorities should be focused on yellow,flint brightness grains and white maize cob with high yield,and meanwhile,the tolerance to drought and barren soil and resistance to diseases should be strengthened.The keys to increase the efficiency of maize breeding are the selection of basic materials of lines breeding and the application of heterosis pattern.The resistance and adaptation of varieties should be increased and breeding risk be reduced by ecological breeding and breeding strong green-keeping hybrid.