Accumulation Regularity of Soluble Sugar in Gains of Spring Maize and Its Relation with Starch Content

This experiment utilized high starch maize Sidan19,common maize Dongnong250 and good quality protein maize Fenghe 10 as materials,the effects of nitrogen application on soluble sugar and starch accumulation in gains of spring maize were studied.The results showed that sucrose content in grains increased firstly and then fell gradually after spinning.The contents of fructose and total soluble sugars fell gradually.The content of starch went up gradually during grain filling stage.