Abstract:

Abstract: To research the relationship of SS (sucrose synthtase) activity of the growth period of corn silage and stalk NDF content of silage corn, 10 silage corn hybrids which have significant differences in stalk NDF content are chose as the experimental material. Our study provides a theoretical basis for improvement of NDF content and cultivating low-fiber and high-quality varieties of corn silage. The results showed, there is a negative correlation between the stalk NDF content and SS activity. All of these are consistent with the hypothesis about SS as a key enzyme in the synthesis of cellulose, just because it provides the substrate for synthesis of cellulose, through decomposing sucrose into UDPG.