Abstract:

The quality and yield of GS Zhengbainuo918 were studied at different harvest times for three times. The results showed that harvest time had a significant effect on the content of the main nutritional component and trace element, but little on yield for fresh. As harvest times put off, crude protein content was declined form 20 to 23 days after pollinated, and then increased and the total performance was decrease. On the contrary, iron content with delayed harvest time content increased at first, then dropped. And the overall trend was increased .Crude fat and starch content were increased gradually with puting off the time of harvesting. Lysine and total soluble sugar and calcium content were just the opposite. Magnesium content a descent trend followed by a ascent stage and the total performance was decrease.