Comparative study on ripening effects of three types of ripeners on Miscanthus

Ripening effects of three types of ripeners, including glyphosate, ethylene and glyphosateethyphon mixed preparation on Miscanthus plant was studied taken Miscanthus floridulus 02142 and hybrid combination Xiangzamang No.2 as materials. The results showed that all three types of ripeners had significant effects on decreasing SPAD value of leaves, and effects of glyphosate and glyphosateethyphon mixed preparation was equal, while that of ethyphon was weaker. Significant effects of three types of ripener on promoting dehydration of Miscanthus plant was observed, effects of glyphosateethyphon mixed preparation was strongest, and effects of ethylene was weakest while it had significant enhancement effects on glyphosate. As to contents of N, P and K in Miscanthus plant, ethyphon showed increasing effects commonly, while glyphosate and glyphosate ethyphon mixed preparation showed significant decreasing effect, and effects of treatment of glyphosate 10 mLL-1+ ethyphon 2 mLL-1 was the strongest. In a word, ripening effect of glyphosateethyphon mixed preparation was the strongest, and the optimal concentration was glyphosate 10 mLL-1+ ethyphon 2 mLL-1.