The study tested five strains of Polygonatum odoratum to assess their cold resistance by measuring various factors like supercooling point and freezing point.
Results indicated that cold resistance varied among the strains and was partially linked to the water content in the plant tissues.
The cold resistance rankings for the strains were ZJCY being the most resistant, followed by DYYZ, XYYZ, CYYZ, and JZ I as the least resistant.