Cross-Breeding Improvement and Performance Analysis of Dominant Production Traits in Grazing-Type Alfalfa (Medicago sativa L.)

Table 2

Coefficients of correlation between dry hay yield and yield-related indicators of hybrid strains.

Hybrid strains	Plant height	Stem thickness	Branch number	Leaf/stem ratio	Overwintering rate	Fresh yield	Fresh/dry ratio
RSA-01	1.000	0.997	0.996	−0.793	0.435	1.000	−0.582
RSA-02	0.946	0.988	0.977	−0.137	0.740	0.794	−0.830
RSA-03	0.926	1.000	0.988	−1.000	0.437	0.941	−0.781

indicates significant correlation between dry hay yield and yield-related indicators at a value of <0.05; indicates significant correlation between dry hay yield and yield-related indicators at a value of <0.01.