Establishing an Efficient Way to Utilize the Drought Resistance Germplasm Population in Wheat

Table 2

The logarithmic equations on the CR’s value responded to the sampling percentage in five combinations of subcore collection construction. The optimal sampling percentage was calculated by the equation when the value of CR (%) was set to 95.00.

Combination^(a)	Equation^(b)	𝑅^2(c)	Optimal sampling percentage (%)
HR-Manhat	𝑦 = 12.19ln(𝑥) + 58.41	0.9732	20.12
𝑅-Euclid	𝑦 = 6.52ln(𝑥) + 78.17	0.9616	13.21
MR-Mahal	𝑦 = 2.67ln(𝑥) + 90.16	0.9451	6.13
𝑆-Seuclid	𝑦 = 2.80ln(𝑥) + 91.16	0.9392	3.94
HS-Euclid	𝑦 = 2.47ln(𝑥) + 91.14	0.9498	4.77

^(a)HR-Manhat: high resistant group combining Manhattan distance; 𝑅-Euclid: resistant group combining Euclidean distance; MR-Mahal: moderate resistant group combining Mahalanobis distance; 𝑆-Seuclid: susceptible group combining Standardized Euclidean distance; and HS-Euclid: high susceptible group combining Euclidean distance.
^(b)𝑥: the sampling percentage (%); 𝑦: the value of CR (%).
^(c)𝑅²: coefficient of determination of fitted equations.