“…4460,4461,4462,4463,4464,4465,4466,4467,4468,4471,4472,4473,4474,4475,4476,4480,4484,4485,4486 4469,4470,4477,4479,4481,4482,4487,4488,4490,4491,4494,4495,4496,4498,4500,4502,4503,4508,4509,4511,4515 (Table 1) and include interspecific crosses between Populus deltoides (D), Populus nigra (N), Populus balsamifera (B), P. maximowiczii (M), and P. × petrowskyana (P. laurifolia × P. nigra). Two related poplar clones, widely planted across the Canadian Prairies, the female clone 'Walker ' (Populus deltoides × (P. laurifolia × P. nigra)) (Lindquist et al 1977) and male progeny clone 'Okanese' ('Walker' × (P. laurifolia × P. nigra)) (Schroeder et al 2013) were used as reference clones. Both clones are of economic importance in shelterbelts and, more recently, in short rotation intensive crop (SRIC) plantations (Goehing et al 2017).…”