Observations of root growth of young poplar and willow planting types

New Zealand Journal of Forestry Science

Table 1 Details of the plant species and types of vegetative material trialled

Clone name	Species parentage	Mean diameter at ground level at time of planting (mm)			Initial biomass of a representative sample of each planting material (kg)
		Pole	Wand	Stake	Pole		Wand		Stake
					AGB	BGB	AGB	BGB	AGB	BGB
‘Kawa’	Populus deltoides × yunnanensis ‘Kawa’	52	27	24	1.358	0.412	0.109	0.073	0.029	0.043
‘Veronese’	Populus deltoides × P. nigra ‘Veronese’	56	22	17	1.566	0.477	0.059	0.039	0.019	0.029
‘Hiwinui’	Salix matsudana × alba ‘Hiwinui’	55	20	18	1.226	0.373	0.066	0.044	0.018	0.028
‘Tangoio’	Salix matsudana × alba ‘Tangoio’	55	25	23	1.286	0.391	0.082	0.055	0.028	0.043

Initial oven-dry biomass above- (AGB) and below-ground (BGB) based on proportion of cutting above or below the ground surface at time of planting (below-ground: 23% poles, 40% wands, 60% stakes).