Indole-3-Acetic Acid, Polyamines, and Phenols in Hardwood Cuttings of Recalcitrant-to-Root Wild Grapes Native to East Asia: Vitis davidii and Vitis kiusiana

Table 2

Adventitious root development of hardwood cuttings of ‘Campbell Early,’ V. davidii, and V. kiusiana 60 days after planting.

Year	Grapes (𝑛)		Viable cuttings (𝑛)	Sprouting (%)	Rooting (%)	Root number⋅cutting^−1	Root length (cm)	Callus formation (%)
2003	Campbell Early	40	40	95	100	9.5±1.6	12.0±1.5	47.5
	V. davidii	17	8	0	0	—	—	0
	V. kiusiana	20	20	10	0	—	—	80.0
2004	Campbell Early	24	24	75	62.5	1.9±0.5	11.8±1.1	—
	V. davidii	24	22	50	0	—	—	—
	V. kiusiana	24	24	4	0	—	—	—