Chilling and ga3 effects on growth and development of 'Nemaguard' and 'GF 305' peaches
2012
Leida, C. | Conejero, A. | Ríos, G. | Llácer, G. | Badenes, M.L.
The effect of different chilling and gibberellin treatments on growth and development of the peach rootstocks 'Nemaguard' and 'GF305' was studied. A factorial experiment was designed combining cold treatments (0, 5, 15 and 30 days at 4°C temperature) and GA3 concentrations (0, 100 and 200 mg/L). The variables considered were: percentage of germination, number of internodes, plant height and the ratio plant height/number of internodes. Results showed an overall growth increase as a consequence of chilling and gibberellin addition; however the behaviour of the two assayed rootstocks was slightly different. In general terms, 'Nemaguard' responded well to 5 days cold and chilling treatments did not improve growth in a relevant way, whereas 'GF305' showed a more gradual effect of the chilling and gibberellin treatments on the studied parameters.
显示更多 [+] 显示较少 [-]