The South African Deciduous Fruit Industry's Pome Fruit Rootstock Scenario and Future Initiatives

摘要

The Orchard Systems Symposium 2012 took place in Stellenbosch during December 2012. This abstract was delivered by Mr. Frederik Voigt of SAPO Trust in conjunction with Prof Piet Stassen of the ARC Infruitec-Nietvoorbij with respect to the South African Deciduous Fruit Industry's Pome Fruit Rootstock scenario and future initiatives. Trials conducted during 1967 to 2004 in the main producing areas of South Arica confirmed M793 to be the best standard size rootstock, while M7 (susceptible to Woolly Apple Aphids (WAA) and suckering) and MM106 (susceptible to Phy-tophthora), were conditionally recommended as semi-dwarfing rootstocks. The high vigour MM109 is recommended for soils of low fertility and spur type varieties. At this stage there is an urgentneed for further improved, precocious, productive, yield efficient rootstocks.