National program for screening and evaluation of new rootstocks: Evaluation of locally bred and imported rootstocks Screening and evaluation of the new rootstocks

摘要

In this project, horticultural performances of locally-bred and recently introduced rootstocks grafted to Valencia, Lane Late Navel, Navelina Navel, Eureka lemons and Imperial mandarins are being assessed in short-term (up to seven years duration) field trials. These trials are essential to evaluate disease, salt and lime tolerance as grafted trees and assess the effects the different rootstocks have on fruit yield, size and quality. The trials will also provide indications of any graft incompatibility problems with standard cultivars before wider adoption by the citrus industry. At this stage, results obtained are promising and a plan is proposed to extend the project and investigate the potential of the better rootstocks to clay loam soils in Riverina, Bourke and Curlwaa.