Publication Date
1993
Description
Subterranean clover root rot, caused by Phytophthora clandestina, is a serious disease in both irrigated and dryland pastoral regions of Australia. An Intensive program of screening cultivars and genetic lines of subterranean clover from the National Subterranean Clover Improvement Program (NSCIP) for resistance to root rot caused by Phytophthora clandestina is described, Subterranean clover (Trifolium subterraneum L.) lines, divided into screening runs, were infected with isolates of P. clandestina in a cooled greenhouse and each run required 11 weeks for complete evaluation, Each line was rated for root rot resistance ogainst a standard resistant cv. Larisa and a standard susceptible cv. Woogenellup. Approximately 800 lines have been successfully screened from 1985 to 1988. Of the lines screened, 229& were root rot resistant and more than 9S% of ssp. yanninicum tested were highly resistant.
Citation
Flett, S P.; Taylor, P A.; and Wakley, V, "A Method for the Greenhouse Evaluation of Subterranean Clover Breeding Lines for Phytophthora clandestina Root Rot" (2024). IGC Proceedings (1993-2023). 1.
https://uknowledge.uky.edu/igc/1993/session22/1
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
A Method for the Greenhouse Evaluation of Subterranean Clover Breeding Lines for Phytophthora clandestina Root Rot
Subterranean clover root rot, caused by Phytophthora clandestina, is a serious disease in both irrigated and dryland pastoral regions of Australia. An Intensive program of screening cultivars and genetic lines of subterranean clover from the National Subterranean Clover Improvement Program (NSCIP) for resistance to root rot caused by Phytophthora clandestina is described, Subterranean clover (Trifolium subterraneum L.) lines, divided into screening runs, were infected with isolates of P. clandestina in a cooled greenhouse and each run required 11 weeks for complete evaluation, Each line was rated for root rot resistance ogainst a standard resistant cv. Larisa and a standard susceptible cv. Woogenellup. Approximately 800 lines have been successfully screened from 1985 to 1988. Of the lines screened, 229& were root rot resistant and more than 9S% of ssp. yanninicum tested were highly resistant.
