| Popis: |
The clonally propagated avocado rootstock selections Thomas, Duke 7, Barr Duke, and Topa Topa (Persea americana); UCR 2007, UCR 2008, and UCR 2053 (P. schiedeana); Martin Grande (G755a, b, and c), UCR 2022, and UCR 2023 (P. americana × P. schiedeana); and UCR 2066 (P. steyermarkii) were evaluated for resistance to Phytophthora cinnamomi in excised etiolated shoots, excised roots, and intact root systems grown in vermiculite. Resistance reactions were similar in etiolated shoots and intact root systems with the P. schiedeana, P. americana × P. schiedeana, and P. steyermarkii selections. With the P. americana selections, in contrast, the etiolated shoot and intact root system reactions differed (.) |
