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将不同的条锈菌菌株接种于5个大麦品种,引起了感病反应,但苗期叶片与成株上部叶片的菌体生长速率和产孢量有显著差异。通常在Urtan品种上,锈菌生长最迅速,其它从Proctor, Astrix, Senta到Zephyr逐渐减慢。Senta和Astrix上的产孢量比Proctor, Zephyr和苗期的SUltan品种上的多、菌株间的寄主专化差异是小的,但有些菌株比其它菌株侵袭力更强,表现为生长速率高,产孢量大而潜育期短。温度对产孢影响的差异小。但有些证据表明Senta和Zephyr具有高温抗性。除SUltan外,旗叶比苗期叶片的潜育期长产孢量大、在品种Astrix和Senta中产孢量小似乎是由于成株抗性造成的,而在Proctor和Zephyr中,产孢量可能是全期抗性的结果,特别是在成株期更强烈地表达出来。品种SUltan表现有苗期的轻微抗性,但缺乏成株抗性。
Inoculation of different stripe rust strains on five barley cultivars resulted in a susceptible reaction, but there was a significant difference in the growth rate and sporulation rate between the seedling stage and the upper leaves of adult plants. Often on the Urtan variety, rust grows most rapidly and others slow down from Proctor, Astrix, Senta to Zephyr. The sporulation of Senta and Astrix was more than those of Proctor, Zephyr and seedlings of SUltan. The difference of host specialization between strains was small, but some strains were more invasive than other strains, showing high growth rate, Sporulation large and latent period short. The effect of temperature on sporulation is small. However, there is some evidence that Senta and Zephyr have high temperature resistance. In addition to SUltan, flag leaves had longer sporulation during the incubation period than seedling leaves, and sporulation in Astrix and Senta appeared to be due to resistance to adult plants. In Proctor and Zephyr, the amount of sporulation may be Is the result of full-term resistance, especially at adult stage. The variety SUltan showed slight resistance at seedling stage, but lacked adult plant resistance.