Panicle Blast and Canopy Moisture in Rice Cultivar Mixtures

摘要: Zhu, Y.-Y., Fang, H., Wang, Fan, J. X., Yang, S.-S., Mew, T. W., and Mundt, C. 2005. Panicle blast canopy moisture in rice cultivar mixtures. Phytopathology 95:433-438. Glutinous cultivars were sown after every fourth row of a nonglutinous, hybrid an additive design. The glutinous 35 to 40 cm taller substantially more susceptible than was the nonglutinous cultivar. Interplanting reduced incidence severity panicle on by >90%, 30 40%. Mixing increased per unit area yield 80 90% relative pure stand, whereas essentially unaffected mixing. To determine whether different plant heights structures may contribute microclimate that is less favorable infection, we monitored status stand mixture at 0800 h measuring humidity height panicles using swing psychrometer visually estimating percentage leaf covered dew. Averaged over two seasons, number days 100% 20.0 2.2 for stands mixtures, respectively. mean dew 84 36% Although other mechanisms also operative, wetness likely substantial contributor control Additional keyword: microenvironment.