Sanz M J, Porcuna J L, Calvo E, Martín C
Fundación Centro de Estudios Ambientales del Mediterráneo (CEAM), Parc Tecnològic, C/C.R. Darwin, 14. 46980 Paterna, Valencia, Spain.
ScientificWorldJournal. 2002 Mar 26;2:811-7. doi: 10.1100/tsw.2002.150.
Ozone concentrations rise to phytotoxic levels from spring to autumn at western Mediterranean basin coastal sites, where artichoke is one of the most important crops. Simultaneously, from year to year and especially since the early 1980s, resprouting of the stumps has been decreasing in Valencian Community artichoke plantations. To see if ozone might be playing a role in this decrease, a number of plants were exposed to different levels of ozone. Results of the ozone treatments showed reduced biomass in the offshoots of plants exposed to the highest ozone treatment. The exposure to ambient ozone during the stump-establishment period, when compared to filtered-air conditions, resulted in a reduction in yield when plants were transplanted in the field under ambient ozone concentrations. And when plants were exposed to acute short picks, typical ozone visual injury appeared in the older leaves.
在地中海盆地西部沿海地区，从春季到秋季，臭氧浓度会升至对植物有毒的水平，而在这些地区，洋蓟是最重要的作物之一。同时，年复一年，尤其是自20世纪80年代初以来，巴伦西亚自治区洋蓟种植园里树桩的再发芽情况一直在减少。为了探究臭氧是否可能在这种减少中起作用，一些植物被暴露于不同水平的臭氧中。臭氧处理的结果表明，暴露于最高臭氧处理水平的植物的侧枝生物量减少。与过滤空气条件相比，在树桩形成期暴露于环境臭氧中，当植物在田间环境臭氧浓度下移植时，产量会降低。当植物暴露于急性短期臭氧环境时，老叶上会出现典型的臭氧可见损伤。
