Donnelly Alison, Craigon Jim, Black Colin R, Colls Jeremy J, Landon Geoff
School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK.
School of Life and Environmental Sciences, University of Nottingham, University Park, NG7 2RD, UK.
New Phytol. 2001 Feb;149(2):265-274. doi: 10.1046/j.1469-8137.2001.00015.x.
• Changes in the growth and yield of field-grown potato (Solanum tuberosum cv. Bintje) induced by season-long elevated CO and/or ozone concentrations are reported. • Open-top chambers and unchambered field plots were used to examine crop responses to three CO (ambient, 550 and 680 µmol mol ) and two ozone (ambient and 65 nmol mol , 8 h d seasonal mean) treatments applied throughout the 105 d growing season. • Elevated CO increased both above- and below-ground biomass at intermediate and final harvests. Tuber yield at final harvest was increased by c. 40% due to an increase in mean tuber weight rather than tuber number; tuber yield did not differ significantly between the 550 and 680 µmol mol CO treatments. Elevated ozone had no significant effect on growth or yield except for the largest size category of tubers, despite extensive visible foliar injury. Significant CO × ozone interactions were detected only for senescent leaf number and green leaf ratio. • Elevated CO increases biomass and tuber yield in S. tuberosum cv. Bintje even at high ozone concentrations; these findings are discussed in relation to predicted future atmospheric changes.
• 报告了整个生长季节CO浓度升高和/或臭氧浓度升高对田间种植马铃薯（Solanum tuberosum cv. Bintje）生长和产量的影响。• 使用开顶式气室和未设气室的田间小区，研究了作物对三种CO浓度（环境浓度、550和680 μmol mol）和两种臭氧浓度（环境浓度和65 nmol mol，每天8小时，季节性平均值）在105天生长季节中的处理响应。• CO浓度升高使中期和末期收获时地上和地下生物量均增加。末期收获时块茎产量增加了约40%，这是由于平均块茎重量增加而非块茎数量增加；550和680 μmol mol CO处理之间的块茎产量没有显著差异。尽管叶片有广泛的可见损伤，但除了最大尺寸类别的块茎外，臭氧浓度升高对生长或产量没有显著影响。仅在衰老叶片数量和绿叶比例方面检测到显著的CO×臭氧交互作用。• 即使在高臭氧浓度下，CO浓度升高也会增加S. tuberosum cv. Bintje的生物量和块茎产量；结合未来预测的大气变化对这些发现进行了讨论。
