Effects of ozone on growth and yield of Chinese cabbage

Effects of ozone on growth and yield of Chinese cabbage

2003

A:PS

Chinese cabbage (Brassica campestris subsp. chinensis [B. pekinensis]) plants in farmland open top chambers were exposed to different O3 concentrations, i.e. 8.93 x 10-9, 4.46 x 10-9, _4.46 x 10-10 and 1.12-1.79 x 10-9 mol/litre (control), for 5, 10, 15 and 30 days. Increasing O3 concentrations increased the occurrence of yellow leaves, decreased the daily increase in total biomass and changed the distribution of assimilates to different plant organs. Leaf number, leaf area, net photosynthesis of outer leaves and yield of Chinese cabbage were greatly reduced when exposure to O3 at 8.93 x 10-9 mol/litre was prolonged.

v.30(2):167-170, ACTA HORTICULTURAE SINICA

Research > Published Articles