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- Title
Effects of simulated acid rain on oilseed rape (Brassica napus) physiological characteristics at flowering stage and yield.
- Authors
Chun-xin Cao; Qin Zhou; Liang-liang Han; Pei Zhang; Hai-dong Jiang
- Abstract
A pot experiment was conducted to study the effects of different acidity simulated acid rain on the physiological characteristics at flowering stage and yield of oilseed rape ( B. napus cv. Qinyou 9). Comparing with the control ( pH 6. 0 ), weak acidity ( pH = 4. 0 -5. 0 ) simulated acid rain stimulated the rape growth to some extent, but had less effects on the plant biomass, leaf chlorophyll content, photosynthetic characteristics, and yield. With the further increase of acid rain a-cidity , the plant biomass, leaf chlorophyll content, photosynthetic rate, antioxidative enzyme activities , and non-enzyme antioxidant contents all decreased gradually, while the leaf malonyldialdehyde (MDA) content and relative conductivity increased significantly. As the results, the pod number per plant, seed number per pod, seed weight, and actual yield decreased. However, different yield components showed different sensitivity to simulated acid rain. With the increasing acidity of simulated acid rain, the pod number per plant and the seed number per pod decreased significantly, while the seed weight was less affected.
- Subjects
RAPE (Plant); RUTABAGA; ACID rain &; the environment; PLANT biomass; CHLOROPHYLL; CROP yields &; the environment; PLANT ecophysiology; SEED research
- Publication
Yingyong Shengtai Xuebao, 2010, Vol 21, Issue 8, p2057
- ISSN
1001-9332
- Publication type
Article