摘要
Studies on the effect of different levels root cutting on the photosynthesis rate,stomata conductance,aboveground biomass,grain yield,and water use efficiency of maize showed that moderate root cutting could improve its photosynthesis ability,and increase its aboveground biomass and WUE. On the contrary,when the roots were cut severely,the photosynthesis ability was weakened,and the biomass was decreased. Moderate root cutting could increase maize grain yield,but the effect was not significant.
Studies on the effect of different levels root cutting on the photosynthesis rate,stomata conductance,aboveground biomass,grain yield,and water use efficiency of maize showed that moderate root cutting could improve its photosynthesis ability,and increase its aboveground biomass and WUE. On the contrary,when the roots were cut severely,the photosynthesis ability was weakened,and the biomass was decreased. Moderate root cutting could increase maize grain yield,but the effect was not significant.
出处
《应用生态学报》
CAS
CSCD
2002年第12期1716-1718,共3页
Chinese Journal of Applied Ecology
基金
国家自然科学基金重大项目 (4 9890 3 3 0 )
中国科学院西部之光资助项目
关键词
伤根
玉米
光合作用
水分利用效率
影响
Root cutting, Photosynthetic rate, Aboveground biomass, Water use efficiency (WUE), Maize.
