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《Chinese Agricultural Science Bulletin》 2015-27
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Research Progress of High Photosynthetic Efficiency Breeding of Brassica napus

Wang Xuefang;Zhang Yaowen;Tian Jianhua;Zhao Xiaoguang;Guan Zhoubo;Hybrid Rapeseed Research Center of Shaanxi Province, Shaanxi Rapeseed Branch of National Oil Crops Genetic Improvement Center;  
Rapeseed is the most important oil crop, and stable increase of rapeseed yield is significant foredible oil security. In the past 30 years, China's rapeseed breeding has achieved significant progress in qualityimprovement while the rapeseed yield is in a wandering status. The high photosynthetic efficiency breeding ofBrassica napus could increase yield by changing the space of leaves, branches and pods, increase the netphotosynthetic rate and decrease respiration consumption. This paper reviewed research progress of highphotosynthetic efficiency breeding of rapeseed(Brassica napus L.) by 4 morphological traits: leaf type, plantheight, branching characteristics and pod type, and 5 physiological traits: dry matter, photosynthetic area, netphotosynthetic rate, chlorophyll content and root. The study pointed out 5 problems in current rapeseedbreeding: 1more studies on individual trait but less study on population traits; 2more studies on individualphotosynthetic factor but less holistic study; 3more studies on static traits but less study on dynamic traits;4 physiological high photosynthetic efficiency breeding of Brassica napus was still in an exploring stage;5 less research on root. Finally, the author suggested that the research of rapeseed highly photosyntheticefficiency breeding in the future should inherit the achievements of available rapeseed breeding, andcombining with high oil content breeding, mechanization, ecology breeding and heterosis.
【Fund】: 渭南市重大科技专项“紧凑型超高产杂交油菜新品种选育”(2013TCZX-1);; 陕西省科技统筹创新工程计划项目“高光效超高产杂交油菜新品种选育”(2014KTCQ02-01)
【CateGory Index】: S565.4
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