Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (9): 1756-1761.DOI: 10.3969/j.issn.1000-2561.2020.09.005

• Germplasm Resources, Genetics & Breeding • Previous Articles     Next Articles

Breeding of a New Cassava Cultivar ‘South China No. 16’

LU Cheng1,*,CHEN Xin1,*,ZHOU Xincheng1,XIA Zhiqiang1,SUN Yufang1,WANG Haiyan1,ZOU Meiling1,LI Kaimian2,LI Zhaogui3,XIAO Ziying4,ZHOU Bin5,HAN Quanhui6,ZHANG Peng7,WANG Wenquan1,**()   

  1. 1. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    2. Tropical Crops Genetic Resource Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    3. Agriculture Bureau of Wuming County, Guangxi Zhuang Autonomous Region, Wuming, Guangxi 530100, China
    4. Hepu Institute of Agricultural Science and Technology, Hepu, Guangxi 536100, China
    5. Guilin Academy of Agricultural Sciences, Guangxi, Guilin, Guangxi 541006, China
    6. Expriment Farm, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China
    7. Shanghai institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
  • Received:2019-09-20 Revised:2019-12-03 Online:2020-09-25 Published:2020-10-16
  • Contact: LU Cheng,CHEN Xin,WANG Wenquan

Abstract:

Cassava, an important crop for industrial material in China, has potential for food and feeding. ‘South China No. 16’ (‘SC16’) is a new approved variety, which originating from F1 by crossing between female parent ‘SC8’ and male parent ‘Q10’ (I93/0665), and tested by seedling test, primary and advanced line performance test, regional line test and productive test. The average fresh root yields of ‘SC16’ in the regional trials and productive trials was 50.15 t/hm2 and 45.82 t/hm2, 55.45% and 35.85% more over ‘SC205’ , the main cultivated variety in China, respectively. The root starch content of ‘SC16’ was 25.42% and 26.10%, which was slightly less than that of ‘SC205’ . The average cyanogenic glycosides content was 29.70 μg/g in its fresh root, meaning that ‘SC16’ is a sweet cassava variety. Taken together, ‘SC16’ is a new variety with excellent plant type, high fresh root yield, lodging resistance, concentrated tuberization and better for high dense planting and mechanized harvesting, and could be used for starch industry, food processing and feeding. ‘SC16’ is suitable for planting in the coastland of Guangxi and Guangdong province, Hainan and Southeast Asia.

Key words: Manihot esculenta Crantz, hybridization, field trail, ideotype, fresh root yield

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