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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (28): 57-63.doi: 10.11924/j.issn.1000-6850.casb16030019

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Adaptability Evaluation of Amorphophallus albus

Liu Erxi1,2, Yang Chaozhu1, Zheng Xiaojiang3, Mou Fanggui1, Qin Yu1, Pan Yani1,Wu Ping4, Wang Lin5, Xiong Kun6, Xie Yimei6   

  1. (1Enshi Autonomous Prefecture Academy of Agricultural Sciences, Enshi Hubei 445000;2School of Forestry and Horticulture, Hubei University for Nationalities, Enshi Hubei 445000;3School of Biological and Technology, Hubei University for Nationalities, Enshi Hubei 445000;4Hubei Yizhi Konjac Biotechnology Co., Ltd, Changyang Hubei 443500;5Kefeike Konjac Technology Co., Ltd, Xianfeng Hubei 445600;6Institute of Products Quality Supervision and Inspection of Enshi Tujia andMiao Nationalities Autonomous Prefecture, Enshi Hubei 445000)
  • Received:2016-03-02 Revised:2016-03-27 Accepted:2016-04-28 Online:2016-10-11 Published:2016-10-11

Abstract: Introduction is the premise for large scale cultivation and gene exchange. The authors evaluated adaptability of Amorphophallus germplasm in Enshi by regional trial, manipulative field experiment and laboratory test. The results showed that: in 450-1250 m altitude region of Enshi, Amorphophallus albus could overwinter, grow and develop normally, and complete its life cycle in more than 4 years. The vegetative propagation test showed that the number of rhizome increased with the bulbous mass, the ratio of rhizome mass to total mass was 56.93%, its propagation coefficient was 9.83, higher than 3.88 of Qingjiang A. konjac. The sexual propagation test showed that the florescence was short, generally 5-10 d, florescence extended with the increase of population number, the average seed number was 54 for mean individual, and the hundred-grain weight was 19.18, 17.05, 26.14 g respectively during 2010-2012, the average was 23.93 g, 77.52% higher than that of A. konjac (13.48 g ) in the corresponding year. Drought stress seriously affected the propagation, mainly reduced the number of rhizomes and the ratio of rhizome mass. KGM content in flour and flour yield showed that the quality of Amorphophallus albus was better than that of A. konjac, while the 40-100 mesh flour yield could be used to quickly evaluate albus quality. Amorphophallus albus was unsuited for field cultivation in Enshi, but it could be used in breeding, while evaluation indexes such as anti-disease resistance, photosynthesis and high-temperature resistance should be added to construct the introduction evaluation system for Amorphophallus resources.

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