Preliminary investigation of modern distribution of Malus resources in China
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    Abstract:

    Germplasm resources are important part of agricultural biology; China is one of the biggest origins and evolution center of Malus genus, it will enrich the diversity of Malus germplasm resources in China, if it strengthens the investigation and collection of Malus germplasm resources. To find out the distribution of Malus germplasm resource, expand number and types of Malus germplasm resources, and provide basic reference for the protection and scientific research, National Apple Germplasm Repository investigated the Malus germplasm resources in Northwest China, North China, Southwest China, Northeast China and East China during 2005-2016. The results showed that there were various types of Malus germplasm resources in China, which are distributed widely, 621 Malus germplasm resources were collected, the wild species were abundant in Northwest China, Southwest China and Northeast China, where has less apple landraces. The Malus germplasm resources in North China were dominated by apple landrace and the wild species were less. The current problem of wild species is the distribution area decreased year by year, from the previous large-scale scattered distribution gradually transformed concentrated distribution in small areas; apple landraces are facing the problem of frequent cutting, serious loss. The problems of protection and utilization were initially proposed based on the survey of Malus germplasm resources for consecutive 11 years.

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History
  • Received:March 25,2017
  • Revised:May 18,2017
  • Adopted:June 06,2017
  • Online: November 08,2017
  • Published:
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