Specialized Identification and Comprehensive Evaluation of Hulless Barley Varieties
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1.Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081;2.Changdu Academy of Agricultural Science, Tibet Changdu, 854000;3.Agriculture and animal husbandry extension and service center of Haixi Prefecture, Qinghai Delinghua 817000;4.Institute of Gannan Tibetan Autonomous Prefecture Agricultural Science, Gansu Hezuo 747000;5.Qinghai Academy of Agricultural and Forestry Sciences/Key Laboratory of Barley Genetics and Breeding in Qinghai Province,Xining 810016

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Foundation projects: National Key R&D Program of China (2019YFD1001704,2019YFD1001700); Agricultural Science and Technology Innovation Program of CAAS and Fundamental Research Funds for Central Non-Profit (Y2022XK25 )

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    Abstract:

    The hulless barley (locally referred qingke) is the staple food crop in the Qinghai-Tibet Plateau in China, and ensuring its sustainable production is crucial to both food and national security. Since the straw of the hulless barley is of importance in yak feeding, breeding for new varieties showing dual-purpose end-use in grain consumption and forage becomes of interest. In order to establish an evaluation system suitable for hulless barley varieties, this study performed the field trials at two locations (Changdu city of Tibet; Haixi city of Qinghai) for two years (2020 and 2021) to record the performance at 15 agronomic and yield-related traits and the responses to five fungal pathogens. The plants including straw and grains at the milk maturity stage were harvested to measure the feeding quality by quantifying 15 parameters. These datasets were further evaluated by clustering analysis, multiple comparisons, principal component analysis, gray relation analysis and the analysis of productivity and stability. An evaluation method was established for selecting the hulless barley varieties for dual-purpose end-use. With the evaluation criteria, the variety Ganqing 9 was identified suitable for both grain consumption and forage. In addition, Kunlun 15 which had high grain yield production were suggested for grain consumption, and Kangqing 7 and Zangqing 22 which had high biomass and feeding quality were qualified for taking as silage.

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History
  • Received:September 17,2022
  • Revised:October 08,2022
  • Adopted:
  • Online: March 14,2023
  • Published: March 14,2023
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