Journal
SCIENTIA HORTICULTURAE
Volume 295, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2021.110807
Keywords
Lycium barbarum L; Comprehensive evaluation; Nitrogen stress; Nitrogen use efficiency; N metabolism
Categories
Funding
- Ningxia Hui Autonomous Region Science and Technology Innovation Leading Talents Project [KJT2015014]
- Special Foundation for Agricultural Breeding of the Ningxia Hui Autonomous Region [2018NYYZ0106]
- Ningxia Hui Autonomous Region Agricultural Science and Technology independent Innovation Demonstration Project of the whole industrial chain [QCYL2020-YY-7]
- Key Research and Development Program Projects of Ningxia Hui Autonomous Region [2021BEF02001]
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The study found that Ningqi 1 had high nitrogen use efficiency while Ning1Y had low nitrogen use efficiency under nitrogen stress. The difference in glutamate synthase activity in the root may be responsible for the variation in nitrogen use efficiency between the two varieties.
Nitrogen (N) deficiency is a common problem for Lycium barbarum L. (goji) production in arid and semi-arid areas of northwestern of China. The development of new nitrogen-efficient goji cultivars under low nitrogen conditions is an important way to solve this problem. In the present study, morphological and nutrient-based parameters of Ningqi 1 (A), 1402 (B), Ningqi 7 (C), 1401 (D), and Ning1Y (E) were comprehensively evalu-ated under different nitrogen levels in the greenhouse. Finally, we concluded that Ningqi 1 (A) was high and Ning1Y (E) was low in nitrogen use efficiency under nitrogen stress. Difference of glutamate synthase activity in the root may be the reason for the difference in nitrogen use efficiency between Ningqi 1 (A) and Ning1Y (E). This work provides a reliable and comprehensive method to assess nitrogen utilization under low nitrogen conditions in goji and reveals possible physiological difference mechanisms.
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