| Chilling requirement of potted Lingwu Long Jujube for promoting early cultivation in greenhouse facility |
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| DOI：10.7606/j.issn.1000-7601.2022.02.06 |
| Key Words: Lingwu Long Jujube chilling requirement protected cultivation germination rate potted plant |
| Author Name | Affiliation | | ZHANG Lei | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | WAN Zhongwu | Ningxia Lingwu Daquan Forest Farm, Lingwu, Ningxia 751400, China | | LI Na | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | YANG Yang | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | MA GuoFei | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | XU Rui | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | HU Hongyuan | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China | | SHANG Yan | Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, CMA, Yinchuan, Ningxia 750002, China
Ningxia Key Lab of Meteorological Disaster Prevention and Reduction, Yinchuan, Ningxia 750002, China
Ningxia Institute of Meteorological Sciences, Yinchuan, Ningxia 750002, China |
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| Abstract: |
| This study used Lingwu Long Jujube as the experimental material to determine the chilling requirement of potted Lingwu Long Jujube and guide the early cultivation of Lingwu Long Jujube. Potted Lingwu Long Jujube was forced to dormant in cold storage, and then moved to greenhouse in batches for heating and germination. The chilling requirement of potted Lingwu Long Jujube was studied by analyzing the final germination rate under different cold storage times. The results showed that in the range of 0~7.2℃, with the increase of cold storage time, the final germination rate of potted Lingwu Long Jujube also increased. The germination rate had a logarithmic relationship with the cold storage time. If the germination rate was set at 70%~80%, the chilling requirement of potted Lingwu Long Jujube was 1 214～1 403 h, with an average of 1309 h, based on the ≤7.2℃ model and 0～7.2℃ model. Based on the research results, the protected horticultural base of Daquan Forest Farm carried out a trial production of a greenhouse from 2020 to 2021, which initially achieved the expected results: after the cold storage and heating treatment from July to September 2020, the potted Lingwu Long Jujube matured in early February 2021. |
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