张磊,万仲武,李娜,杨洋,马国飞,徐蕊,胡宏远,尚艳.盆栽灵武长枣设施促早栽培的需冷量研究[J].干旱地区农业研究,2022,40(2):47~51 |
盆栽灵武长枣设施促早栽培的需冷量研究 |
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 |
中文关键词: 灵武长枣 需冷量 设施栽培 萌芽率 盆栽 |
英文关键词:Lingwu Long Jujube chilling requirement protected cultivation germination rate potted plant |
基金项目:宁夏自然科学基金(2019AAC03253);中央财政林业科技推广示范项目“设施灵武长枣根域限制栽培技术示范推广”(\[2019\] ZY 05号) |
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中文摘要: |
以盆栽灵武长枣为试验材料,利用保鲜冷库在2℃条件下对盆栽灵武长枣进行冷藏,强制其休眠,将经过20~65 d共10个冷藏时间处理的盆栽灵武长枣移至日光温室升温催芽,通过分析不同冷藏时段下盆栽灵武长枣的萌芽率,确定其需冷量。研究结果显示,在0~7.2℃范围内,随着冷藏时间增加,盆栽灵武长枣的萌芽率也在增加,萌芽率与冷藏时间呈对数关系,若设定最终萌芽率达到70%~80%时的低温累积量已满足打破休眠所需,则依据≤7.2℃模型和0~7.2℃模型估算的盆栽灵武长枣需冷量为1 214~1 403 h,平均为1 309 h。根据研究结果,大泉林场设施园艺基地于2020—2021年度开展了1个温棚的试产,初步达到预期效果:经2020年7—9月的冷藏-升温处理,于2021年2月上旬盆栽灵武长枣陆续成熟。 |
英文摘要: |
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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