| 陈晓丹.甜樱桃不同品种需冷量评估初探[J].中国南方果树,2017,46(3): |
| 甜樱桃不同品种需冷量评估初探 |
| Preliminary evaluation of chilling requirement of sweet cherry cultivars |
| 投稿时间：2016-12-12 修订日期：2016-12-12 |
| DOI： |
| 中文关键词: 甜樱桃 南方地区 需冷量 短低温品种 |
| 英文关键词:Sweet cherry Warm region Chilling requirement Low chilling requirement cultivars |
| 基金项目:农业部“948”项目（2013-Z23）；上海市科委项目（10391900100） |
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| 中文摘要: |
| 研究甜樱桃品种的需冷量，筛选适合南方地区栽植的中、低需冷量品种。通过离体湿沙培养法，将低温积累到一定时间的甜樱桃枝条置于适宜条件下培养，3周后统计萌芽率，确定各品种需冷量区间范围，分析甜樱桃萌芽率变化和品种差异，并对不同地区的相同甜樱桃品种的需冷量进行比较。结果表明，需冷量在400~800h的品种最多，其中<600h的品种28个，发现采集样品时各品种所处的休眠阶段不同，甜樱桃需冷量具有遗传特性，样品间区域差异较小。 |
| 英文摘要: |
| To screening low and moderate chilling requirement cultivars of sweet cherries for warm region of China, shoots of 64 cultivars were collected and cultured in vitro after cold treatment. Rate of bud break was measured after 3 weeks and the chilling requirement range were calculated. The same cultivars from different regions were also evaluated. The results showed that the patterns of bud break of sweet cherries cultured in vitro were cultivar- and dormancy stage- dependent, and no significant difference of chilling requirement for a cultivar was observed between different regions. Chilling requirement of most cultivars were fallen into 400~800 hours range and those of twenty-eight cultivars were less than 600 hours. |
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