Statistical identification of chilling and heat requirements for apricot flower buds in Beijing, China
文献类型：期刊论文
| 作者 | Guo,Liang; Xu,Jianchu ; Dai,Junhu; Cheng,Jimin; Luedeling,Eike
|
| 刊名 | SCIENTIA HORTICULTURAE
 |
| 出版日期 | 2015-11-12 |
| 卷号 | 195页码:138-144 |
| 关键词 | Apricot Chilling model Chilling requirement Flower buds Forcing model Heat requirement |
| 英文摘要 | Instead of the commonly used approach of conducting controlled experiments to estimate chilling and heat requirements (CR and HR) of fruit trees, the statistical method of Partial Least Squares (PLS) regression was applied to identify the CR and HR of apricot (Prunus armeniaca L.) in Beijing, China by correlating first flowering dates of apricot with daily chilling and heat accumulation during 1963-2010. Three common chilling models (the 0-7.2 degrees C, Utah and Dynamic Models) and one forcing model (the Growing Degree Hour Model) were used to convert daily temperature data into daily chill and heat accumulation rates. The results indicated that PLS regression analysis is a useful approach to estimate the CR and HR of fruit trees wherever phenology and climate observations have been conducted for long periods. Use of all chilling models indicated similar chilling periods for apricot in Beijing (mid-September to early March), while the identified forcing period started in early January and extended to the first flowering date for each year. The Dynamic Model appeared to be the most accurate model with smallest year-to-year variation in chill accumulated during the chilling period (coefficient of variation of only 7.5%). Using the Dynamic Model for chill, and the Growing Degree Hour Model for heat quantification, the CR of apricot in Beijing was determined at 75 6 Chill Portions (CP) and the HR at 3055 938 Growing Degree Hours (GDH). (C) 2015 Elsevier B.V. All rights reserved. |
| 类目[WOS] | Horticulture |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | TEMPERATE FRUIT-TREES ; WINTER CHILL ; DORMANCY BREAKING ; PREDICTION MODEL ; REST COMPLETION ; CLIMATE-CHANGE ; CULTIVARS ; PHENOLOGY ; PLANTS ; DEPENDENCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364884100016 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/25246]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 推荐引用方式 GB/T 7714 | Guo,Liang,Xu,Jianchu,Dai,Junhu,et al. Statistical identification of chilling and heat requirements for apricot flower buds in Beijing, China[J]. SCIENTIA HORTICULTURAE,2015,195:138-144. |
| APA | Guo,Liang,Xu,Jianchu,Dai,Junhu,Cheng,Jimin,&Luedeling,Eike.(2015).Statistical identification of chilling and heat requirements for apricot flower buds in Beijing, China.SCIENTIA HORTICULTURAE,195,138-144. |
| MLA | Guo,Liang,et al."Statistical identification of chilling and heat requirements for apricot flower buds in Beijing, China".SCIENTIA HORTICULTURAE 195(2015):138-144. |
入库方式： OAI收割
来源：昆明植物研究所
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