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DOI | 10.1016/j.scienta.2019.02.025 |
Modeling phenology of four grapevine cultivars (Vitis vinifera L.) in Mediterranean climate conditions | |
Ortega-Farias, S.1; Riveros-Burgos, C. | |
发表日期 | 2019 |
ISSN | 0304-4238 |
EISSN | 1879-1018 |
卷号 | 250页码:38-44 |
英文摘要 | A study was carried out to develop and validate models that simulate grapevine phenology of the cultivars Cabernet Sauvignon, Merlot, Chardonnay and Sauvignon Blanc growing under Mediterranean climate conditions. In this study, phenology models were developed using a monomolecular equation, where the dependent and independent variables were the Eichhorn and Lorenz (1977) phenological (ELP) scale modified by Coombe (1995) and growing degree days (GDD), respectively. From the beginning of budburst to harvest, measurements of ELP and GDD were collected weekly from 49 commercial vineyards located in the Maule Region, Chile (between 34 degrees 40' and 36 degrees 33' south latitude, 72 degrees 38' and 70 degrees 18' west longitude). The results showed significant nonlinear correlations between the GDD and ELP scale, with values of R-2 ranging between 0.95 and 0.98. Moreover, the validation indicated that the phenological models were able to predict the ELP scale with values of the root mean square error (RMSE), mean absolute error (MAE) and agreement index (dr) raging between 1.6-3.0, 1.3-2.5 and 88-89%, respectively. Major disagreements were observed near the harvest stage (ELP = 40) which mainly depends on farm management. |
WOS研究方向 | Agriculture |
来源期刊 | SCIENTIA HORTICULTURAE |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/97724 |
作者单位 | 1.Univ Talca, Res & Extens Ctr Irrigat & Agroclimatol CITRA, Fac Agr Sci, Talca, Chile; 2.Univ Talca, Res Program Adaptat Agr Climate Change A2C2, Fac Agr Sci, Talca, Chile |
推荐引用方式 GB/T 7714 | Ortega-Farias, S.,Riveros-Burgos, C.. Modeling phenology of four grapevine cultivars (Vitis vinifera L.) in Mediterranean climate conditions[J],2019,250:38-44. |
APA | Ortega-Farias, S.,&Riveros-Burgos, C..(2019).Modeling phenology of four grapevine cultivars (Vitis vinifera L.) in Mediterranean climate conditions.SCIENTIA HORTICULTURAE,250,38-44. |
MLA | Ortega-Farias, S.,et al."Modeling phenology of four grapevine cultivars (Vitis vinifera L.) in Mediterranean climate conditions".SCIENTIA HORTICULTURAE 250(2019):38-44. |
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