Winegrape phenology and temperature relationships in the Lisbon wine region, Portugal
Winegrape phenology and temperature relationships in the Lisbon wine region, Portugal
复制标题
葡萄牙里斯本葡萄酒产区的酿酒葡萄物候与温度关系
DOI：
10.20870/oeno-one.2013.47.4.1558
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Santos
中科院分区：
文献类型：
--
作者：
A. Malheiro;R. Campos;H. Fraga;J. Eiras;J. Silvestre;J. Santos
目的：为了研究1990年至2011年期间里斯本葡萄酒产区（LWR）四个酿酒葡萄品种的物候特征、关系和趋势以及相关的温度关系。普兰尼洛）和白色（查塞拉斯和费尔纳皮雷斯）品种取自LWR的实验葡萄园。根据所有品种相似的成熟度水平确定收获日期。从这些数据，品种特性，时间趋势以及物候期和温度之间的关系进行了评估，通过逐步多元线性回归。开花是最敏感的温度在前几个月（3月至4月）。不同品种的物候时间之间的差异/相似性。除了少数例外，没有发现在1990-2011年期间的物候期的趋势，而几个显着的负斜率显示的物候间隔，这表明在物候定时累积的热效应的作用。强烈的相关性，观察物候期之间，特别是开花和veraison.Conclusion：这项研究突出了温度对物候，特别是在春季发挥的关键作用。此外，在此期间温度的升高将导致以下物候事件的时间提前。鉴于所发现的显著趋势，从长远来看，可能会发生物候变化，因此需要评估品种特性和对区域气候的反应。目前的工作是第一次尝试系统地研究物候的时间趋势和葡萄牙葡萄栽培区与温度的对应关系，为葡萄藤品种的发展和适用性提供了有价值的信息，这些信息决定了葡萄栽培实践和葡萄种植者的收入。
Aim: To investigate the characteristics, relationships and trends in the phenology of four winegrape varieties and associated temperature relationships in the Lisbon wine region (LWR), between 1990 and 2011.Methods and results: Budburst, flowering and veraison dates of red (Castelao and Aragonez, syn. Tempranillo) and white (Chasselas and Fernao Pires) varieties were taken from an experimental vineyard in the LWR. Harvest dates were determined based on a similar maturity level for all varieties. From these data, varietal characteristics, temporal trends as well as relationships between phenology and temperature were assessed through stepwise multivariate linear regressions. Flowering was the most sensitive to temperature in the preceding months (March-April). Differences/similarities between the phenological timing of the different varieties are presented. With few exceptions, no trends were found in phenophases over the 1990-2011 period, whereas several significant negative slopes were displayed for phenological intervals, suggesting a role for accumulated thermal effects in phenological timing. Strong correlations were observed between phenophases, especially between flowering and veraison.Conclusion: The study highlights the key role played by temperature on phenology, particularly during springtime. Furthermore, an increase in temperature during that period will cause an advance in the timing of the following phenological events. Given the significant trends found, phenological shifts may occur in the long term, emphasizing the need to assess varietal characteristics and responses to regional climate.Significance and impact of the study: The present work is the first attempt to systematically examine temporal trends in phenology and corresponding relationships with temperature in a Portuguese viticultural area, providing valuable information on the development and suitability of grapevine varieties, which determine viticultural practices and winegrower’s income.