Arid
DOI10.20870/oeno-one.2018.52.1.1782
Temporal stability of within-field variability of total soluble solids of grapevine under semi-arid conditions: a first step towards a spatial model
Verdugo-Vasquez, N.1; Acevedo-Opazo, C.2; Valdes-Gomez, H.3; Ingram, B.4; Garcia de Cortazar-Atauri, I.5; Tisseyre, B.6
通讯作者Acevedo-Opazo, C.
来源期刊OENO ONE
ISSN2494-1271
出版年2018
卷号52期号:1页码:15-30
英文摘要

Aims: This work focuses on the study of the intra- and inter-annual Temporal Stability of Within-Field Variability (TSWFV) of Total Soluble Solids (TSS) as an estimate of grape maturity.


Methods and results: The experiment was carried out between 2009 and 2015 in four fields located in the Maule Valley, Chile, under irrigated conditions. Each field corresponded to a different cultivar (namely Cabernet-Sauvignon, Chardonnay, Sauvignon blanc and Carmenere), and data collection ranged over two to four years depending on the field. A regular sampling grid was designed within each field, and TSS was measured at each site of the grid on different dates (from veraison to harvest). A Kendall test (W) was used to analyse the TSWFV of TSS between all dates for each cultivar and season. A Spearman’s rank correlation coefficient (r(s)) was used to analyse the relationships between each sampling date and the date of harvest considered as the reference. Results of the study highlighted high within-field variability in TSS. The W test showed significant intra-and inter-annual TSWFV, and r(s) values showed a high and significant correlation between sampling dates.


Conclusion: These results are of interest for precision viticulture since, under the conditions of the experiment, the spatial patterns of the TSS maps obtained 40 days before harvest remain the same until harvest. Therefore, early target sampling of TSS may provide a good estimate of the spatial variability of grape maturity at harvest.


Significance and impact of the study: The inter-annual stability of the TSS spatial patterns makes it possible to propose a simple empirical spatial model that allows estimation of TSS values for the whole field using only one reference measurement, provided that historical data are available.


英文关键词berry maturity ripening early zoning Vitis vinifera differential harvest spatial model
类型Article
语种英语
国家Chile ; England ; France
收录类别SCI-E
WOS记录号WOS:000429313600002
WOS关键词VITIS-VINIFERA L. ; VINE WATER STATUS ; WINEGRAPE PRODUCTION ; DEFICIT IRRIGATION ; NEW-ZEALAND ; LEAF-AREA ; MANAGEMENT ; QUALITY ; DELINEATION ; PHENOLOGY
WOS类目Food Science & Technology
WOS研究方向Food Science & Technology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/211881
作者单位1.Ctr Invest Intihuasi, Inst Invest Agr INIA, Colina San Joaquin S-N,POB 36-B, La Serena, Chile;
2.Univ Talca, Fac Ciencias Agr, CITRA, 2 Norte, Talca 685, Chile;
3.Pontificia Univ Catolica Chile, Dept Fruticultura & Enol, Vicuna Mackenna 4860, Santiago, Chile;
4.Cranfield Univ, Cranfield Soil & Agrifood Inst, Coll Rd, Cranfield MK43 0AL, Beds, England;
5.INRA, US AGROCLIM 1116, F-84914 Avignon, France;
6.Univ Montpellier, ITAP, Montpellier SupAgro, Irstea, Bat 21,2 Pl Pierre Viala, F-34060 Montpellier, France
推荐引用方式
GB/T 7714
Verdugo-Vasquez, N.,Acevedo-Opazo, C.,Valdes-Gomez, H.,et al. Temporal stability of within-field variability of total soluble solids of grapevine under semi-arid conditions: a first step towards a spatial model[J],2018,52(1):15-30.
APA Verdugo-Vasquez, N.,Acevedo-Opazo, C.,Valdes-Gomez, H.,Ingram, B.,Garcia de Cortazar-Atauri, I.,&Tisseyre, B..(2018).Temporal stability of within-field variability of total soluble solids of grapevine under semi-arid conditions: a first step towards a spatial model.OENO ONE,52(1),15-30.
MLA Verdugo-Vasquez, N.,et al."Temporal stability of within-field variability of total soluble solids of grapevine under semi-arid conditions: a first step towards a spatial model".OENO ONE 52.1(2018):15-30.
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