| dc.contributor | Acevedo-Opazo, César | |
| dc.contributor | Valdés-Gómez, Héctor | |
| dc.contributor | Universidad de Talca | |
| dc.creator | Verdugo-Vásquez, Nicolás Javier | |
| dc.date | 2017-04-12T18:30:12Z | |
| dc.date | 2022-08-16T21:38:16Z | |
| dc.date | 2017-04-12T18:30:12Z | |
| dc.date | 2022-08-16T21:38:16Z | |
| dc.date | 2015 | |
| dc.date | 2013 | |
| dc.date.accessioned | 2023-08-22T03:26:33Z | |
| dc.date.available | 2023-08-22T03:26:33Z | |
| dc.identifier | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
| dc.identifier | https://hdl.handle.net/10533/184356 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8314969 | |
| dc.description | An experiment was conducted in order to study the spatial variability of the grapevine phenology of a vine field and determine the main factors influencing it. The study was conducted in a Cabernet Sauvignon vine field of 1.56 ha located at the Panguilemo Experimental Station, Talca (35° 22.2' S,71° 35.39' W, 121 m.a.s.l.), during 2009-10, 2010-11 and 2011-12 growing seasons. Phenology recordings were made periodicaly (every 7 days), using the system proposed by Eichhorn and Lorenz modified by Coombe in a regular grid of 18 sites. Moreover, in the same phenology evaluation sites were measured several variables of soil (bulk density, field capacity, wilting point, water holding capacity at effective rooting depth, altitude of the field and organic matter content).Other additional variables related to vegetative expression (shoot length, canopy porosity and pruning weight), and midday stem water potential were measured at three key phenological stages.In addition, soil temperature at two depths (15 and 30 cm), water table fluctuation (piezometer), arginine content in roots and air temperature and relative humidity were measured with different sampling intensity in the vine field. The main results show that the vine phenology presented significant spatial variability in the vine field, which was well structured spatially, identifying two areas significantly different in their phenological development. Zone 1 comprised 78% of the surface of the vine field and presented the most advanced phenological stages during all 3 seasons, while zone 2 represented 22% of the remaining area with a later phenological development compared to zone 1. The main factor behind this variation corresponded to soil conditions (organicmatter, bulk density, water holding capacity and altitude), which were well correlated with vine phenology and would explain the observed spatial variability. Also differences in soil temperature at 15 cm depth and air temperature between the two areas were identified as important factors that could explain the differences in sprouting of zones 1 and 2 of the field under consideration. | |
| dc.description | PFCHA-Becas | |
| dc.description | Magister en Horticultura | |
| dc.description | 68p. | |
| dc.description | PFCHA-Becas | |
| dc.description | TERMINADA | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.relation | instname: Conicyt | |
| dc.relation | reponame: Repositorio Digital RI2.0 | |
| dc.relation | handle/10533/108040 | |
| dc.relation | info:eu-repo/grantAgreement/PFCHA-Becas/RI20 | |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Estudio de la variabilidad espacial de la fenología en vid cv cabernet sauvignon e implementación de un modelo de predicción | |
| dc.type | Tesis Magíster | |
| dc.type | info:eu-repo/semantics/masterThesis | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Tesis | |
| dc.coverage | Talca | |
