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dc.contributor.author | Terán-Chaves, César Augusto | es_ES |
dc.contributor.author | Garcia-Prats, Alberto | es_ES |
dc.contributor.author | Polo-Murcia, Sonia Mercedes | es_ES |
dc.date.accessioned | 2023-06-12T18:01:34Z | |
dc.date.available | 2023-06-12T18:01:34Z | |
dc.date.issued | 2022-06 | es_ES |
dc.identifier.issn | 2073-4441 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/194109 | |
dc.description.abstract | [EN] Perennial ryegrass (Lolium perenne) is the predominant forage crop in the equatorial highland zones of Colombia due to its high nutritional value and versatility to produce both milk and meat. This study aimed to determine the relationship between the relative depletion of usable soil water and the Ks values of canopy expansion and closure stomatal of perennial ryegrass, as well as to identify the threshold values of water stress. The experiment was carried out in pots under a controlled environment condition. These pots were arranged in a completely randomized manner. The experiment consisted of five treatments¿including control treatment¿of water deficits in the soil that progressively increased the depletion level as the crop cycle developed. This generated a wide range of conditions in the growth stages. For each treatment, four repetitions were performed Biomass production was significantly affected by water stress. The results show that the upper and lower thresholds of Ks were 0.28 and 1.3 of the depletion level (p) of the total available water (TAW) in the soil for the expansion of the canopy (CE), and 0.25 and 1.1 p of the TAW for stomatal closure (gs). Quadratic functions were fitted for both the CE (R2 = 0.72) and CS (R2 = 0.73); moreover, the Ks function of FAO-AquaCrop with positive shape factor (sf) was as follows: sf = 11, RMSE 0.22 for CE, and sf = 4.3, RMSE 0.19 for gs. Our results indicate that ryegrass is moderately sensitive to water stress. The differences found between the Ks function of FAO and the experimental data call for the need to use modeling with parameters adapted for each case. | es_ES |
dc.description.sponsorship | The research leading to this report was supported by the Ministry of Agriculture and Rural Development of Colombia, the Corporacion Colombiana de Investigacion Agropecuaria, AGROSAVIA and Ibero-American Program of Cooperation INIA Doctorate/2015, the project 14152007O5490-692/2007. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | MDPI AG | es_ES |
dc.relation.ispartof | Water | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | Dry matter production | es_ES |
dc.subject | Forage | es_ES |
dc.subject | Stress coefficient Ks | es_ES |
dc.subject | Soil water depletion | es_ES |
dc.subject.classification | INGENIERIA HIDRAULICA | es_ES |
dc.title | Water Stress Thresholds and Evaluation of Coefficient Ks for Perennial Ryegrass in Tropical Conditions | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.3390/w14111696 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//CGL2013-48424-C2-1-R/ES/ADAPTACION AL CAMBIO GLOBAL EN SISTEMAS DE RECURSOS HIDRICOS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/INIA//1415- 2007O5490-692%2F2007/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural | es_ES |
dc.description.bibliographicCitation | Terán-Chaves, CA.; Garcia-Prats, A.; Polo-Murcia, SM. (2022). Water Stress Thresholds and Evaluation of Coefficient Ks for Perennial Ryegrass in Tropical Conditions. Water. 14(11):1-16. https://doi.org/10.3390/w14111696 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/w14111696 | es_ES |
dc.description.upvformatpinicio | 1 | es_ES |
dc.description.upvformatpfin | 16 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 14 | es_ES |
dc.description.issue | 11 | es_ES |
dc.relation.pasarela | S\472443 | es_ES |
dc.contributor.funder | MINISTERIO DE ECONOMIA Y EMPRESA | es_ES |
dc.contributor.funder | Instituto Nacional de Investigaciones Agrarias | es_ES |
dc.subject.ods | 06.- Garantizar la disponibilidad y la gestión sostenible del agua y el saneamiento para todos | es_ES |