气候变化领域集成服务门户(CCPortal): Responses in growth and physiological traits in two Populus × canadensis clones (‘I-214’ and ‘I-488’) submitted to different irrigation frequencies in central Chile

CCPortal

DOI	10.1016/j.foreco.2019.117455
	Responses in growth and physiological traits in two Populus × canadensis clones (‘I-214’ and ‘I-488’) submitted to different irrigation frequencies in central Chile
	Cañete-Salinas P.; Zamudio F.; Yáñez M.; Gyenge J.; Valdés H.; Espinosa C.; Jara-Rojas F.; Venegas J.; Retamal L.; Acevedo-Opazo C.
发表日期	2019
ISSN	0378-1127
卷号	449
英文摘要	Water is the main limiting factor for poplar plantations in the Mediterranean zone of central Chile. Overall, water requirements in these plantations may be estimated using climatic and soil moisture data. However, irrigation strategies can be improved if growth and plant water status are considered. The aim of this study was to assess the growth (diameter increments) and leaf-level physiology (xylem water potential (Ψx) and stomatal conductance (gs)) responses of two Populus × canadensis clones (‘I-214’ and ‘I-488’) to different irrigation frequencies. The study was carried out during three growing seasons in commercial plantations located in the Maule Region, central Chile. Three irrigation frequencies were evaluated: an over-irrigation frequency (21 days) (T1); a standard irrigation frequency used operationally in the area (28 days) (T2) and a deficit irrigation frequency (35 days) (T3), while the watering time was held constant for all treatments. Although both clones belong to the same interspecific cross, they differed in their growth and physiological responses to water deficit. Compared with ‘I-214’, ‘I-488’ was more sensitive to lower irrigation frequencies (higher water restriction), which decreased the diameter increments, the water potential and stomatal conductance. The results suggest that the use of physiological and climatic information may improve water management on commercial poplar plantations. © 2019
英文关键词	DBH increments; Irrigation frequency; Poplar clones; Stomatal conductance; Xylem water potential
语种	英语
scopus关键词	Cloning; Forestry; Physiological models; Physiology; Plants (botany); Soil moisture; Water management; DBH increments; Irrigation frequency; Poplar clones; Stomatal conductance; Xylem water potential; Irrigation; clone; comparative study; diameter; growing season; growth; growth response; irrigation; limiting factor; Mediterranean environment; physiological response; physiology; stomatal conductance; water stress; xylem; Clones; Forestry; Frequencies; Growth; Irrigation; Physiology; Plantations; Water Management; Chile; Maule; Populus x canadensis
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155849
作者单位	Research and Extension Centre for Irrigation and Agroclimatology (CITRA), Faculty of Agricultural Sciences, Universidad de Talca, Avenida Lircay s/n, Talca, Chile; Poplar Technology Center (CTA), Faculty of Forestry, Universidad de Talca, Avenida Lircay s/n, Talca, Chile; Núcleo Científico Multidisciplinario, Universidad de Talca, Avenida Lircay s/n, Talca, Chile; Consejo Nacional de Investigaciones Científicas y Técnicas - CONICET, AER Tandil INTA, EEA Balcarce, Argentina; Pontificia Universidad Católica de Chile, Departamento de Fruticultura y Enología, Vicuña Mackena 4860, Santiago, Chile; Research and Development Department, Orafti Chile S.A. (A BENEO Group Company), km 445 Ruta 5 Sur, Pemuco, 391000, Chile; Agrícola y Forestal el Álamo Ltda., fundo Copihue s/n, ruta 5 sur, km 333, Retiro, Chile
推荐引用方式 GB/T 7714	Cañete-Salinas P.,Zamudio F.,Yáñez M.,等. Responses in growth and physiological traits in two Populus × canadensis clones (‘I-214’ and ‘I-488’) submitted to different irrigation frequencies in central Chile[J],2019,449.
APA	Cañete-Salinas P..,Zamudio F..,Yáñez M..,Gyenge J..,Valdés H..,...&Acevedo-Opazo C..(2019).Responses in growth and physiological traits in two Populus × canadensis clones (‘I-214’ and ‘I-488’) submitted to different irrigation frequencies in central Chile.Forest Ecology and Management,449.
MLA	Cañete-Salinas P.,et al."Responses in growth and physiological traits in two Populus × canadensis clones (‘I-214’ and ‘I-488’) submitted to different irrigation frequencies in central Chile".Forest Ecology and Management 449(2019).