Gas exchange in young Hevea brasiliensis (Willd. Ex A. Juss.) Müll. Arg. (Euphorbiaceae) plants in Antioquia (Colombia)

Córdoba-Gaona, Óscar de Jesús; Monsalve-García, Danilo Augusto; Hernández-Arredondo, Juan David; Guerra-Hincapié, Juan José; Gil‐Restrepo, Juan Pablo; Martínez-Bustamante, Enrique; Unigarro, Carlos Andrés

doi:10.21930/rcta.vol19_num1_art:847

Cited by 2 publications

(2 citation statements)

References 12 publications

(9 reference statements)

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“…In this sense, Córdoba‐Gaona et al. (2018) consider it necessary to know the behavior of natural rubber plantations and the functioning of different genotypes in rubber‐producing zones of Colombia to determine relationships between climatic characteristics with defoliation‐refoliation patterns and their dynamics with the occurrence of diseases. In a complementary way, Rivano et al.…”

Section: Discussionmentioning

confidence: 99%

“…With the improvement and precision of the current geographic information systems, it is necessary to carry out new zoning by a biophysical aptitude for the crop and the determination of escape zones in Colombia. New agroecological zoning based on updated edaphic and climatic information will allow Colombian producers to decide to cultivate rubber in the areas that have the best environmental conditions (Córdoba‐Gaona et al., 2018). There is a relationship between the latex yield of natural rubber trees and the climatic and edaphic variables of the regions where this species is planted (Rao et al., 1998).…”

Section: Introductionmentioning

confidence: 99%

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Agroecological and South American leaf blight escape zones for rubber cultivation in Colombia

et al. 2022

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In agriculture, agroclimatic zoning procedures through geographic information systems provide producers, technical assistants, decision-makers, and investors with land-use planning and decision-making tools. This study aims at identifying and delimiting areas suitable for the cultivation of rubber [Hevea brasiliensis Willd. ex A. Juss.) Müll. Arg.] in Colombia, using the species requirements at a scale of 1:100,000, as well as identifying escape zones for the South American leaf blight (SALB) disease (caused by the fungus Pseudocercospora ulei). The study was carried out following the agroecological zoning methodology for the definition of land use proposed by the Food and Agriculture Organization of the United Nations. Spatial analysis tools were used to raster data with ArcGIS Desktop 10.7, incorporating and evaluating climatic and soil variables. The obtained results showed that there are 5,480,543 ha suitable for cultivating natural rubber in Colombia. However, these areas present favorable climatic conditions for the development of the SALB. INTRODUCTIONNatural rubber [Hevea brasiliensis (Will. Ex A. Juss.) Müll.Arg.] is a fast-growing plant of tropical origin adapted to various environmental conditions. It is cultivated in the tropicequatorial region between 10˚N and S latitude, with higher productivity from 6˚N and S latitude (Escobar-Acevedo et al.,Abbreviations: EZ, Escape zones; SALB, South American leaf blight.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Agroecological and South American leaf blight escape zones for rubber cultivation in Colombia

et al. 2022

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Gas exchange efficiency in Cocoa – Spanish elm agroforestry system in the northwest Antioquia, Colombia

Gómez-Yarce

Mompotes-Largo

López-Castro

et al. 2020

Rev. Fac. Nac. Agron. Medellín

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The cultivation of cocoa (Theobroma cacao L.) under agroforestry systems, generates beneficial environmental conditions for cocoa crop physiology. An experiment was conducted to evaluate the effect of shade trees (Spanish elm trees - Cordia alliodora (Ruiz & Pavon) Oken) planted along with cocoa (clone CCN51) under an agroforestry system on cocoa’s gas exchange parameters regarding the reduction of the light intensity over the cocoa-leaf canopy. The experiment was developed in the Centro de Investigación el Nus - Agrosavia, located in the municipality of San Roque, Antioquia. The experimental design used was a randomized complete block design for the cocoa planting distances from the first row of Spanish elm trees interfacing with the cocoa plantation (4 m, 7 m, 10 m, 13 m). The statistical analysis was performed by estimating the area under the curve (AUC) of each variable, using the trapezoid equation of the statistical environment SAS® 9.4, an analysis of variances was performed to determine if there were statistical differences between treatments, and Tukey’s test at 5% probability was used to estimated statistical differences between means. There were significant differences in the treatments regarding the net photosynthetic rate (A), stomatal conductance (gs), and transpiration rate (E). The highest values of gas exchange parameters were found in the plants located 13 m from elm trees, while the lowest values were presented at 4 m. Plants at 7 m and 10 m always showed intermediate values for all gas exchange parameters. In the same sense, plants at 13 m had a higher radiation use efficiency (RUE) compared to plants at 4 m. The arboreal component modified the environmental conditions on cocoa trees regarding its distribution, generating a differential response to the physiological behavior of cocoa plants.

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Gas exchange in young Hevea brasiliensis (Willd. Ex A. Juss.) Müll. Arg. (Euphorbiaceae) plants in Antioquia (Colombia)

Cited by 2 publications

References 12 publications

Agroecological and South American leaf blight escape zones for rubber cultivation in Colombia

Agroecological and South American leaf blight escape zones for rubber cultivation in Colombia

Gas exchange efficiency in Cocoa – Spanish elm agroforestry system in the northwest Antioquia, Colombia

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