Cadmium uptake and mycorrhization by cacao clones in agroforestry and monoculture systems of Peruvian Amazon

IF 0.6 4区农林科学 Q4 AGRONOMY

Bioagro Pub Date : 2023-08-31 DOI:10.51372/bioagro353.7

G. Vallejos-Torres, Nery Gaona-Jimenez, Alberto Alva Arevalo, Christopher Paredes, Andi Lozano, Jorge Saavedra-Ramírez, Luis A. Arévalo, Keneth Reátegui, Wilfredo Mendoza-Caballero, César Marín

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引用次数: 0

Abstract

The production system influences the cadmium (Cd) content and mycorrhization in cocoa plantations. The objective of this study was to determine the effects of different production systems on Cd uptake and the presence of mycorrhizas in cacao clones in field conditions, in the Peruvian Amazon. Twelve subplots of 108 m2 were selected in representative cocoa cultivation systems under agroforestry (AF) and monoculture (MON), with the cocoa clones ICS and CCN. Significant differences and data distribution were evaluated using ANOVA, principal component analysis, and Tukey's tests. Mycorrhizal colonization was higher in the AF_ICS system (71.11%) while the length of the extraradical mycelium was higher in the AF_CCN system (17.23%). The highest Cd content in soils was found under the AF_CCN and AF_ICS systems, both with 0.39 mg kg-1. The Cd content in cacao roots, leaves, and beans were higher in the MON_CCN system with 1.87, 2.06, and 1.12 mg kg-1 respectively. Cocoa monocultures (with both clones) generally showed lower levels of mycorrhizal colonization than agroforestry systems, which in turn (also for both clones) presented higher Cd content in beans, even exceeding the limit established by the world health authorities.

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秘鲁亚马逊农林业和单一栽培系统中可可无性系对镉的吸收和菌根作用

生产系统影响可可种植园镉含量和菌根形成。本研究的目的是确定不同生产系统对秘鲁亚马逊地区田间条件下可可无性系镉吸收和菌根存在的影响。在农林业（AF）和单一栽培（MON）下的代表性可可种植系统中选择了12个108平方米的亚地块，其中可可无性系为ICS和CCN。使用方差分析、主成分分析和Tukey检验评估显著差异和数据分布。菌根定殖在AF_ICS系统中较高（71.11%），而根外菌丝体的长度在AF_CCN系统中较高，为17.23%。在MON_CCN体系中，可可根、叶片和豆类中的Cd含量较高，分别为1.87、2.06和1.12 mg kg-1。与农林系统相比，单一种植的可可（两个无性系都有）通常表现出较低的菌根定殖水平，而农林系统（两个克隆系也有）在豆类中表现出较高的镉含量，甚至超过了世界卫生当局规定的限值。

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来源期刊

Bioagro Agricultural and Biological Sciences-General Agricultural and Biological Sciences

CiteScore

1.40

自引率

37.50%

发文量

期刊介绍： Bioagro es una revista científica del Decanato de Agronomía de la Universidad Centroccidental “Lisandro Alvarado” (UCLA). Su periodicidad es cuatrimestral y se publica en los meses de enero, mayo y septiembre. Cada trabajo es revisado por al menos dos especialistas en el área, externos a la revista, de cuya opinión depende la aceptación definitiva. Se utiliza sistema de arbitraje doble ciego. La revista va dirigida, fundamental pero no exclusivamente, a profesionales y técnicos del área agrícola. Su objetivo es publicar trabajos científicos originales e inéditos en ciencias agrícolas que enfoquen aspectos de agronomía, botánica y propagación de plantas, entomología y zoología, suelos, fitopatología y protección vegetal, ingeniería agrícola, genética y mejoramiento de plantas, ecología, procesamiento de productos agrícolas, biotecnología y sociales. También pueden ser publicados artículos cortos en los que se presenten descubrimientos científicos, desarrollos tecnológicos y resultados de diagnósticos integrales, en la modalidad de Notas Técnicas. En Venezuela, se encuentra en las bibliotecas de todas las universidades e institutos de educación superior que ofrecen carreras agronómicas, así como de los entes oficiales de investigación agropecuaria. En el exterior, la revista llega a universidades y/o institutos de investigación agrícolas de todos los países de América Latina así como Estados Unidos, Canadá y España.