Repositorio
Institucional

Borie, Fernando

Castillo, Claudia

Solano, Jaime

Aguilera, Paula

Debouzy, Sacha

Catalan, Rocio

Ruiz, Antonieta

de Souza, Pedro M.

Sieverding, Ewald

Do root interactions between wheat and non-mycorrhizal ancestral plants influence fungal activity and soil quality in an Andisol?

INST INVESTIGACIONES AGROPECUARIAS - INIA

CHILEAN JOURNAL OF AGRICULTURAL RESEARCH

en

Cover crops in sustainable agrosystems are becoming more and more applied. However, legacy effects on the growth of companion plants or following crops in rotation systems are still poorly understood, especially when Andean and ancestral crops are involved. In this work, two wheat (Triticum aestivum L.) cultivars differing in P efficiency (Kiron higher than Chevignon) were cropped together with two non-mycorrhizal plants, quinoa (Chenopodium quinoa Willd.) and amaranth (Amaranthus spp.), to study the interactions and the effects produced in the wheat rhizosphere, plant growth and mycorrhizal parameters at harvest. The plants were grown in a three-compartment plexiglass rhizobox containing an Andisol. The central compartment separated by a nylon mesh was used for the cover crops, and wheat was sown on each side. A habitual pre-crop rapeseed (Brassica napus L.), also non-mycorrhizal, was used as control. At harvest, soil (pH, available P, acid phosphatase, microbial-P), plant (phytomass, organic acid exudation, P uptake efficiency, Zn and Mn in shoots), and mycorrhizal properties (root colonization, glomalin, spore number, and hyphal density) were measured in both wheat rhizospheres. Results show that wheat cultivars differed in soil and plant characteristics affected by non-host plants being the most efficient one, better. Surprisingly, mycorrhizal propagules were not depressed, and even fungal spores with amaranth (10543 spores 100 g-1) increased 2.6-fold than control (3910 spores 100 g-1) in the P-efficient cultivar. Data obtained suggest being cautious in selecting the best wheat cultivar when using these ancestral crops, especially for wheat natives' smallholders working in this type of soil.

2023

artículo original

10.4067/S0718-58392023000500589

PDF

Amaranth

cover crops

phosphorous

quinoa

rapeseed

Agricultura

Amaranto

cultivos de cobertura

fosforoso

quinua

colza

589.0

601

artículo original

versión publicada

acceso abierto

acceso abierto

WOS:001054057000001

0718-5839

verde# dorado

Agricultura

ANID-FONDECYT 1191551

ANID FONDECYT 1191551