Effect of Oats and Wheat Genotype on In Vitro Gas Production Kinetics of Straw

Increases in cereals grain yield in the last decades have increased the accumulation of straw on the soil after harvest. Farmers typically open burn the straw to prepare the soil for the next crop, resulting in pollution, emission of greenhouse gases, erosion, loss of soil organic matter, and wildfi...

Full description

Saved in:
Bibliographic Details
Published in:Animals (Basel) 2021-05, Vol.11 (6), p.1552
Main Authors: Peñailillo, Karen A., Aedo, María Fernanda, Scorcione, María Carolina, Mathias, Mónica L., Jobet, Claudio, Vial, Manuel, Lobos, Iris A., Saldaña, Rodolfo C., Escobar-Bahamondes, Paul, Etcheverría, Paulina, Ungerfeld, Emilio M.
Format: Article
Language:English
Subjects:
Accumulation
Agricultural pollution
Agricultural production
Agronomy
Air pollution
Barley
Cellulose
Cereals
Crop diseases
Crop residues
Crop yield
Farmers
Gas production
Gases
Genotype & phenotype
Genotypes
Grain
Greenhouse effect
Greenhouse gases
Harvest
Harvesting
Incubation
Kinetics
Lignocellulose
Lodging
Microorganisms
Morphology
Nutritive value
Oats
Oil and gas production
Organic matter
Organic soils
Plant breeding
Pollution
Rumen
Rumen microorganisms
ruminants
Sediment pollution
Soil organic matter
Soil pollution
Straw
Wheat
Wildfires
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Increases in cereals grain yield in the last decades have increased the accumulation of straw on the soil after harvest. Farmers typically open burn the straw to prepare the soil for the next crop, resulting in pollution, emission of greenhouse gases, erosion, loss of soil organic matter, and wildfires. An alternative is feeding straw to ruminants, but straw nutritive value is limited by its high content of lignocellulose and low content of protein. Cereal breeding programs have focused on improving grain yield and quality and agronomic traits, but little attention has been paid to straw nutritive value. We screened straw from 49 genotypes of oats and 24 genotypes of wheat from three cereal breeding trials conducted in Chile for in vitro gas production kinetics. We found moderate effects of the genotype on gas production at 8, 24, and 40 h of incubation, and on the maximum extent and rate of gas production. Gas production was negatively associated with lignin and cellulose contents and not negatively associated with grain yield and resistance to diseases and lodging. Effects observed in vitro need to be confirmed in animal experiments before gas production kinetics can be adopted to identify cereal genotypes with more digestible straw.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani11061552