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Effects of Charcoal Rot on Soybean Seed Composition in Soybean Genotypes That Differ in Charcoal Rot Resistance under Irrigated and Non-Irrigated Conditions
- Source :
- Plants, Vol 10, Iss 1801, p 1801 (2021), Plants, Volume 10, Issue 9
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Charcoal rot is a major disease of soybean (Glycine max) caused by Macrophomina phaseolina and results in significant loss in yield and seed quality. The effects of charcoal rot on seed composition (seed protein, oil, and fatty acids), a component of seed quality, is not well understood. Therefore, the objective of this research was to investigate the impact of charcoal rot on seed protein, oil, and fatty acids in different soybean genotypes differing in their charcoal rot susceptibility under irrigated and non-irrigated conditions. Two field experiments were conducted in 2012 and 2013 in Jackson, TN, USA. Thirteen genotypes differing in charcoal rot resistance (moderately resistant and susceptible) were evaluated. Under non-irrigated conditions, moderately resistant genotypes showed either no change or increased protein and oleic acid but had lower linolenic acid. Under non-irrigated conditions, most of the susceptible genotypes showed lower protein and linolenic acid but higher oleic acid. Most of the moderately resistant genotypes had higher protein than susceptible genotypes under irrigated and non-irrigated conditions but lower oil than susceptible genotypes. The different responses among genotypes for protein, oil, oleic acid, and linolenic acid observed in each year may be due to both genotype tolerance to drought and environmental conditions, especially heat differences in each year (2012 was warmer than 2013). This research showed that the increases in protein and oleic acid and the decrease in linolenic acid may be a possible physiological mechanism underlying the plant’s responses to the charcoal rot infection. This research further helps scientists understand the impact of irrigated and non-irrigated conditions on seed nutrition changes, using resistant and susceptible genotypes.
- Subjects :
- food.ingredient
Linolenic acid
charcoal rot
soybean oil
Plant Science
soybean protein
Article
Soybean oil
chemistry.chemical_compound
food
Macrophom-ina phaseolina
Genotype
Charcoal
Ecology, Evolution, Behavior and Systematics
Ecology
biology
soybean nutrition
Botany
food and beverages
biology.organism_classification
Macrophomina phaseolina
Oleic acid
Horticulture
chemistry
visual_art
QK1-989
Glycine
soybean fatty oil
visual_art.visual_art_medium
Composition (visual arts)
Subjects
Details
- Language :
- English
- ISSN :
- 22237747
- Volume :
- 10
- Issue :
- 1801
- Database :
- OpenAIRE
- Journal :
- Plants
- Accession number :
- edsair.doi.dedup.....f029f80bc69a7f7ad82bdfb15ce204f1