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Selecting high-yield forage sorghum genotypes for ensiling: agronomic traits, fermentation parameters, and
Marcos Felipe Pereira da Silva1, João Paulo Sampaio Rigueira1, Pedro Henrique Ferreira da Silva2
1Department of Agricultural Science, Universidade Estadual de Montes Claros, Janaúba, 39440000, Brazil.
Scientific Reports
|January 6, 2026
Summary
Researchers evaluated forage sorghum genotypes for dry matter yield and silage quality. Specific experimental genotypes showed high yield and good fermentation, offering potential for improved animal nutrition.
Area of Science:
- Agronomy and Plant Breeding
- Animal Nutrition and Ruminant Metabolism
Background:
- Forage sorghum (Sorghum bicolor L.) is a crucial crop for animal feed.
- Selecting genotypes with high dry matter yield (DMY) and optimal silage characteristics is vital for livestock production.
Purpose of the Study:
- To evaluate agronomic traits and select promising forage sorghum genotypes for forage accumulation.
- To assess fermentation, chemical composition, and rumen kinetics of selected sorghum silages.
Main Methods:
- Experiment 1: Evaluated 18 forage sorghum genotypes for agronomic traits and DMY.
- Experiment 2: Assessed fermentation, composition, and rumen kinetics of 7 selected genotypes (5 experimental, 2 commercial).
- Utilized Tocher grouping analysis to assess genetic diversity.
Main Results:
- Experimental genotype 6 exhibited the highest DMY (25.1 t/ha).
- Silages averaged a pH of 3.66 and 9.8 t/ha of degradable dry matter per area.
- Experimental genotypes 3, 4, 10, and 14 produced silages with comparable fermentation to commercial ones but higher digestible nutrients.
Conclusions:
- Significant genetic diversity exists among forage sorghum genotypes.
- Experimental genotypes 3, 4, 10, and 14 are promising for producing high-yield, high-quality silage.
- Selection of specific genotypes can enhance both forage yield and nutritional value for ensiling.
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