Nutritive value and herbage mass in hybrids of Paspalum plicatulum × Paspalum guenoarum fertilized with nitrogen or in mixture with temperate legumes

Recent efforts placed on breeding Paspalum species made available novel genetic resources for livestock production systems. Nitrogen (N) is an important factor to increase warm‐season grass nutritive value and production, either as anthropogenic supply or in mixture with legumes. Dry matter yield (D...

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Bibliographic Details
Published in:Grassland science 2020-10, Vol.66 (4), p.261-270
Main Authors: Minski da Motta, Eder Alexandre, Dall’agnol, Miguel, Rios, Esteban, Lopes de Souza, Cleber, Weiler, Roberto, Simioni, Carine, Brunes, André, Krycki, Karine, Graminho, Larissa, Silveira Garcia, Lisiane, Faraco Correa, Augusto
Format: Article
Language:English
Subjects:
Animal husbandry
Anthropogenic factors
Breeding
breeding forage
chemical composition
Clover
Digestibility
Dry matter
Fertilization
forage production
Genetic resources
Genotypes
Grasses
Hybrids
Legumes
Livestock
Livestock breeding
Livestock production
Nitrogen
nitrogen supply
Nutritive value
Paspalum
Paspalum plicatulum
Pasture
Plant growth
Trifolium repens
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Summary:Recent efforts placed on breeding Paspalum species made available novel genetic resources for livestock production systems. Nitrogen (N) is an important factor to increase warm‐season grass nutritive value and production, either as anthropogenic supply or in mixture with legumes. Dry matter yield (DMY) and nutritive value in Paspalum plicatulum Michx. × Paspalum guenoarum Arechav. hybrids in response to different rates of N or in mixture with temperate legumes were evaluated for two years. The experiment was a randomized complete block design in split‐plot arrangement with three replications. Treatments were six N supply systems: 0, 60, 120, 240, 480 kg N/ha and grass–legume mixture [white clover (Trifolium repens L.) + birdsfoot trefoil (Lotus corniculatus L.)] as whole plots, and six genotypes (hybrids: 1020133, 102069, 103084, 103061, P. guenoarum ecotype ‘Azulão’ and Megathyrsus maximus cv. ‘Aruana’ used as controls) as subplots. Higher N rates increased DMY and provided variability among genotypes. In general, grass–legume mixture showed greater crude protein and digestibility, and lower neutral and acid detergent fiber than N fertilized grass (p 
ISSN:1744-6961
1744-697X
DOI:10.1111/grs.12280