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- Title
Herbage accumulation and nutritive value of new bermudagrass accessions and cultivars.
- Authors
Vela García, Carlos Cristobal; Batista Dubeux Jr, José Carlos; Bueno Vendramini, João Mauricio; Rios, Esteban Fernando; da Silva Santos, Erick Rodrigo; Jaramillo, David Mirabedini; Dantas Queiroz, Luana Mayara; de Souza, Rayanne Thalita Almeida; Costa Homem, Bruno Grossi; Ruiz-Moreno, Martin; Longhini, Vanessa Zirondi; van Cleef, Flávia Oliveira Scarpino; Ferreira dos Santos, Mércia Virginia
- Abstract
Bermudagrass [Cynodon dactylon (L.) Pers.] is an important forage source for ruminants in tropical and subtropical regions of the world; nevertheless, little is known about the productive and nutritional characteristics of new accessions and cultivars originating from breeding programs. Five bermudagrass cultivars (Tifton 85, Jiggs, Florida 44, Callie, and Newell) and five accessions (276, 282, 323, 286, and Missouri) were tested during the 2018 and 2019 growing seasons. Genotype × harvest interactions were detected for herbage accumulation (HA), crude protein (CP), and nitrogen yield (p < 0.05). In June, all bermudagrass genotypes showed significant variation in HA, with accession 286 being more productive than Jiggs (4.42 vs. 3.24 Mg DM ha−1 harvest−1, respectively, where DM is dry matter). In October, however, accession 323 had greater CP than Callie, accession 286, Newell, and Tifton 85, with average CP values of 155, 128, 136, and 137 g kg−1 DM, respectively. Average in vitro digestible organic matter for accession 323 (450 g kg−1 DM) was similar to that of Tifton 85 and Newell but greater than that of Missouri (393 g kg−1 DM). Genotypes displayed unique responses to all traits across harvest dates. According to the principal component analysis, the accession Missouri exhibited low productive and nutritive value properties. The accession 286 showed greater CP concentration while still productive; thus, this accession will be further examined for future release to livestock or hay producers in subtropical regions worldwide.
- Subjects
PRINCIPAL components analysis; HARVESTING time; CULTIVARS; GRASSES; ORGANIC compounds; BERMUDA grass
- Publication
Agronomy Journal, 2024, Vol 116, Issue 5, p2498
- ISSN
0002-1962
- Publication type
Article
- DOI
10.1002/agj2.21643