Herbage Accumulation and Nutritive Value of Seeded Bermudagrass Cultivars

Gomes, Vinicius Carreteiro; Vendramini, J. M. B.; Silva, Hiran Marcelo Siqueira da

doi:10.2134/cftm2019.08.0063

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…The lack of differences in CP concentrations in all trials corroborates other reports from the literature implying that little difference in CP concentration is expected among perennial grasses of the same genera when fertilized with a similar N rate and harvested at a similar physiological stage (Mislevy & Martin, 1998; Mislevy, Martin, Pate, Miller, & Rethman, 2002). A decrease in CP concentrations in the summer months was expected due to relatively greater HA and the dilution effect and has been observed by other researchers (Gomes, Vendramini, & da Silva, 2019). Cultivars with greater HA also had slightly lower CP concentrations, which is explained by the dilution of the CP in the greater HA.…”

Section: Discussionsupporting

confidence: 78%

Registration of ‘Mislevy’ bermudagrass

Vendramini

Rios

Dubeux

et al. 2020

J of Plant Registrations

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'Mislevy' (Reg. no. CV-46, PI 693070) bermudagrass [Cynodon dactylon (L.) Pers.] was selected at the University of Florida, and a series of research projects was conducted to evaluate the merit of Mislevy to be released as a new bermudagrass cultivar in Florida. A grazing experiment was conducted in South Florida and clipping trials conducted in South Florida, north-central Florida, and North Florida. In the grazing trial, Mislevy was compared with Jiggs, World Feeder, and 'Tifton 85' bermudagrass, and four stargrass (Cynodon nlemfuensis Vanderyst) cultivars/entries at four grazing frequencies. Mislevy, Jiggs, and Florona had the greatest overall herbage accumulation (HA), but Mislevy had greater HA at late maturity (7 wk). In the clipping trials, Mislevy was compared with Jiggs, Tifton 85, 'Tifton 44', 'Coastal', Alicia (North Florida only), and 'Russell' (North Florida only) bermudagrass. Mislevy and Jiggs had greater spring HA and total HA than the other cultivars/entries in South Florida and North Florida. In South Florida, all cultivars/entries had the presence of Bipolaris spp. in the aboveground forage at the 9-wk regrowth interval; however, Mislevy and Tifton 44 had greater proportion of green tissue. In north-central Florida, there was no difference in spring HA among cultivars, and Tifton 85 had greater total annual HA than Mislevy. Mislevy may be a viable option to increase bermudagrass genetic diversity and provide superior spring and annual HA in South Florida. Abbreviations: CP, crude protein; HA, herbage accumulation; IVDOM, in vitro digestible organic matter. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Discussionsupporting

confidence: 78%

Registration of ‘Mislevy’ bermudagrass

Vendramini

Rios

Dubeux

et al. 2020

J of Plant Registrations

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Herbage accumulation and nutritive value of new bermudagrass accessions and cultivars

García,

Dubeux,

Vendramini

et al. 2024

Agronomy Journal

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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.

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Genotypic and seasonal variation in root depth development during establishment of C

Huot

Philp²,

Zhou³

et al. 2021

Crop & Pasture Science

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Context Perennial forage grass species are often grown with limited water following establishment and rely on accessing water deep in the soil profile to survive. Aim This study aimed to characterise bermudagrass (Cynodon spp.) genotypes with rapid vertical root growth associated with post-establishment survival. Methods Twelve bermudagrasses representing genotypes from diverse climate zones in Australia were established in rhizotrons to analyse the stability in genotypic variation in root and shoot growth in winter and summer experiments. Genotypic rank of root length, leaf area, and root dry weight were consistent in both seasons. Key results Bermudagrass genotypes exhibited different traits correlated with root vertical growth rate and inconsistency of genotypic rank of shoot growth. During winter establishment, the rate of root depth development (RRDD) (r=−0.64) was correlated with the proportion of root length that became inactive, that was likely due to seasonal root death in winter conditions; during summer establishment, RRDD was correlated with tiller appearance rate (r=0.45) and root distribution to 10cm depth (r=−0.62). Shoot dry weight was correlated with photosynthesis (r=0.85) and transpiration (r=0.79) in summer, but not in winter. RRDD (r=0.75, winter and r=0.77, summer) was correlated with drought resistance index, previously analysed under field conditions. Conclusions and implications Genotypes from the Mediterranean climates in Australia showed rapid growth of roots and shoots in both seasons and have the greatest potential for broader application for forage production in variable environments.

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Herbage Accumulation and Nutritive Value of Seeded Bermudagrass Cultivars

Cited by 3 publications

References 17 publications

Registration of ‘Mislevy’ bermudagrass

Registration of ‘Mislevy’ bermudagrass

Herbage accumulation and nutritive value of new bermudagrass accessions and cultivars

Genotypic and seasonal variation in root depth development during establishment of C

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