Características Estruturais E Produtivas Em Híbridos Intraespecíficos E Interespecíficos De Capim-Elefante

Neto, João Virgínio Emerenciano; Bezerra, Marcio Gleybson da Silva; França, Alan Ferreira de; Aguiar, Emerson Moreira de; Difante, Gelson dos Santos

doi:10.1590/1809-6891v20e-46788

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…Although many of the coefficients of the correlations evaluated were significant (p <0.01 and p <0.05), few were of medium or high magnitude. This can be attributed to the genetic diversity between the genotypes, if this analysis were carried out with only one genotype, we would possibly have higher correlation coefficients (Emerenciano Neto et al, 2019).…”

Section: Resultsmentioning

confidence: 98%

Propagation of coffee conilon “Vitória” in conventional and alternative substrates

Berilli

Salles

Sales

et al. 2020

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The sustainable production of inputs or products, either agricultural or industrial, has become an international concern in the last years. Thus, one of the biggest challenges today is to combine production with sustainability. Industrial waste use in agriculture is an alternative that has been gaining strength. The objective of this study was to evaluate the development, physiology and quality of Coffea canephora seedlings from the 13 genotypes (variety Vitória Incaper 8142), in conventional substrate in comparison to a substrate based on tannery sludge. A 2 x 13 factorial scheme was used in which the first factor was the two substrates (conventional substrate and substrate with tannery sludge), and the second factor was the 13 Vitória -Incaper 8142 Conilon coffee genotypes, arranged in a randomized block design with four repetitions. At 150 days after planting, the following characteristics were evaluated: leaf number, plant height, stem diameter, canopy diameter, leaf area, SPAD chlorophyll index, nitrogen balance index, total chlorophyll index, anthocyanins index and flavonoids index, dry shoot matter mass, dry root matter mass,dry total matter mass and Dickson quality index . No significant interaction was observed between the factors evaluated. The substrate containing tannery sludge provided less gain for most of the growth characteristics when compared to the conventional substrate. The tannery substrate promoted a greater production of defense metabolites in plants. As for the response pattern between the genotypes of the Vitória -Incaper 8142 variety, a high unevenness was observed in the initial development, both for their phenological and physiological characteristics, which is a reflect of the genetic variability existing between the genotypes.

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Section: Resultsmentioning

confidence: 98%

Propagation of coffee conilon “Vitória” in conventional and alternative substrates

Berilli

Salles

Sales

et al. 2020

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“…Improvements in the nutritional quality of tropical forages such as Pennisetum purpureum cv. Napier have been sought due to the characteristic protein deficit of these grasses (Fioreli et al, 2018;Faria, Morenz, Paciullo, Lopes, & Gomide 2018;Galindo, Buzetti, Teixeira, Dupas, & Carvalho, 2018;Emerenciano, Bezerra, França, Aguiar, & Difante, 2019).…”

Section: IIImentioning

confidence: 99%

Use of biostimulants in elephant grass cv. Napier

Pezenti

Pedreira

Fernandes

et al. 2022

Semina: Ciênc. Agrár.

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This study was developed to examine the growth, yield, chemical composition and in situ degradability of elephant grass cv. Napier (Pennisetum purpureum). Five spraying protocols with biostimulants were tested, namely, Control - no application; 1BR - bioregulator at seven days; 2BR - bioregulator at seven days + bioregulator and foliar fertilization at 20 days; 2BR2 - bioregulator at seven days + bioregulator and foliar fertilization at 20 days + ethylene inhibitor at 30 days; and 3BR - bioregulator at seven days + bioregulator and foliar fertilization at 20 days + ethylene inhibitor and bioregulator at 30 days. The grass was cut evenly at a height of 15 cm and harvested at 70 days of regrowth. The experimental area was divided into two blocks according to the slope. Ninety plots were used, totaling an area of 4,608 m2. Each plot was composed of four 4-m rows spaced 80 cm apart. Chemical composition, morphological traits and forage digestibility data were evaluated. The 3BR protocol, with more bioregulator-based applications, resulted in higher canopy (9.78%) and stem (9.58%) compared with control group. The 2BR and 2BR2 treatments provided a 6.5% higher stem than control treatment. The improvement in the nutritional value of Pennisetum purpureum cv. Napier was due to the 17.55% increase in crude protein (CP) content provided by protocol 3BR relative to control group. Treatments 2BR2 and 3BR improved the effective degradability of dry matter (DM). The application of biostimulant protocols increased the potential degradability of neutral detergent fiber (NDF) (+4.1%), with the greatest response seen in treatment 2BR2 in comparison with control treatment. Biostimulant protocols increase the canopy and stem heights and CP content. The application of a bioregulator associated with foliar fertilization and ethylene inhibitor improves the effective degradability of DM and NDF and the potential degradability of NDF in Pennisetum purpureum cv. Napier harvested at 70 days of regrowth.

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“…It is extensively cultivated in warm climate regions, serving multiple purposes such as cutting, grazing, ensilage, and bioenergy production (Tibayungwa et al 2011). In terms of forage aptitude, it can provide up to 15.85 t•ha -1 of forage mass when interspecific-hybridized with millet (Pennisetum glaucum) (Emerenciano Neto et al 2019). Furthermore, for bioenergy purposes its energy potential reaches up to 61.6 t•ha -1 •year -1 of dry matter (Vidal et al 2019;2022).…”

Section: Introductionmentioning

confidence: 99%

Adaptability and stability via mixed models in elephantgrass (Cenchrus purpureus (Schumach.) Morrone) varieties for energy purposes

Ambrósio,

Daher,

Santana

et al. 2023

Bragantia

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Elephant grass stands out among lignocellulosic biomass plants utilized for second-generation biofuel production due to several advantageous characteristics compared to other raw materials. Its short production cycle and ability to thrive in adverse soil and climate conditions contribute to its appeal. Additionally, breeders seek genotypes with high productivity potential and adaptability to various favorable cultivation environments. This study aimed to estimate genetic parameters, predict genetic values using mixed models (REML/ BLUP), and evaluate stability and adaptability for energy biomass production in elephant grass genotypes. The experiment was conducted in Campos dos Goytacazes, RJ, Brazil, utilizing a two-replicate experimental block design that included 40 elephant grass genotypes. Four harvest assessments were performed between 2016 and 2019. Genetic parameter estimation and selection of superior genotypes based on genetic value using the REML/BLUP procedure were performed using Selegen software. Stability and adaptability analyses were obtained through the harmonic mean of genotypic values (HMGV), enabling the identification of stable and highly productive genotypes. Genotypes 17, 18, 32, 16, 36, 6, 15, 31, and 34 exhibited outstanding performance in terms of HMGV, indicating enhanced stability, adaptability, and simultaneous productivity, thus ensuring robustness in cultivation. These selected genotypes hold potential for future breeding programs aimed at improving elephant grass yield for biomass production.

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Características Estruturais E Produtivas Em Híbridos Intraespecíficos E Interespecíficos De Capim-Elefante

Cited by 4 publications

References 18 publications

Propagation of coffee conilon “Vitória” in conventional and alternative substrates

Propagation of coffee conilon “Vitória” in conventional and alternative substrates

Use of biostimulants in elephant grass cv. Napier

Adaptability and stability via mixed models in elephantgrass (Cenchrus purpureus (Schumach.) Morrone) varieties for energy purposes

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