scholarly journals Effect of Elephant Grass Genotypes to Bioenergy Production

2019 ◽  
pp. 1-11
Author(s):  
Henrique Guimarães De Favare ◽  
Joadil Gonçalves De Abreu ◽  
Livia Vieira de Barros ◽  
Felipe Gomes Da Silva ◽  
Luis Miguel Mendes Ferreira ◽  
...  
Keyword(s):  
Rainy Season ◽  
Dry Matter ◽  
Block Design ◽  
Leaf Length ◽  
Pennisetum Purpureum ◽  
Dry Matter Yield ◽  
Elephant Grass ◽  
Agronomic Characteristics ◽  
Direct Combustion ◽  
Randomized Block Design

The study aimed to evaluate the agronomic characteristics of elephant grass (Pennisetum purpureum Schum.) genotypes on energy production in the combustion form. A randomized block design with 3 repetitions was used. The treatments were arranged in subdivided plots scheme, considering as a plot the genotypes and as subplots, the harvest season. The agronomic characteristics plant height (H), leaf length (LL), leaf blade width (LBW), stem diameter (SD), tillers number (TN), stem percentage (SP), dry matter yield (DMY) were evaluated. The rainy season provided greater H to elephant grass genotypes with height above 3.5 m. The average SP obtained by the genotypes was 68.21% and 67.21% to the first and second year of cultivation, respectively, which gives the biomass good quality of burning. The rainy season provided greater DMY comparing to the dry season. In the first year of cultivation there were genotypes with annual dry matter yield (ADMY) above 50 ton ha-1 year-1, however, the non-maintenance of soil fertility promoted the reduction of 39.17% and 39.05% in the DMY and ADMY, respectively. Analyzing the agronomic characteristics, we conclude that the promising genotypes of elephant grass to produce energy in the form of direct combustion are CNPGL 91-25-1, Cubano Pinda, BRS Canará, Porto Rico and Mercker.

scholarly journals DIFFERENT STABILITY METHODS FOR CULTIVAR RECOMMENDATION IN ELEPHANT-GRASS FOR ENERGY PURPOSES IN BRAZIL

CERNE ◽  
2017 ◽  
Vol 23 (4) ◽  
pp. 507-515 ◽  
Author(s):  
Veronica Brito da Silva ◽  
Rogerio Figueiredo Daher ◽  
Bruna Rafaela da Silva Menezes ◽  
Maria Lorraine Fonseca Oliveira ◽  
Maria do Socorro Bezerra Araújo ◽  
...  
Keyword(s):  
Energy Production ◽  
Dry Matter ◽  
Block Design ◽  
Dry Matter Yield ◽  
Elephant Grass ◽  
Randomized Block Design ◽  
Matter Production ◽  
Breeding Programmes ◽  
The Stability ◽  
Non Parametric

ABSTRACT The elephant-grass undergoes successive cutting and periodical evaluations that it possible to identify clones with high stability for dry matter production, which can be used for energy production. The present study was carried out to evaluate stability dry matter yield for different parametric and non-parametric methods in elephant grass genotypes for biomass production undergoes successive cutting in the agroclimatic conditions of the Norte Fluminense (RJ, Brazil). The variable measured in the 40 genotypes was dry matter yield (DMY) at 2009, 2010 and 2011 in a field study designed as randomized block design with two replicates. Each sample was grown in different environment condition. The stability methods tested were the Yates and Cochran’s, Plaisted and Peterson’s, Wricke’s ecovalence, Annicchiarico’s, Lin and Binns’ and Kang and Phan’s. Results indicated that cutting (E) and genotypes (G) influenced significantly on the performance of dry matter yield. The non-parametric stability methods were effective for the evaluation of stability in dry matter yield. Genotypes Mercker, Pinda-México, Mercker 86-México, Guaçu/IZ, Mercker Pinda, P-241-Piracicaba and Cubano Pinda were stable stability dry matter yield. Hence, there are genotypes may be exploited in future breeding programmes in order to improve productivity of upland elephant grass over environment.

scholarly journals PENGARUH JENIS AMELIORAN DAN DOSIS PUPUK SERBAGUNA (AGRODYKE) PADA PERTUMBUHAN RUMPUT GAJAH ODOT (Pennisetum Purpureum CV. Mott) DILAHAN GAMBUT

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Yuliatul Muslimah ◽  
Yusrizal Yusrizal ◽  
Imaniah Refkikan
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Leaf Length ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Type Factor ◽  
Number Of Shoots

Odot elephant grass is a tropical forage forage that is easily developed, has high production and can be used as animal feed.This study aims to determine the effect of ameliorant types and organic fertilizer (Agrodyke) doses on the growth of odot elephant grass (Pennisetum purpureum cv. Mott) on peatlands. This study used a 3x3 factorial randomized block design (RBD) with 3 replications consisting of: (1) ameliorant type factor (A) consisting of 3 levels, namely: A1 =dolomite lime, A2 = Shellfish shell, A3 = Eggshell. (2) Agrodyke fertilizer dose factor (D) Consists of 3 levels, namely: D0 = 0 gram / plant, D1 = 10 gram / plant, D2 = 20 gram / plant. Observation parameters are the number of leaves, number of shoots, leaf length, plant height. The results of this study indicate that the type of ameliorant did not significantly affect the number of leaves, number of shoots, leaf length, and plant height at 2 MST, 4 MST, and 6 MST. Versatile fertilizer (Agrodyke) dosage significantly affected the number of leaves and plant height at 6 MST. But no significant effect on the number of leaves, number of shoots and plant height in 2 MST and 4 MST. Keywords: Peat, Ameliorant Species, Odot Elephant Grass, Agrodyke.

scholarly journals Screening of Elephant Grass Genotypes Following Some Agro-marphological Traits Related to Biomass Production in Rio de Janeiro (Brazil)

2019 ◽  
pp. 1-10
Author(s):  
Ana Kesia Faria Vidal ◽  
Rogério Figueiredo Daher ◽  
Rafael Souza Freitas ◽  
Wanessa Francesconi Stida ◽  
Flávio Dessaune Tardin ◽  
...  
Keyword(s):  
Biomass Production ◽  
Dry Matter ◽  
Agronomic Traits ◽  
Block Design ◽  
Pennisetum Purpureum ◽  
Row Spacing ◽  
Elephant Grass ◽  
Randomized Block Design ◽  
Per Se ◽  
Computational Resources

The purpose of this research was to evaluate the behavior per se of elephant grass (Pennisetum purpureum Shum) hybrids for energy purposes by means of morpho-agronomic traits in four evaluation sections. An experiment in randomized block design with three replicates was applied to evaluate the hybrids. The plot consisted of a 15-m row with 1.50-m row spacing, and 1.50-m spacing between plants. The usable area was composed of the five central plants. It was evaluated Number of tillers per clump; Stem diameter; Plant height; Plant dry matter yield; and Percentage of dry matter. Computational resources from the GENES Program were used to analyze the results. In both cuts, the H7, H11, and H14 hybrids was superior to the others in the four evaluation cuts for all evaluated characteristics, proving to be a potential genotype to be used for energy biomass production.

scholarly journals Agronomic features of elephant grass (Pennisetum purpureum Schum) cv. Roxo under irrigation

2018 ◽  
Vol 39 (1) ◽  
pp. 275
Author(s):  
Ana Paula da Silva Carvalho ◽  
Roney Mendes de Arruda ◽  
Joadil Gonçalves de Abreu ◽  
Alexandre Lima de Souza ◽  
Rosane Cláudia Rodrigues ◽  
...  
Keyword(s):  
Plant Height ◽  
Water Depth ◽  
Dry Matter ◽  
Block Design ◽  
Pennisetum Purpureum ◽  
Dry Matter Production ◽  
Elephant Grass ◽  
Matter Production ◽  
Pennisetum Purpureum Schum ◽  
Water Depths

This study aimed to evaluate how different irrigation water depths influence the agronomical features of elephant grass (Pennisetum purpureum Schum) cv. Roxo. Grass was cultivated in a pasture belonging to the Bovine Sector of the National Agrotechnical School of Caceres – MT. The experiment was a block design with five treatments and four repetitions. Treatments consisted of five water depths: 0 = 0% of available water (AW), 1 = 21% of AW, 2 = 34% of AW, 3 = 74% of AW, and 5 = 100% of AW. Evaluated features were production (dry matter ha-1), plant height, leaf/steam ratio, and stem diameter. Dry matter production of cuts from May and July increased linearly with increasing water depth (P < 0.05). Plant height increased linearly as water depth increased in the cuts of May and September, while the height of July cuts was 71.76 cm under an irrigation depth of 390.77 mm. In May, July, and September cuts, leaf percentage decreased linearly as water depth increased (P < 0.05). An increase of 1 mm in water depth reduced leaf percentage by 0.0936% (May), 0.0295% (July), and 0.0122% (September). Our results indicate that to improve dry matter production, May, July, and September cuts should be irrigated with water depths of 56.03 mm, 601.78 mm, and 577.65 mm, respectively.

scholarly journals Comportamiento agronómico de variedades de avena (Avena sativa L.), con niveles de hoja de coca (Erythroxylum coca) molida como abono verde en Kallutaca, La Paz

2021 ◽  
Vol 8 (1) ◽  
pp. 17-24
Author(s):  
Eddy Diego Gutiérrez Gonzales ◽  
Octavio Mártir Coria Garcia ◽  
Verónica Elisa Condori Murga
Keyword(s):  
Plant Height ◽  
Avena Sativa ◽  
Green Manure ◽  
Dry Matter ◽  
Block Design ◽  
Agronomic Performance ◽  
Dry Matter Yield ◽  
La Paz ◽  
Differential Behavior ◽  
Randomized Block Design

In the Central Altiplano of Bolivia, the production of forage oats is important for the feeding of herbivorous livestock; however, the yields obtained at the producer level register low averages in dry matter. The objective was to evaluate the agronomic performance of three oat varieties, with levels of ground coca leaf as green manure, at the Kallutaca Experimental Center in the department of La Paz. A randomized block design was applied with a divided plot arrangement with four replications. The factors were oat varieties (Aguila, Gaviota and Texas) and levels of ground coca (0, 30 and 60 t ha-1), with variables days to emergence, number of tillers, plant height and dry matter yield. The results at days to emergence show differences in time 60 and 0 t ha-1 with 14 and 11 days. In relation to the number of tillers per plant, in varieties the behavior is similar with an average of 7 tillers; in relation to interaction, the values show significance. In plant height, the means recorded for the Texas variety were 137.10 cm, in the interaction the values were equal. In dry matter, there were significant differences in 60 and 30 t ha-1 with 16 427.27 and 15 281.82 kgDM ha-1, the Gaviota variety with 14 706.06 kgDM ha-1. The treatments influenced the agronomic behavior of the variables studied, the levels of green manure affected oat yield, mainly the number of tillers, which in turn affected the dry matter yield, finally the oat varieties have a differential behavior with the change in the levels of green manure.

scholarly journals Repeatability estimates and minimum number of evaluations for selection of elephant-grass genotypes for herbage production

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Erina Vitório Rodrigues ◽  
Rogério Figueiredo Daher ◽  
Geraldo de Amaral Gravina ◽  
Alexandre Pio Viana ◽  
Maria do Socorro Bezerra de Araújo ◽  
...  
Keyword(s):  
Plant Height ◽  
Principal Components ◽  
Dry Matter ◽  
Block Design ◽  
Phenotypic Selection ◽  
Stem Diameter ◽  
Dry Matter Yield ◽  
Elephant Grass ◽  
Minimum Number ◽  
Selection Of

In forage-plants breeding, the selection of superior genotypes has been undertaken through successive harvests in previously established intervals. However, this process involves many steps, the evaluation of many traits, and a great spending with costs and labor. Thus the estimate of the repeatability is essential in improvement of perennials, it allows predicting genotypic value of the individual, the minimum number of evaluations in the selection of genotypes and minimizes resources and time in the selection of promising individuals. The objective of this study was to estimate the repeatability coefficient for morphological traits in elephant grass and determine the number of evaluations needed for phenotypic selection more efficient. The experimental randomized block design with 53 genotypes and two replications. The repeatability coefficients were estimated for variables plant height, number of tillers, stem diameter and dry matter yield, using the methods of Anova, Principal Components and Structural Analysis. We observed significant differences between genotypes (P <0.01) for all variables. The main components provide larger estimates of repeatability when compared to other methods. Estimates of the repeatability coefficients are of high magnitude average for the variables plant height (0.44) number of tillers (0.44) and stem diameter (0.63) and low magnitude for dry matter production (0.27). The Principal Components method requires five, five, two and eleven measurements for plant height, number of tillers, stem diameter and dry matter yield, respectively, with 80% reliability.  

scholarly journals Nitrogen and Phosphate Fertilization Maximize Grass BRS Zuri Performance

2020 ◽  
Vol 8 (1) ◽  
pp. 64
Author(s):  
Sebastião Soares De Oliveira Neto ◽  
Ana Stella Freire Gonçalves ◽  
Rita Therezinha Rolim Pietramale ◽  
Mário José Bellíssimo
Keyword(s):  
Experimental Design ◽  
Ammonium Nitrate ◽  
Dry Matter ◽  
Block Design ◽  
Fertilization Rate ◽  
Forage Yield ◽  
Panicum Maximum ◽  
Dry Matter Yield ◽  
Randomized Block Design ◽  
Phosphate Fertilization

The low nutrients levels available in pasture formation reduces the forage yield. Soil correction and fertilization practices are considered priorities in the planning, renovation or recovery of pastures. The aimed of this experiment was to evaluate the effect of nitrogen and phosphate fertilization rate in productivity of the Panicum maximum cv. BRS Zuri. The experimental design was a randomized block design in a 3×4 factorial arrangement, with three doses of superphosphate (0.0, 80.0 and 160.0 kg.ha-1) and four doses of ammonium nitrate (0.0; 20.0; 40.0 and 60.0 kg.ha-1), with three replicates. The following parameters were evaluated at 120 days after implantation: green mass and dry matter yield, plant height, number of plants and tillers per square meter. The doses of 80.0 and 160.0 kg.ha-1 of P2O5 and 60.0 kg.ha-1 of nitrogen combined to each other showed the best results for forage yield.

Components of herbage accumulation in elephant grass cvar Napier subjected to strategies of intermittent stocking management

2013 ◽  
Vol 152 (6) ◽  
pp. 954-966 ◽  
Author(s):  
L. E. T. PEREIRA ◽  
A. J. PAIVA ◽  
E. V. GEREMIA ◽  
S. C. DA SILVA
Keyword(s):  
Population Density ◽  
Accumulation Rate ◽  
Block Design ◽  
Growth Strategy ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Compensatory Mechanisms ◽  
Randomized Block Design ◽  
Senescence Rate ◽  
Leaf Accumulation

SUMMARYHerbage accumulation is determined by the tissue turnover of individual plants and by the regulation patterns of the number of individuals in a plant population, which function in conjunction to enable swards to adapt to variations in growth and management conditions. Based on the hypothesis that intermittent grazing strategies change the proportion of basal and aerial tillers and, consequently, sward herbage accumulation, the objective of the current experiment was to evaluate the components of herbage accumulation in elephant grass cvar Napier (Pennisetum purpureum Schum. cvar Napier) from January 2011 to April 2012. The treatments corresponded to combinations of two post-grazing (post-grazing heights of 35 and 45 cm) and two pre-grazing conditions (0·95 and maximum canopy light interception during regrowth – LI0·95 and LIMax) and were allocated to experimental units (850 m2 paddocks) according to a 2×2 factorial arrangement in a complete randomized block design with four replications. The following response variables were evaluated: the population density of basal tillers (TPDb) and the population density of aerial tillers (TPDa), the number of aerial tillers per supporting unit (A/B+VC), growth rates of the leaf (LGR) and stem (SGR), leaf senescence rate, net leaf accumulation rate (LAR), and the contributions of basal and aerial tillers to sward growth and senescence. The swards managed with the LI0·95 target had greater TPDb than those managed with the LIMax target, but no difference was recorded between the LI pre-grazing targets for TPDa. The larger A/B+VC ratio recorded for the swards managed with the LIMax target resulted in a higher contribution of aerial tillers to the growth and senescence of swards. This growth strategy resulted in a higher SGR and lower LGR and LAR for the swards managed with the LIMax target relative to those managed with the LI0·95 target. The post-grazing height targets affected only LGR during winter and the second summer and SGR on average for the experiment, with higher values recorded for the swards managed at 35 cm. The LI pre-grazing targets played a central role in defining the compensatory mechanisms responsible for the competitive ability of the plants, which were primarily expressed in the variation of the proportion of basal and aerial tillers in the tiller population and interfered with the components of herbage accumulation and total herbage yield of the swards.

scholarly journals Dry matter yield, mineral contents and proximate composition of Panicum maximum (Jacq var. Ntchisi) sown with forage legumes

2021 ◽  
Vol 39 (1) ◽  
pp. 180-189
Author(s):  
F. T Ajayi
Keyword(s):  
Proximate Composition ◽  
Rainy Season ◽  
Dry Matter ◽  
Block Design ◽  
Ash Content ◽  
Panicum Maximum ◽  
Dry Matter Yield ◽  
Lablab Purpureus ◽  
Crude Fibre ◽  
Mineral Contents

This study assessed the dry matter yield, mineral and proximate composition of Panicum maximum Jacq var. Ntchisi planted with Lablab purpureus (Lablab), Centrosema pubescens (Centro), Aeschynomene histrix (A. histrix) and Stylosanthes guianensis (Stylo) in a 3 x 5 factorial experiment using Randomized Complete Block Design in early, mid and late rainy season. The dry matter yields (DMY) of panicum sown with Lablab (11.82 t/ha/yr) was significantly higher (P<0.05) than that observed for other mixtures. The least DMY of 9.46 t/ha/yr was observed for panicum in panicum/ A. histrix mixture. The yields recorded for Stylo and Lablab were highest in mid and late rainy seasons than in the early rain. Panicum sown with Lablab had the highest DM (37.71g/100g DM), Crude protein (CP) (11.36g/100g DM), ether extracts (7.20g/100g DM) and ash content (2.52g/100g DM). Among the legumes, Lablab had the highest CP (23.29 g/100g DM), crude fibre (10.61 g/100g DM) and ash content (3.96 g/100g DM). However, Centro was highest in ether extract (9.30g/100g DM). Panicum sown with Lablab had higher concentration of sodium (Na) and iron (Fe) while panicum planted with Stylo had highest concentration of phosphorus (P). The concentration of calcium (Ca) was similar (P>0.05) among the mixtures but differed (P<0.05) in the legumes. Stylo had the highest Ca concentration (0.72%) whereas highest P and Fe values were observed in Lablab. In conclusion, panicum harvested from panicum/lablab mixture had the highest DMY, CP, EE and ash content of grass in early, mid and late rainy season than the other mixtures.   

scholarly journals Pengaruh Pupuk Organik Cair dengan Konsentrasi Urin dan MOL Berbeda terhadap Produksi Rumput Gajah Mini (Pennisetum purpureum cv. Mott)

2021 ◽  
Vol 2 (1) ◽  
pp. 13-18
Author(s):  
Fitriana Akhsan ◽  
Sukriandi ◽  
A. Fajar Kurniawan Amris ◽  
Muh. Irmansyah
Keyword(s):  
Plant Height ◽  
Research Method ◽  
Block Design ◽  
Organic Fertilizer ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Fresh Weight ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
The Right

Liquid organic fertilizer with the right concentration is expected to be a source of nutrients for the growth of mini elephant grass. The aims of this study were to determine the effect of liquid organic fertilizer with different concentrations of urine and Local Microorganism (LMO) on the production of mini elephant grass. The research method used was a randomized block design (RBD) with 4 treatments and each treatment consisted of 3 groups as replications. The treatments used were liquid organic fertilizer, with concentrations of P0 (as a control), P1 (100 % urine, 0 % LMO), P2 (90 % urine, 10 % LMO) and P3 (85 % urine, 15 % LMO). The results showed that liquid organic fertilizer with different concentrations of urine and MOL had no significant effect on plant height, number of leaves, number of tillers and production of fresh weight (g/clump). The liquid organic fertilizer with different urine and MOL concentrations has no significant effect on the growth and production of mini elephant grass.

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