Bibliografie tematiche / Panicum

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Letteratura scientifica selezionata sul tema "Panicum"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Panicum"

1

Eyoh, G. D., M. D. Udo e C. P. Edet. "Growth Performance and Carcass Characteristics of West African Dwarf Bucks Fed Different Forms of Processed Guinea Grass (Panicum Maximum)". Current Agriculture Research Journal 7, n. 2 (10 maggio 2019): 254–60. http://dx.doi.org/10.12944/carj.7.2.13.

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Abstract (sommario):
An experiment was conducted to determine the growth performance and carcass characteristics of West African Dwarf bucks fed different types of processed Panicum maximum. Twelve West African Dwarf bucks aged between 6 and 8 months with initial mean weight of 7.26 kg were intensively managed for 56 days. The experimental diets are wilted Panicum maximum, fresh Panicum maximum, ensiled Panicum maximum and Panicum maximum Hay designated as T1, T2, T3, and T4, respectively. The results revealed that goats placed on wilted Panicum maximum (T1) (135.18g/day) and hay, (T4) (139.29g/day) were similar in respect to concentrate intake. Forage intake showed significant (P<0.05) differences. Goats fed wilted Panicum (T1) (607.78g/day) and fresh Panicum maximum (T2) (634.46g/day) had similar intake but differed from goats placed on ensiled Panicum maximum (T3) and hay Panicum maximum (T4). Daily dry matter intake (DMI) differed (P<0.05) significantly among treatments. Total daily feed intake of goats on wilted Panicum maximum (T1) (42.96g/day) and fresh Panicum maximum (T2) (759.80g/day) were similar and differed from total daily feed intake of goats placed on ensiled Panicum maximum(564.28g/day) and Hay Panicum maximum484g/day. Goats fed wilted Panicum maximum produced higher value of live weight which did not differ (P>0.05) from other treatments.Bucks on fresh Panicum maximum (T2) had higher value of bled weight (7.40kg) but did not significantly differ (P>0.05). Heavier dressed weight (35.62) was recorded by goats fed wilted Panicum maximum (T1) but did not significantly differ (P>0.05) from other treatments. Dressing percentages, thigh, loin, internal organs and bone to lean ratio were not significantly different (P>0.05) from each other. The use of Panicum maximum in any form has no effect on conversion of forage into meat and formation of any part.
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2

Guglieri, Adriana, Fernando O. Zuloaga e Hilda Maria Longhi-Wagner. "Sinopse das espécies de Panicum L. subg. Panicum (Poaceae, Paniceae) ocorrentes no Brasil". Acta Botanica Brasilica 18, n. 2 (giugno 2004): 359–67. http://dx.doi.org/10.1590/s0102-33062004000200015.

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Abstract (sommario):
O levantamento de Panicum subg. Panicum revelou a ocorrência de 29 espécies para o Brasil. O trabalho apresenta chaves para diferenciar o subgênero Panicum de outras seções de Panicum atualmente não agrupadas em subgêneros definidos, e para espécies do subgênero Panicum, ilustrações de caracteres taxonômicos selecionados e dados de distribuição geográfica das espécies tratadas.
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3

N.M., Witariadi, e N. N. C. Kusumawati. "Pertumbuhan dan Hasil Rumput Panicum maximum cv. Trichoglume yang Ditanam Bersama Leguminosa dengan Jumlah Berbeda". Pastura 12, n. 1 (23 settembre 2022): 47. http://dx.doi.org/10.24843/pastura.2022.v12.i01.p09.

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Percobaan untuk mengetahui pertumbuhan dan hasil rumput Panicum maximum cv. Trichoglume yang ditanam bersama leguminosa dengan jumlah berbeda. Percobaan dilaksanakan di rumah kaca dan berlangsung selama 3 bulan. Rancangan yang digunakan adalah rancangan acak lengkap (RAL) terdiri dari 1 faktor dengan 7 taraf perlakuan dan masing-masing diulang 5 kali, terdapat 35 pot percobaan. Perlakuan tersebut: P1 (Panicum maximum cv. Trichoglume); P2 (Panicum maximum cv. Trichoglume + 1 Clitoria ternatea); P3 (Panicum maximum cv. Trichoglume + 2 Clitoria ternatea); P4 (Panicum maximum cv. Trichoglume + 3 Clitoria ternatea); P5 (Panicum maximum cv. Trichoglume + 1 Centrocema pubescens); P6 (Panicum maximum cv. Trichoglume + 2 Centrocema pubescens) dan; P7 (Panicum maximum cv. Trichoglume + 3 Centrocema pubescens). Variabel yang diamati adalah variabel pertumbuhan, variabel hasil dan variabel karakteristik tumbuh tanaman. Hasil penelitian menunjukkan bahwa pertumbuhan dan hasil rumput Panicum maximum cv. Trichoglume yang ditanam bersama leguminosa dengan jumlah berbeda dapat meningkatkan pertumbuhan dan hasil dari rumput. Semakin banyak jumlah leguminosa ditanam bersama dengan rumput menyebabkan pertumbuhan dan hasil rumput menurun. Hasil terbaik bila rumput itu ditanam bersama dengan 1 buah tanaman Centrocema pubescens (P5). Dapat disimpulkan bahwa pertumbuhan dan hasil rumput Panicum maximum cv. Trichoglume memberikan hasil terbaik bila ditanam bersama dengan l tanaman Centrocema pubescens (P5) Kata kunci: Centrocema pubescens, Clitoria ternatea, hasil, Panicum maximum, pertumbuhan
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Almeida, Rodrigo Estevam Munhoz de, Caio Macret Gomes, Bruno Cocco Lago, Silas Maciel de Oliveira, Clovis Pierozan Junior e José Laércio Favarin. "Corn yield, forage production and quality affected by methods of intercropping corn and Panicum maximum". Pesquisa Agropecuária Brasileira 52, n. 3 (marzo 2017): 170–76. http://dx.doi.org/10.1590/s0100-204x2017000300004.

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Abstract: The objective of this work was to evaluate methods of intercropping corn and Panicum spp. forages and their effects on corn yield and forage development. Two experiments with Panicum spp. were conducted, one with 'Tanzania' and other with 'Massai' in the municipality of Piracicaba, in the state of São Paulo, Brazil, in the 2012/2013 growing season. In both experiments, the treatments were: broadcast seeding of Panicum spp. at the same time of corn sowing; corn with Panicum spp. between rows; Panicum spp. sown with fertilizer; Panicum spp. sown between corn rows after corn establishment; broadcast seeding of Panicum spp. after corn establishment; and sole corn sowing. For corn, leaf nitrogen content, ear height, and grain yield were evaluated. For Panicum spp. cultivars, height, dry mass, tiller density, and leaf:stem ratio were evaluated. The intercropping establishment methods used do not affect corn growth, grain yield, and N leaf content. The seeding of both cultivars of Panicum spp. when corn plants had four expanded leaves reduces forage dry mass production and increases the leaf:stem ratio. The Panicum spp. broadcast method, performed after corn was established, does not allow appropriate establishment, with few plants in the area.
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5

Adebayo, B. J., e O. E. Alao. "Apparent nutrient digestibility and nitrogen utilization of Panicum maximum-based diets fed to West African Dwarf (WAD) sheep". Journal of Agricultural Science and Practice 9, n. 1 (28 febbraio 2024): 9–15. http://dx.doi.org/10.31248/jasp2023.449.

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Abstract (sommario):
An experiment was carried out to investigate the apparent nutrient digestibility and nitrogen utilization of feed for West African Dwarf (WAD) sheep fed five selected plants in small ruminant research farm, Yaba College of Technology, Lagos. Twenty WAD sheep were subjected to five dietary treatments with four animals per treatment in a completely randomized design for an in vivo experiment that lasted for 84 days. The animals were fed Anacardium occidentale, Gmelina arborea, Mangifera indica and Gliricidia sepium leaves using Panicum maximum as a basal diet. Dry matter (DM) digestibility varied (p<0.05) between sheep fed Mangifera indica + Panicum maximum and Anacardium occidentale + Panicum maximum respectively. Crude protein digestibility was highest (p<0.05) in sheep fed Anacardium occidentale + Panicum maximum and lowest in sheep fed Mangifera indica + Panicum maximum. Nitrogen digestibility ranged from 79.64% in animals fed Panicum maximum (control) to 93.62% in animals fed Anacardium occidentale + Panicum maximum. Sheep fed Anacardium occidentale + Panicum maximum had highest (p<0.05) value (1.63 g/d) urinary nitrogen while the lowest value (0.65 g/d) was observed in animals fed Mangifera indica + Panicum maximum. Nitrogen absorbed had least value (2.36g/d) in animals fed the control diet whereas significant highest value was recorded in animals fed Anacardium occidentale + Panicum maximum (7.56g/d). The study concluded that sheep fed Anacardium occidentale supplemented with Panicum maximum had the higher values of nutrient digestibilities and nitrogen intake.
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Abdoun, Fatiha, e Houria Zenchi. "Panicum turgidum". Encyclopédie berbère, n. 37 (1 gennaio 2015): 6087–91. http://dx.doi.org/10.4000/encyclopedieberbere.3390.

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7

Jiang, Pan, Junyi Jiang, Cong Yang, Xinchen Gu, Yi Huang e Liang Liu. "Climate Change Will Lead to a Significant Reduction in the Global Cultivation of Panicum milliaceum". Atmosphere 14, n. 8 (16 agosto 2023): 1297. http://dx.doi.org/10.3390/atmos14081297.

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Abstract (sommario):
Panicum milliaceum is a specialty crop that maintains the economic stability of agriculture in arid and barren regions of the world. Predicting the potential geographic distribution of Panicum milliaceum globally and clarifying the ecological needs of Panicum milliaceum will help to advance the development of agriculture, which is important for the maintenance of human life and health. In this study, based on 5637 global distribution records of Panicum milliaceum, we used the MaxEnt model and ArcGIS software, the Beijing Climate Center Climate System Model (BCC-CSM2-MR) was selected to predict the potential global geographic distribution of Panicum milliaceum in the present and future in combination with the environmental factor variables; we evaluated the significant factors constraining the potential geographic distribution of Panicum milliaceum by combining the contributions of environmental factor variables; and we assessed the accuracy of the MaxEnt model by using AUC values and Kappa statistics. The results showed that the MaxEnt model was highly accurate, the simulation results were credible, and the total suitable area of Panicum milliaceum in the world is 4563.82 × 104 km2. The high habitat area of Panicum milliaceum is 484.95 × 104 km2, accounting for 10.63% of the total habitat area, and is mainly distributed in the United States, the Russian Federation, France, Ukraine, Australia, Germany, etc. The soil factor (hswd) was the most important environmental factor limiting the potential geographic distribution of Panicum milliaceum, followed by the precipitation factor (Precipitation of the Driest Month, bio14) and temperature factor (Mean Temperature of the Wettest Quarter, bio8). Under four future climate change scenarios, the area of the potential geographic distribution of Panicum milliaceum decreased to different extents at different levels compared to the contemporary period. Therefore, climate change may significantly affect the global distribution pattern of Panicum milliaceum cultivation in the future and thus reshape global Panicum milliaceum production and trade patterns.
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Zuloaga, Fernando O., e Osvaldo Morrone. "Revision De Las Especies Americanas De Panicum Subgenero Panicum Seccion Panicum (Poaceae: Panicoideae: Paniceae)". Annals of the Missouri Botanical Garden 83, n. 2 (1996): 200. http://dx.doi.org/10.2307/2399947.

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Guglieri, Adriana, Hilda M. Longhi-Wagner e Fernando O. Zuloaga. "Panicum complanatum (Poaceae: Panicoideae: Paniceae), a New Species for Southeastern Brazil". Systematic Botany 31, n. 3 (1 luglio 2006): 506–11. http://dx.doi.org/10.1600/036364406778388601.

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Abstract (sommario):
A new species, Panicum complanatum from southeastern Brazil is described and illustrated, including a key to distinguish it from similar taxa. Panicum complanatum belongs to Panicum subg. Panicum and is characterized mainly by the presence of a regular row of flattened, long hairs at the ventral base of the upper lemma and palea.
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Patterson, David T., Ann E. Russell, David A. Mortensen, Robert D. Coffin e Elizabeth P. Flint. "Effects of Temperature and Photoperiod on Texas Panicum (Panicum texanum) and Wild Proso Millet (Panicum miliaceum)". Weed Science 34, n. 6 (novembre 1986): 876–82. http://dx.doi.org/10.1017/s004317450006803x.

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Abstract (sommario):
Texas panicum (Panicum texanumBuckl. # PANTE) is a native of the Southwest, now increasing as a weed throughout the southern United States, whereas wild proso millet (Panicum miliaceumL. # PANMI) is an introduced weed currently increasing in importance in the northern Midwest. In controlled-environment chambers, both species produced more tillers, greater leaf area, and more total dry weight at 30/24 C day/night (simulated growing season temperature in Georgia) than at 24/18 C (simulated growing season temperature in Minnesota). Texas panicum accumulated more dry matter at 30/24 C than did wild proso millet, while wild proso millet accumulated more dry matter at 24/18 C than did Texas panicum. When the two species were grown together, Texas panicum was the superior competitor at 30/24 C while wild proso millet was superior at 24/18 C. Exposure to short photoperiods at an intermediate temperature of 27/21 C accelerated flowering and limited vegetative growth in both species. In the range of photoperiods (10 to 16 h) examined, wild proso millet always flowered earlier and, consequently, produced less vegetative growth than Texas panicum. Its responses to temperature and photoperiod indicate that wild proso millet probably would be competitively inferior to Texas panicum and other adapted grass weeds in the southern United States.
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Più fonti

Tesi sul tema "Panicum"

1

Noirot, Michel. "Diversité des mises en place des structures reproductives chez Panicum maximum : logique d'une réponse optimale à des contraintes, conséquences pour l'amélioration de la production semencière /". Bondy : Éd. de l'ORSTOM, 1990. http://catalogue.bnf.fr/ark:/12148/cb350760092.

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2

Rahman, Mohammed Matiur. "Taxonomic studies in the genus Panicum L". Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/16918.

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Thomas, Justin R. "A Morphological Investigation of Dichanthelium Section Lanuginosa (Poaceae)". Oxford, Ohio : Miami University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1228328069.

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Martuscello, Janaina Azevedo. "Morfogênese de Panicum maximum x Panicum infestum cv. Massai e da Brachiaria brizantha cv. Xaraés submetidas à adubação nitrogenada e desfolhação". Universidade Federal de Viçosa, 2004. http://www.locus.ufv.br/handle/123456789/11242.

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Objetivou-se com este trabalho avaliar as características morfogênicas e estruturais do Panicum maximum x Panicum infestum cv. Massai e Brachiaria brizantha cv. Xaraés submetidos à combinação de quatro doses de nitrogênio (0, 40, 80 e 120 mg/dm 3 ) e três freqüências de corte (três, quatro e cinco folhas completamente expandidas para o capim- massai e duas, quatro e cinco folhas completamente expandidas para o capim-xaraés), em um esquema fatorial 4 x 3. Os experimentos foram desenvolvidos em casa de vegetação, ambos no delineamento inteiramente casualizado, com quatro repetições, totalizando 48 unidades experimentais por experimento. A semeadura foi feita em substrato agrícola comercial e após a emergência cinco plantas foram transplantadas para os vasos com 5,8 dm 3 de solo, deixando-se após o desbaste, três plantas/vaso. Trinta dias antes do transplantio aplicou-se 300 mg/dm 3 de P em todos os vasos. A adubação nitrogenada, via solução aquosa, de acordo com os tratamentos experimentais foi parcelada em quatro vezes, assim como a adubação potássica. Quando as plantas apresentavam o número de folhas expandidas indicador da freqüência de corte foram colhidas a 5 cm do solo iniciando-se as avaliações. Encerradas as avaliações as plantas foram colhidas e submetidas à secagem para determinação de MS. De acordo com os resultados observa-se que o nitrogênio teve efeito positivo sobre as características morfogênicas e estruturais de capim-massai, bem como sobre a produção de MS. A TAlF aumentou linearmente até 65 % com a dose de 120 mg/dm 3 de N. Os valores para filocrono foram de 7,87 e 12,29 dias, respectivamente para a dose de 120 mg/dm3 e para dose controle, ambos colhidas com três folhas completamente expandidas. A produção de MS da parte aérea de capim-massai, bem como a relação lâmina:colmo aumentaram linearmente com as doses de N e com a redução do número de folhas expandidas antes do corte. O número de folhas expandidas antes corte (freqüência de corte) influenciou positivamente a taxa de aparecimento foliar (folha/dia) que variou de 0,075 a 0,09 folhas/dia para três e cinco folhas, respectivamente. A duração de vida das folhas variou de 34 a 39 dias. Quanto ao capim-xaraés, observou-se que as características morfogênicas e estruturais, bem como a produção de MS, com exceção da MS radicular também responderam às doses de nitrogênio aplicadas. A TAlF (cm/dia) aumentou linearmente até 37 % na dose de 120 mg/dm3. A freqüência de corte influenciou a TAlF (cm/dia e cm/GD), filocrono (dias e GD), CFL, NFV, TSe (cm/dia) e MS da parte aérea e raiz. Concluiu-se que plantas de capim-massai e capim-xaráes são responsivas a adubação nitrogenada e que a freqüência de corte também exerce influência sobre algumas características morfogênicas, estruturais e produtivas dessas gramíneas forrageiras.
It objectified with this work to evaluate the morphogenetic and structural characteristics of Panicum maximum x Panicum infestum cv. Massai and Brachiaria brizantha cv. Xaraés submitted to the combination of four nitrogen doses (0, 40, 80 and 120 mg/dm3) and three cut frequencies (three, four and five leaves completely expanded for the massai grass and two, four and five leaves completely expanded for the xaraés grass), in a factorial outline 4 x 3. The experiments were developed at greenhouse both in the randomized design, with four repetitions, totalizing 48 experimental units per experiment. The sowing was made in commercial agricultural substratum and after the emerging five plants were transplanted for the vases with 5,8 dm3 of soil, leaving after the paring, three plant/pot. The phosphate fertilization was berformed according to fertility analysis of the soil. The nitrogen fertilization, through aqueous solution, according to the experimental treatments was divided in four turns, as well as the potash fertlization. After the plants presented the number of expanded leaves, indicating the cut frequency, they were harvested to 5 cm of the soil initiating the evaluations. After finishing the evaluations, the plants were harvested and submitted to the drying for determination of DM. According to the results, it was observed that the nitrogen had positive effect about on morphogenetics and structural characteristic of Massai grass, as well as on DM production. TAlF increased xlineally up to 65% with the dose of 120 mg/dm3 of N. The values found for filocron were from of 7,87 to 12,29 days, respectively for the dose of 120 mg/dm3 and for control doses both cut with three completely expanded leaves. The DM Production of massai shoot of, as well as the ratio lamina:stem increased linearlly with the doses of N and with the reduction of the number of leaves expanded before the cut. The number of leaves expanded before cuts influenced positively the foliate appearance rate. Life duration of the leaves varied from 34 to 39 days. In relation the xaraés grass the morphogenetic and structural characteristics, as well as DM production, except for DM root also responded to the doses of applied nitrogen. TAlF (cm/day) increased linearlly up to 37% in the dose of 120 mg/dm3. The cut frequency influenced TAlF (cm/day and cm/GD), filocron (days and GD), CFL, NFV, TSe (cm/day) and DM of the shoot and root. It follows that massai grass and xaeaés grass are responsives the nitrogen fertlization and that the cut frequency also influences some morphogenetic, structural and productive characteristics of these forage grass.
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Pilon, Guillaume. "Étude de production et de caractérisation de biocharbons de Panic Érigé (Panicum virgatum L.) obtenus par pyrolyse". Thèse, Université de Sherbrooke, 2013. http://hdl.handle.net/11143/6138.

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Dans le cadre de cette recherche, la production de biocharbon par pyrolyse est étudiée à des conditions visant sa valorisation comme biochar (amendement pour le sol), tout en considérant son potentiel comme charbon vert (pour bioénergie ou transformations subséquentes). La production du charbon de biomasse s'est effectuée à l'aide de deux réacteurs à lits fixes de types batch, d'une capacité de 1 et 25 gb.hlbatch, respectivement. Le panic érigé (Panicum virgatum) est la biomasse lignocellulosique qui a été utilisée dans le cadre des tests. Les facteurs de production étudiés sont principalement la température (300, 400 et 500 °C) pour un court temps de résidence en réacteur (2,5 et 5 min) et l'effet de l'usage du CO2 plutôt qu'un environnement plus conventionnel d'azote. L'effet de ces facteurs est étudié par rapport aux caractéristiques physico-chimiques des biocharbons obtenus. Un suivi des produits pyrolytiques complémentaires (bio-huile et gaz) a aussi été effectué. Des extractions de biocharbon par Soxhlet (à l'aide de dichlorométhane) ont été analysées par GC-MS et ont permis l'identification d'une multitude de produits présents dans les biocharbons. Les conditions spécifiques utilisées pour la pyrolyse, entre autres la convection forcée avec taux de chauffe rapide à 300 °C — N2 à l'aide du réacteur 1 glbatch, ont présenté des rendements et propriétés de biocharbon avantageux pour l'amélioration de la productivité du procédé de torréfaction (en comparaison avec des travaux rapportés, notamment ceux de Gilbert et al. [2009]). Les analyses des extractions de charbons de biomasse ainsi que des bio-huiles (par GC-MS), produites à l'aide du réacteur 25g/batch, ont permis d'observer des différences significatives dans les composés obtenus lors de l'usage de CO2 vs N2. Plusieurs composés observés dans les extraits de biocharbons, produits en atmosphère de N2, se retrouvent en quantités moindres dans les extraits de biocharbons produits en atmosphère de CO2 pour des températures communes. À titre d'exemple, le furfural, un composé aromatique commun provenant de la dégradation des glucides, s'est retrouvé uniquement dans les extraits de biocharbons en présence de N2 vs CO2, à 400 °C. Parmi l'ensemble des conditions étudiées (pour les 2 réacteurs), uniquement le naphtalène et des dérivés du naphtalène sont observés comme hydrocarbures aromatiques polycycliques, et ce, uniquement suivant les traitements à 500 °C. L'étude de l'usage du CO2 comme gaz d'entrée en réacteur mena à des différences significatives pour l'ensemble des températures étudiées, et ce, tant pour les biocharbons que pour les produits liquides et gazeux. À 300 °C, en environnement de CO2 comparé à N2, il est possible d'observer une production de bio-huile significativement plus faible (18,0 vs 24,6 %; CO2 vs N2 pour P<0,002), ce qui représente un résultat cohérent avec l'obtention de biocharbon au contenu en composés volatils significativement plus élevé obtenu aux mêmes conditions (0,29 vs 0,35 g composés volatils - biocharbotig biomasse originale; CO2 vs N2 pour P=0, I ). De plus, à 500 °C, un contenu en cendres de biocharbon significativement plus faible a été observé en environnement de CO2 vs N2 (P<0,06). [symboles non conformes]
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Acheson, Richard Mervyn. "Regulation of phosphoenolpyruvate carboxykinase in leaves of Panicum maximum". Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312745.

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7

Souza, Madson Williame Melo. "Intervalo de corte em cultivares de Panicum maximum Jacq". Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/5788.

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Fundação de Amparo a Pesquisa do Estado de Minas Gerais
Since the 1990s, studies on tropical forages have been carried out to interrupt the rest period when the canopy intercepts 95% of the incident light under rotational stocking. With such criterion, the rest period should be variable. However, some species and, or cultivars of forage plants used in livestock were evaluated and compared in terms of production and forage quality in a management in a single condition, characterized by the adoption of fixed rest periods. Thus, this type of assessment did not take into account that such plants have distinct morphological and physiological and agronomic characteristics, which implies in the adoption of variable rest periods. Therefore, the objective of this work was to evaluate Panicum maximum cultivars under two cut frequencies, 28 days and time for the canopy to reach 95% of light interception (LI). The experiment was conducted in a site in the Animal Science Department (DZO) at the Federal University of Viçosa (UFV), from November 2011 to October 2012. The experimental design was a complete random block with 4 x 2 factorial design with three replications, totaling 24 experimental units. Treatments consisted of four cultivars of Panicum maximum (Colonião grass, Mombasa grass, Ever-Green grass and Tanzania grass) in two cut frequencies (28 days and 95 % of LI). During the experimental period, the height of the plants in the plots was monitored at the same time as the light interception by the canopy. Morphogenetic and structural traits were evaluated in four tillers per plot. Growth of leaves, stems and leaf senescence was monitored weekly. From these data, the following was calculated: the number of live leaves per tiller (NLT), phyllochron (PHY), leaf elongation rate (LER), leaf senescence rate (LSR) and stem elongation rate (SER). The tiller dynamics was evaluated in two clumps, limited by metal frames (20 x 20 cm) per experimental unit. All basal tillers within the frame were counted and identified in each generation. Appearance rate, mortality rate and survival rate and the total number of tillers were evaluated based on the counts. Forage mass was estimated at the pre -cut condition and at two representative sites in the plot. The harvested forage was separated into leaf blade, green stem and dead forage. Those data was used to quantify the total DM yield (TDM) and the leaf blade components (BDM), stem (SDM) and dead forage (DDM). Data were grouped according to the seasons of the year and submitted to analysis of variance using the statistical package SAEG, version 8.1, by applying the test of Tukey at 5% of probability. The increase in the competition for light among tillers in the 28-day-of-age cultivars resulted in lower LER and higher SER, TSF and phyllochron in the rainy season. During the rainy season, Colonião grass presented higher MST yield than the other cultivars. Regarding production of BDM, Mombasa and Colonião cultivars did not differ and had higher yields than the others. The Mombasa grass had the lowest production of SDM compared with other forages. The production of DDM by Colonião grass was higher than Ever- Green grass and similar to the production of Tanzania. During this period, cultivars managed with 95% of IL presented higher tissue flow with greater LDM and lower SDM and DDM in relation to the 28-day defoliation. During the dry season, Ever-green grass displayed higher TDM and LDM when managed with 95% LI. Overall, during the dry season, there were no differences in production and morphological composition of forage in the assessed managements. Cultivars managed with 95% LI had more appropriate morphological composition, especially in the rainy season, compared to those managed with 28 days. Moreover, due to higher production of MSC and DDM in the 28-day frequency, Colonião and Ever- green cultivars should not be compared in terms of production and structural conditions with other cultivars in single management conditions.
A partir da década de 1990, estudos com plantas forrageiras tropicais têm sido realizados de modo a interromper o período de descanso quando o dossel intercepta 95% da luz incidente sob lotação intermitente. Com esse critério, o período de descanso deve ser variável. No entanto, algumas espécies e, ou, cultivares de plantas forrageiras utilizadas na exploração da pecuária foram avaliadas e comparadas, em termos de produção e qualidade de forragem, numa condição única de manejo, caracterizada pela adoção de períodos de descansos fixos. Assim, esse tipo de avaliação não levou em consideração que tais plantas possuem características morfofisiológicas e agronômicas distintas, o que implica adoção de períodos de descanso variáveis. Portanto, objetivou-se com este trabalho avaliar cultivares de Panicum maximum submetidas a duas frequências de corte, 28 dias e tempo para que o dossel alcançasse 95% de interceptação luminosa (IL). O experimento foi realizado em área do Departamento de Zootecnia (DZO) da Universidade Federal de Viçosa (UFV), no período de novembro de 2011 a outubro de 2012. O delineamento experimental foi de blocos completos casualizados em arranjo fatorial 4 x 2 com três repetições, perfazendo 24 unidades experimentais. Os tratamentos foram definidos por quatro cultivares de Panicum maximum (Colonião, Mombaça, Sempre-Verde e Tanzânia) em duas frequências de corte (28 dias e 95% de IL). Durante o período experimental, a altura das plantas nas parcelas foi monitorada de forma concomitante com a interceptação de luz pelo dossel forrageiro. As características morfogênicas e estruturais foram avaliadas em quatro perfilhos por parcela, cujo crescimento de folhas, colmos e senescência foi acompanhado semanalmente. A partir dessas informações foram calculadas as variáveis Número de Folhas Vivas por Perfilho (NFV), Filocrono (FIL), Taxa de Alongamento Foliar (TAlF), Taxa de Senescência de Folhas (TSF) e Taxa de Alongamento de Colmos (TAlC). A dinâmica do perfilhamento foi avaliada em duas touceiras delimitadas por molduras metálicas (20 x 20 cm) por unidade experimental. Todos os perfilhos basilares dentro da moldura foram quantificados e identificados em cada geração. Com base nas contagens, foram estimados a Taxa de aparecimento, Taxa de mortalidade e Taxa de sobrevivência e O número total de perfilhos. A massa de forragem foi estimada na condição de pré-corte e em dois pontos representativos da parcela, sendo toda a forragem colhida separada em lâmina foliar, colmo verde e forragem morta. Com esses dados foi possível quantificar a produção de MS total (MST) e dos componentes lâmina foliar (MSL), colmo (MSC) e forragem morta (MSM). Os dados foram agrupados de acordo com as estações do ano e submetidos à análise de variância, utilizando-se o pacote estatístico SAEG, versão 8.1, mediante a aplicação do teste de Tukey a 5% de probabilidade. O aumento da competição por luz entre os perfilhos nas cultivares com 28 dias acarretou menores TAlF e maiores TAlC, TSF e filocrono, no período das águas. Durante o período chuvoso, o capim-colonião apresentou maior produção de MST em relação às demais cultivares. Para produção de MSL, as cultivares Mombaça e Colonião não diferiram entre si e apresentaram maiores produções que as demais. O capim-mombaça teve a menor produção de MSC em comparação com as outras forrageiras. A produção de MSM pela cultivar Colonião foi superior à da Sempre-Verde e semelhante à da Tanzânia. Nesse período, as cultivares manejadas com 95% de IL apresentaram maior fluxo de tecidos com maior MSL e menores MSC e MSM em relação à desfolhação com 28 dias. Durante o período seco, o capim-sempre-verde exibiu maior MST e MSL quando manejado com 95% de IL. Em geral, durante a época seca não houve diferenças em produção e composição morfológica da forragem nos dois manejos avaliados. As cultivares manejadas com 95% de IL tiveram composição morfológica mais adequada, especialmente na época das chuvas, em relação àquelas manejadas com 28 dias. Ademais, devido à maior produção de MSC e MSM na frequência de 28 dias, as cultivares Colonião e Sempre-Verde não deveriam ser comparadas, em termos produtivos e estruturais, com outras cultivares em condições únicas de manejo.
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Tipping, Claudia. "Morphological and structural investigations into CÓ, CÔ and CÓ/CÔ members of the genus Panicum grown under elevated COÒ concentrations /". View thesis, 1996. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030625.142322/index.html.

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Thesis (Phd. Science, Technology & Agriculture)--University of Western Sydney, Hawkesbury, 1996.
"A thesis presented in fulfilment of the requirement for the degree of Doctor of Philosophy, School of Horticulture, Faculty of Science, Technology and Agriculture, University of Western Sydney, Hawkesbury." Author: Claudia Tipping (nee Decker).
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Ghannoum, Oula. "Responses of C3 and C4 panicum grasses to CO2 enrichment /". View thesis View thesis, 1997. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030507.120250/index.html.

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Thesis (Ph. D. of Philosophy)--University of Western Sydney, Hawkesbury, 1997.
"A thesis submitted in fulfilment of the requirement for the degree of Doctor of Philosophy." Includes bibliographical references (p. 183-205).
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Qi, Dong. "Molecular biology study of satellite panicum mosaic virus capsid protein". [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2584.

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Libri sul tema "Panicum"

1

Zuloaga, Fernando, e Sandra Aliscioni. Panicum (Poaceae). Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0.

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2

Mohlenbrock, Robert H. Grasses: Panicum to Danthonia. 2a ed. Carbondale: Southern Illinois University Press, 2001.

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3

Morishita, Don W. Wild proso millet, Panicum miliaceum. [Moscow, Idaho]: University of Idaho Cooperative Extension System, 1992.

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Zuloaga, Fernando O. Classification of the outlying species of New World Panicum (Poaceae: Paniceae). City of Washington: Smithsonian Institution Press, 1985.

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5

United States. Soil Conservation Service, a cura di. 'Dacotah' switchgrass. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1990.

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United States. Soil Conservation Service, a cura di. 'Forestburg' switchgrass. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1988.

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Jayarame, Gowda, e All India Coordinated Small Millets Improvement Project. Project Coordination Cell., a cura di. Evaluation of little milet (Panicum sumatrense Roth ex Roemer and Schultes) germplasm. Bangalore: Project Coordination Cell, All India Coordinated Small Millets Improvement Project, Indian Council of Agricultural Research, 2007.

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Wasser, Clinton H. Switchgrass (Panicum virgatum): Section 7.1.2, US Army Corps of Engineers wildlife resources management manual. Vicksburg, Miss: U.S. Army Engineer Waterways Experiment Station, 1986.

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Chaume, Régine. Organisation de la variabilité génétique du complexe agamique Panicum maximum: En vue de son utilisation en amélioration des plantes. Paris: Editions de l'ORSTOM, 1985.

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Stanley, Rachman, e Maser Jack D, a cura di. Panic: Psychological perspectives. Hillsdale, N.J: L. Erlbaum Associates, 1988.

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Capitoli di libri sul tema "Panicum"

1

Bhandari, Hem S., Masumi Ebina, Malay C. Saha, Joseph H. Bouton, Sairam V. Rudrabhatla e Stephen L. Goldman. "Panicum". In Wild Crop Relatives: Genomic and Breeding Resources, 175–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14255-0_11.

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Zuloaga, Fernando, e Sandra Aliscioni. "Phylogeny and Evolution". In Panicum (Poaceae), 29–32. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_7.

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Zuloaga, Fernando, e Sandra Aliscioni. "History of the Genus". In Panicum (Poaceae), 5–7. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_3.

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Zuloaga, Fernando, e Sandra Aliscioni. "Materials and Methods". In Panicum (Poaceae), 3. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_2.

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Zuloaga, Fernando, e Sandra Aliscioni. "Geographic Distribution and Habitat". In Panicum (Poaceae), 33–35. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_8.

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Zuloaga, Fernando, e Sandra Aliscioni. "Morphology". In Panicum (Poaceae), 9–15. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_4.

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Zuloaga, Fernando, e Sandra Aliscioni. "Chromosome Numbers". In Panicum (Poaceae), 23–27. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_6.

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Zuloaga, Fernando, e Sandra Aliscioni. "Taxonomic Treatment". In Panicum (Poaceae), 37–274. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_9.

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Zuloaga, Fernando, e Sandra Aliscioni. "Species Excluded". In Panicum (Poaceae), 275–80. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_10.

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Zuloaga, Fernando, e Sandra Aliscioni. "Leaf Anatomy". In Panicum (Poaceae), 17–21. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-33768-0_5.

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Atti di convegni sul tema "Panicum"

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Oliveira, Lázaro Tiago de, e Bruno Borges Deminicis. "Metanálise da resposta de panicum maximum à adubação nitrogenada". In 7º Congresso de Iniciação à Pesquisa, Criação e Inovação. GM Editorial, 2023. http://dx.doi.org/10.61202/2595-9328.7cipcisb0001.

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O presente trabalho empregou um estudo metanalítico para sumarizar e analisar dados sobre adubação nitrogenada em capim Panicum maximum. Foram selecionados trabalhos de pesquisa realizados no Brasil nos últimos 10 anos, incluindo apenas artigos científicos e dissertações/teses. Com base nos dados contidos nesses trabalhos, foi calculado o incremento relativo de matéria seca e de proteína bruta em relação ao tratamento controle (ausência de adubação nitrogenada) e a eficiência da utilização do nitrogênio na produção de matéria seca e na produção de proteína bruta. Os dados obtidos foram submetidos à análise de variância para efeito linear e quadrático em cada uma das variáveis, no caso de significância, foi realizada análise de regressão. A fertilização nitrogenada no capim Panicum maximum acima de 100 quilogramas de nitrogênio por hectare compromete a eficiência da produção de matéria seca. Para todas as doses de nitrogênio ocorre uma drástica redução da eficiência da produção de proteína bruta pelo capim Panicum maximum.
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Oliveira, Lázaro Tiago de, e Bruno Borges Deminicis. "Metanálise da resposta de panicum maximum à adubação nitrogenada". In 7º Congresso de Iniciação à Pesquisa, Criação e Inovação. GM Editorial, 2023. http://dx.doi.org/10.61202/2595-9328.7cipcisb0001.

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O presente trabalho empregou um estudo metanalítico para sumarizar e analisar dados sobre adubação nitrogenada em capim Panicum maximum. Foram selecionados trabalhos de pesquisa realizados no Brasil nos últimos 10 anos, incluindo apenas artigos científicos e dissertações/teses. Com base nos dados contidos nesses trabalhos, foi calculado o incremento relativo de matéria seca e de proteína bruta em relação ao tratamento controle (ausência de adubação nitrogenada) e a eficiência da utilização do nitrogênio na produção de matéria seca e na produção de proteína bruta. Os dados obtidos foram submetidos à análise de variância para efeito linear e quadrático em cada uma das variáveis, no caso de significância, foi realizada análise de regressão. A fertilização nitrogenada no capim Panicum maximum acima de 100 quilogramas de nitrogênio por hectare compromete a eficiência da produção de matéria seca. Para todas as doses de nitrogênio ocorre uma drástica redução da eficiência da produção de proteína bruta pelo capim Panicum maximum.
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Emmanuel L. de Lima, Véras, Campelo Brenda Adelino de Macêdo, Pereira Marislayne de Gusmão, Neto João Virgínio Emerenciano e Difante Gelson dos Santos. "PERFILHAMENTO DE CULTIVARES DE PANICUM MAXIMUM NO NORDESTE DO BRASIL1". In III CONGRESSO INTERNACIONAL DAS CIÊNCIAS AGRÁRIAS. INSTITUTO INTERNACIONAL DESPERTANDO VOCAÇÕES, 2018. http://dx.doi.org/10.31692/2526-7701.iiicointerpdvagro.2018.00605.

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Hasseldine, Benjamin P. J., Chao Gao e Yaning Li. "Damage Initiation and Evolution of Panicum Miliaceum Seeds Under Compression". In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71826.

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Panicum Miliaceum (common millet) is an ancient crop and spread widely across the world. The high survivability and adaptability of this species is attributed to the unique structure of the seedcoat. Recently, it was found the seedcoat has a fascinating complex microstructure with star-shaped epidermis cells, articulated together via wavy suture interfaces, to form a compact jigsaw puzzle-like layer. To explore the damage initiation and evolution during quasi-static uniaxial compression, finite element simulations were performed for full seeds, and single seedcoat and kernels. A parametric study was conducted for the seedcoat and kernel to explore the relationship between material properties and damage. The material properties of the seedcoat and kernel were obtained by nanoindentation testing. A Hashin progressive damage material model was used to capture damage evolution of the seedcoat, combined with a damage plasticity model for the kernel. The simulation results show the capabilities in modeling the damage of seeds.
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El Mouttaqi, Ayoub, Ihssane Mnaouer, Abdelaziz Nilahyane, Dennis Ashilenje, Erick Amombo, Mohamed Belcaid, Mohamed Ibourki et al. "Integrated Agronomic Practices to Enhance Forage Productivity and Quality of Blue Panicum (Panicum antidotale Retz.) under Saline and Arid Conditions in the South of Morocco". In LAFOBA2. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/environsciproc2022016050.

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Cui Li, Qing-Hai Wang, Bo Xiao e Yun-Fu Li. "Phytoremediation potential of switchgrass (Panicum virgatum L.) for Cr-polluted soil". In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893582.

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Amaral, M. A. C. M., F. C. Mendonça, E. Y. Maeda, L. F. Christofoletti, A. C. Sanches e R. D. Coelho. "DESEMPENHO PRODUTIVO DE PANICUM MAXIMUM CV. MOMBAÇA PARA DIFERENTES MANEJOS DE IRRIGAÇÃO". In III Inovagri International Meeting. Fortaleza, Ceará, Brasil: INOVAGRI/INCT-EI, 2015. http://dx.doi.org/10.12702/iii.inovagri.2015-a306.

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Beatriz Graciano da Costa, ANA, GELSON dos Santos Difante, JOAO Virgínio Emerenciano Neto, EMMANUEL Lievio de Lima Veras e JESSICA Gomes Rodrigues. "CARACTERÍSTICAS ESTRUTURAIS DE SEIS CULTIVARES DE PANICUM NO PERÍODO DO ESTABELECIMENTO INICIAL". In II Congresso Internacional das Ciência Agrárias. Instituto Internacional Despertando Vocações, 2017. http://dx.doi.org/10.31692/2526-7701.iicointerpdvagro.2017.00236.

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Fanindi, A., Sajimin, I. Herdiawan, E. Sutedi, Harmini e S. Rusdiana. "Productivity of benggala grass (Panicum maximum) putative mutants under palm oil plantation". In INTERNATIONAL CONFERENCE ON ORGANIC AND APPLIED CHEMISTRY (ICOAC) 2022. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0183960.

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Campana Texeiras, Adalto, Leryssa de Brito Roman e Laura Sampaio. "CRESCIMENTO DO CAPIM Panicum maximum cv. MOMBAÇA EM RESPOSTA A ADUBAÇÃO NITROGENADAS". In Semana Nacional da Ciência e Tecnologia IFRO Campus Cacoal. ,: Even3, 2022. http://dx.doi.org/10.29327/snctifrocampuscacoal2021.411929.

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Rapporti di organizzazioni sul tema "Panicum"

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Juenger, Thomas, e Ed Wolfrum. The Genetics of Biofuel Traits in Panicum Grasses: Developing a Model System with Diploid Panicum Hallii. Office of Scientific and Technical Information (OSTI), luglio 2016. http://dx.doi.org/10.2172/1337332.

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Conger, B. V. Development of In Vitro Systems for Switchgrass (Panicum virgatum) - Final Report for 1992 to 2002. Office of Scientific and Technical Information (OSTI), gennaio 2003. http://dx.doi.org/10.2172/814267.

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3

Abril Castro, Jorge Leonardo, Ruth Rebeca Bonilla B. e Belisario Roncallo Fandiño. Effect of inoculation with nitrogen-fixing bacteria on the growth of Panicum maximum Jacq. under water stress conditions. Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA, 2016. http://dx.doi.org/10.21930/agrosavia.poster.2016.55.

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En las áreas secas de la región caribeña de Colombia, la producción de forraje se ve afectada en términos de cantidad y calidad por condiciones de sequía presentadas durante períodos prolongados del año. La estación seca causa pérdidas en la alimentación y productividad de sistemas ganaderos. Muchas especies de bacterias nitrogenadas son asociadaa a diferentes plantas en la región, que pueden beneficiar el crecimiento y desarrollo de estas especies en condiciones de estrés hídrico. El objetivo de esta investigación fue evaluar el efecto de la inoculación con bacterias nitrogenadas en el desarrollo de Panicum maximum Jacq. bajo condiciones de sequía.
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Romero Perdomo, Felipe, Mauricio Camelo Rusinque, Paola Criollo Campos e Ruth Bonilla. Respuesta del crecimiento de Azospirillum brasilense a diferentes condiciones físicoquímicas. Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA, 2015. http://dx.doi.org/10.21930/agrosavia.poster.2015.2.

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Dentro de las Bacterias promotoras de crecimiento vegetal (BPCV), Azospirillum es uno de los géneros que más impacto y aplicación ha tenido en gramíneas a nivel mundial (1). Cárdenas et al. (2014) demostraron la eficiencia de la cepa C16 (A. brasilense) para promover el crecimiento de cultivos de Panicum maximum Jacq. Con el fin de potenciar la actividad microbiana de las BPCV, es necesario definir los parámetros de crecimiento celular para la producción de biomasa (3). Aunque existen varios estudios sobre el crecimiento del género Azospirillum (4), pocos se han enfocado en el efecto de condiciones físico-químicas sobre su multiplicación masiva. Por lo tanto, el objetivo del presente estudio fue evaluar el efecto de factores fisicoquímicos como el pH y la temperatura sobre el crecimiento de la cepa C16
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Portz, Dennis N., e Gail R. Nonnecke. TheEffects of Hand Cultivation, Herbicide, or Monoculture Cover Crops: Rudbeckia hirta and Panicum virgatum on Grapevine Growth, Pest Populations, and Soil Characteristics. Ames: Iowa State University, Digital Repository, 2008. http://dx.doi.org/10.31274/farmprogressreports-180814-225.

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Whitecloud, Simone, Holly VerMeulen, Franz Lichtner, Nadia Podpora, Timothy Cooke, Christopher Williams, Michael Musty, Irene MacAllister e Jason Dorvee. Understanding plant volatiles for environmental awareness : chemical composition in response to natural light cycles and wounding. Engineer Research and Development Center (U.S.), novembre 2022. http://dx.doi.org/10.21079/11681/45961.

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Abstract (sommario):
Plants emit a bouquet of volatile organic compounds (VOCs) in response to both biotic and abiotic stresses and, simultaneously, eavesdrop on emit-ted signals to activate direct and indirect defenses. By gaining even a slight insight into the semantics of interplant communications, a unique aware-ness of the operational environment may be obtainable (e.g., knowledge of a disturbance within). In this effort, we used five species of plants, Arabidopsis thaliana, Panicum virgatum, Festuca rubra, Tradescantia zebrina, and Achillea millefolium, to produce and query VOCs emitted in response to mechanical wounding and light cycles. These plants provide a basis for further investigation in this communication system as they span model organisms, common house plants, and Arctic plants. The VOC com-position was complex; our parameter filtering often enabled us to reduce the noise to fewer than 50 compounds emitted over minutes to hours in a day. We were able to detect and measure the plant response through two analytical methods. This report documents the methods used, the data collected, and the analyses performed on the VOCs to determine if they can be used to increase environmental awareness of the battlespace.
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Carlson, Mark, Kris James Mitchener e Gary Richardson. Arresting Banking Panics: Fed Liquidity Provision and the Forgotten Panic of 1929. Cambridge, MA: National Bureau of Economic Research, ottobre 2010. http://dx.doi.org/10.3386/w16460.

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Milner, Richard. PANIC11 HEP Final Scientific Report. Office of Scientific and Technical Information (OSTI), gennaio 2013. http://dx.doi.org/10.2172/1060402.

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Grada, Cormac, e Eugene White. Who Panics During Panics? Evidence from a Nineteenth Century Savings Bank. Cambridge, MA: National Bureau of Economic Research, marzo 2002. http://dx.doi.org/10.3386/w8856.

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Baron, Matthew, Emil Verner e Wei Xiong. Banking Crises without Panics. Cambridge, MA: National Bureau of Economic Research, marzo 2020. http://dx.doi.org/10.3386/w26908.

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