&lt;b&gt;Agronomic traits and nutritional value of forage sorghum genotypes

Lima, Luciana Oliva Barbosa; Pires, Daniel Ananias de Assis; Moura, Marielly Maria Almeida; Rodrigues, J. A. S.; Tolentino, Daniella Cangussú; Viana, M. C. M.

doi:10.4025/actascianimsci.v39i1.32356

Cited by 5 publications

(7 citation statements)

References 7 publications

(7 reference statements)

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“…In Aw climate, although the rainfall regime was higher than in BSh climate with a rainfall of 1012,5 mm throughout the production cycle, there were lower thermal indices, which may have contributed to the shorter stature of plants in comparison with climate BSh, which had higher temperature averages. The results in both locations were similar to those observed by Lima et al (2017) studying variation in the height of sorghum hybrids plants in four municipalities in the Brazilian states of Goiás, Rio Grande do Sul and Minas Gerais, with averages ranging from 180 to 283 cm.…”

Section: Growth Characteristicssupporting

confidence: 87%

“…However, the NDF average values in both climates were higher than those recommended by Van Soest (1994); he stated that the NDF content must be between 500 and 600 g kg -1 DM. The levels observed were higher than those found by Lima et al (2017), who evaluated 24 genotypes of forage sorghum in four Brazilian municipalities and reported averages ranging from 436 to 657 g kg -1 DM, however similar to those found by Paula, Abreu, Zandonadi, Litz and Albuquerque (2017), who evaluated 25 sorghum varieties in Uberlândia, Minas Gerais, Brazil and observed average NDF values in the harvest varying between 80 and 582 g kg -1 DM.…”

Section: Chemical Compositionsupporting

confidence: 76%

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Forage sorghum production under rainfed farming in sites with and without climate restriction for maize cultivation

Farias

Bezerra

Silva

et al. 2022

Semina: Ciênc. Agrár.

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Forage sorghum is a crop that can be planted in semiarid regions, due to its greater adaptability to dry climate environments, and can replace maize in these regions, which are often unsuitable for its production. Thus, the objective of the study was to evaluate the structural, morphological and nutritional characteristics of 23 sorghum hybrids forage cultivated in rainfed conditions, planted in different climate conditions, comparing the hybrids, in order to determine what produces the best in the climatic conditions of the explored region, and also to indicate whether this crop can be planted as a replacement for maize in environments not suitable for planting it. The research was conducted in climate BSh in the Municipality of Alvorada do Gurgueia, and climate Aw in the Municipality of Bom Jesus, both in the state of Piauí from 2014 to 2015. Each trial consisted of 20 experimental forage sorghum hybrids [Sorghum bicolor (L.) Moench], and three commercial hybrids. A randomized block design was used, with three replications in a factorial scheme (2 × 23). The growth characteristics determined were hybrid × climate interaction for the variables plant height, lodging and leaf/stem ratio. For the variable number of tillers, there was a significant difference only between hybrids. There was no difference between hybrids only for the lodging variable of climate Aw. The other variables showed a difference in all hybrids evaluated. There was an interaction for production of dead matter and total dry forage mass between the different environments and hybrids evaluated. For leaf production, there was an effect only for the different environments. For the chemical characteristics, there was an interaction for all variables analyzed between the different environments and hybrids evaluated. The semi-arid region of the State of Piauí, climate BSh which presents a high climatic risk for maize cultivation, proved to be favorable for forage sorghum production. The forage sorghum also presented agronomic characteristics similar to those found in semi humid climate Aw, a favorable region for maize cultivation. In addition, the tested hybrids showed good chemical characteristics, so the BSh climate has great exploratory potential for the cultivation of forage sorghum.

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Section: Growth Characteristicssupporting

confidence: 87%

Section: Chemical Compositionsupporting

confidence: 76%

Forage sorghum production under rainfed farming in sites with and without climate restriction for maize cultivation

Farias

Bezerra

Silva

et al. 2022

Semina: Ciênc. Agrár.

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“…O valor médio observado para PB (8,04%) e valor mínimo (5,70%) (Tabela 2) está dentro da faixa de 4,5 a 8,2% registrada para silagens de sorgo (WHITE et al, 1988;LIMA et al, 2017). Verificou-se valor máximo de (13,59%) para PB.…”

Section: Resultsunclassified

Avaliação da espectroscopia no infravermelho próximo para previsão da composição químico-bromatológica da silagem de sorgo

Santos¹,

Bomfim²,

Santos³

et al. 2023

Rev Agr Acad

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The objective was to evaluate the adequacy of near-infrared spectroscopy for predicting the chemical-bromatological composition of sorghum BRS 658 and BRS Ponta Negra silage, in PVC mini-silos, ensiled at grain maturation stages E7 or milky, E8 or pasty and hard mealy. The model using the Savitzky-Golay 1st Derivative for DIVMS showed lower RMSEC, RMSECV and RMSEP (5.96, 7.42, 6.96) respectively. For DIVMO, the Multiplicative Signal Correction (MSC) + Savitzky-Golay 1st Derivative model with two windows showed better performance, with higher R2 in calibration, validation and prediction (0.82, 0.72, 0.56) respectively. In the independent validation of the models, no significant difference was observed between the predicted and reference values for the BP, IVMSD and IVMOD variables. The NIRS methodology is capable of accurately predicting the protein content, in vitro digestibility of dry matter and in vitro digestibility of organic matter in sorghum silage.

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“…Em todas as análises realizadas neste trabalho, percebeu-se que independentemente das doses de N e a época ou manejo de cortes, não houve diferenças entre os tratamentos (P>0,05) na matéria seca (%) das plantas de sorgo (Tabelas 1 a 5), que variou de 34,7 a 38,5%. Estes valores estão em concordância com os obtidos por Lima et al (2017), que demostraram uma variação de 37,15 a 50,13 % no teor de matéria seca de 24 híbridos de sorgo cultivados em diferentes regiões brasileiras.…”

Section: Manejo De Cortesunclassified

Produtividade do sorgo forrageiro em função de doses de nitrogênio e manejo de cortes

Theodoro

Ribeiro

Pacheco

et al. 2021

RSD

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O sorgo forrageiro é uma planta com elevado potencial para o Centro Oeste brasileiro, especialmente por ser considerada tolerante a condições adversas e da elevada capacidade de perfilhamento e rebrote das soqueiras após ser cortado para silagem. O objetivo deste trabalho foi avaliar a influência de doses de nitrogênio (N) e o manejo de cortes na produtividade do híbrido de sorgo forrageiro Agri 002E, cultivado na região central de Mato Grosso do Sul. O delineamento foi de blocos ao acaso, com quatro repetições, em esquema fatorial 2x4 e os fatores foram: duas épocas de corte e quatro doses de nitrogênio em cobertura (0, 50, 150 e 200 kg.ha-1). As épocas de primeiro corte (PC) foram aos 63 (PC 63) e 97 (PC 97) dias após a semeadura. O experimento foi repetido após o PC até um segundo corte (SC), que ocorreu após 160 dias da semeadura. Foi avaliada a produtividade das plantas logo após cada corte. Considerou-se como manejo de corte ambos os cortes: 1. PC63, sucedido pelo SC 97 (PC63+SC97) e 2. PC97, sucedido pelo SC 63 (PC97+SC63). Independentemente do período de permanência das plantas ao campo, o sorgo produziu mais no primeiro corte e o efeito das doses de N na produtividade foi restrito ao período de 97 dias que precedeu o SC. O teor de matéria seca variou de 34,7 a 38,5%. O PC97+SC63 foi mais eficiente por proporcionar as maiores produtividades de massa verde (96,6 t.ha-1) e seca (37,9 t.ha-1).

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<b>Agronomic traits and nutritional value of forage sorghum genotypes

Cited by 5 publications

References 7 publications

Forage sorghum production under rainfed farming in sites with and without climate restriction for maize cultivation

Forage sorghum production under rainfed farming in sites with and without climate restriction for maize cultivation

Avaliação da espectroscopia no infravermelho próximo para previsão da composição químico-bromatológica da silagem de sorgo

Produtividade do sorgo forrageiro em função de doses de nitrogênio e manejo de cortes

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