Características agronômicas de variedades de milho para produção de silagem

Santos, Rafael Dantas dos; Pereira, L. G. R.; Neves, A. L. A.; Azevêdo, José Augusto Gomes; Moraes, Salete Alves de; Costa, Cleber Thiago Ferreira

doi:10.4025/actascianimsci.v32i4.9299

Cited by 20 publications

(26 citation statements)

References 6 publications

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“…Mean values of the proportion of stem and leaf in DM were 40.64% and 21.24%, respectively. The percentage of leaf in DM was similar to that found by Santos et al (2010) with corn cultivars for silage in the drier areas of Pernambuco State, at a mean value of 19.0%. However, the percentage of stem observed in this study (28.4%) was greater than that found by these authors for this variable.…”

Section: Resultssupporting

confidence: 54%

“…In dry areas, the PGM result was similar to that verified by Santos et al (2010) at 33.8 Mg ha -1 , whereas the PDM result was inferior to that found by Santos et al (2010) (13.7 Mg ha -1 ), who worked with different corn cultivars for silage production in the northeast semiarid region, where the water demand for plants was met by irrigation. In spite of all the differences in yields across regions from Brazil, PGM and PDM are the first factors to be considered when gathering information about selection of a specific cultivar for silage production and on the planning and design of silos (FERRARI JUNIOR et al, 2005).…”

Section: Resultsmentioning

confidence: 41%

“…However, corn yield is below the national means when it is grown for silage production in that region, most likely as a reflection of the particular local climate, technology used, and choice of inadequate cultivars. This can also be the result of a lack of knowledge about the agronomic performance of plants available and recommended for the semiarid region (SANTOS et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Agronomic characteristics of corn cultivars for silage production

et al. 2015

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The objective of this study was to assess agronomic characteristics of five corn cultivars (BRS 1055, BRS 3035, BRS 2022, SÃO JOSÉ and BRS CAIMBÉ) recommended for silage production in Pernambuco State. At this productivity of green matter (PGM), productivity of dry matter (PDM), number of corn ears (NCE), plant height (PH), ear insertion height (EIH), plant population (PP), percentage of broken plants (PBP) and proportions of ear, stem, and leaf in the GM and DM were determined. The experiment was set up in a randomized block design with five treatments (cultivars) and five replications. SÃO JOSÉ was prominent for PH, EIH, and PBP, with mean values of 2.05 m, 1.15 m, and 7.62%, respectively. BRS 3035, BRS 2022, and BRS CAIMBÉ attained the highest PDM (9.68, 9.66, and 8.62 Mg ha -1 , respectively). The evaluated cultivars had a good balance of leaf:stem:ear ratios and were in accordance with those exhibited by corn cultivars selected for silage production in different Brazilian regions. In general, the cultivars BRS 2022, BRS 3035, and BRS CAIMBÉ excelled in the most agronomic characteristics for silage production in the Borborema Plateau, a semiarid zone of Pernambuco State, when compared with the other cultivars. Key words: Zea mays, semiarid, silage, forage, ruminant, nutrition ResumoO objetivo deste estudo foi avaliar as características agronômicas de cinco cultivares de milho (BRS 1055, BRS 3035, BRS 2022, SÃO JOSÉ and BRS CAIMBÉ) recomendados para produção de silagem no Agreste de Pernambuco. Para tanto foram determinadas as produtividades de matéria verde (PMV), de matéria seca (PMS), número de espigas (NE), altura de planta (AP), altura de inserção de espigas (AIE), população de plantas (PP), porcentagem de plantas quebradas (PQB) e as proporções de espiga (%EMS), colmo (%CMS) e folha (%FMS) na matéria verde e na matéria seca. Foi utilizado o delineamento experimental em blocos ao acaso, com cinco tratamentos (cultivares) e cinco repetições. O cultivar SÃO JOSÉ destacou-se em relação à altura de planta, de inserção de espigas e porcentagem de plantas quebradas, apresentando média de 2,05m, 1,15m e 7,62%, respectivamente. Os cultivares BRS 3035, BRS 2022 e BRS CAIMBÉ obtiveram as maiores produções de matéria seca (9,68, 9,66 e 8,62 Mg ha -1 , respectivamente). Os cultivares avaliados apresentaram bom equilíbrio na relação folha: colmo: espiga e estão de acordo com os resultados apresentados para cultivares de milho consagrados para produção de silagem em distintas regiões brasileiras. Em geral, os cultivares BRS 2022, BRS 3035, and BRS CAIMBÉ se destacaram em relação aos demais nas características agronômicas para produção de silagem na Serra da Borborema, que é uma zona semiárida do estado de Pernambuco.

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Section: Resultssupporting

confidence: 54%

Section: Resultsmentioning

confidence: 41%

Section: Introductionmentioning

confidence: 99%

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Agronomic characteristics of corn cultivars for silage production

et al. 2015

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“…Paziani et al (2009) evaluated agronomic traits in corn hybrids for silage, and obtained means of 6916 and 50470 kg ha -1 of yield at silage stage and of fresh mass yield, respectively. In contrast, Santos et al (2010) obtained mean of 33800 kg ha -1 of FMY when evaluating corn varieties for silage. All traits presented heritability (h 2 ) based on family means (above 51.23%).…”

Section: Analysis Of Variance and Genetic Parametersmentioning

confidence: 97%

Prediction of genetic gains and correlations in corn hybrids for silage

Crevelari¹,

Durães²,

Bendia³

et al. 2017

Aust J Crop Sci

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During the dry season the production of pastures dicreases. Usually, it makes the situation necessary to use corn silage as fibrous fodder source. The aim of this study was to develop corn hybrids for silage production, prioritizing hybrid combinations of the heterotic group 'DENT' to better understand the association between the evaluated traits and to optimize the selection process by using selection indices. Nineteen topcross hybrids and five controls were evaluated in a complete randomized block design with four and five replications in the agricultural years of 2013 and 2014. The following traits were evaluated: plant height, first ear height, stem diameter, yield at silage stage, ear yield with and without straw at silage stage, fresh mass yield, and proportion of grains in the fresh mass. The highest coefficients of correlation were obtained between yield and ear yield with straw (r = 0.94**), and between ear yield with straw and fresh mass yield (r = 0.89**). The Mulamba & Mock selection index was used for prediction of genetic gains. For selection of the superior hybrids, the index resulted in higher estimates of predicted gains for yield at silage stage and fresh mass yield, with values of 6.13 and 4.46%, respectively, using weights assigned. The use of selection indices allows simultaneous prediction of gains in the two main traits. Topcross hybrids presented high potential for silage yield in the North and Northwest Regions.

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“…A utilização de alimentos conservados na forma de silagem e ou feno é apontada como solução bastante eficiente para o problema da sazonalidade da produção das pastagens, pois pode proporcionar volumoso de boa qualidade, como demonstrado amplamente na literatura, para bovinos, ovinos e caprinos (FeRRARi JR. et al, 2005;oliveiRA et al, 2009;sAntos et al, 2010). Assim, as silagens são consideradas, por diferentes autores, como uma alternativa viável para períodos de baixa produção de forrageiras.…”

Section: Introductionunclassified

Avaliação nutritiva da silagem de cártamo, produção de biomassa, grãos e óleo

et al. 2016

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RESUMO: Objetivou-se avaliar o valor nutritivo da biomassa de cártamo (Carthamus tinctorium L) submetida à ensilagem em três tratamentos. Foi realizado um ensaio de digestibilidade aparente dos nutrientes com ovinos e determinada a composição química e a digestibilidade in vitro da matéria seca (MS) na biomassa e nas silagens obtidas. Também foram quantificadas as produções de MS, grãos e óleo por hectare da cultura do cártamo, sendo a produção de MS de 12,4±4,9 t/ ha; grãos de 2,9±1,5 t/ha e a de óleo bruto de 0,7 ±0,2 t/ha. Os tratamentos aplicados à biomassa para ensilagem foram: CiN = cártamo ensilado in natura; CE= cártamo emurchecido (duas horas de exposição ao sol); CPC= cártamo + 5% polpa cítrica. A composição química das silagens nos tratamentos CiN, CE e CPC foi 10,80; 11,15 e 10,07% de proteína bruta (PB), 55,22; 55,40 e 52,20% de fibra em detergente neutro (FDN) e 55,60; 53,45 e 57,87% de digestibilidade in vitro da MS, respectivamente. O ensaio foi feito em delineamento em blocos completos casualizados, utilizando-se o peso dos animais como blocos. A digestibilidade aparente da MS das silagens foi 55,96; 55,54 e 57,94%, e de nutrientes digestíveis totais (NDT) de 57,62; 57,49; 57,87%, respectivamente para os tratamentos CiN, CE e CPC. Os resultados indicam que o cártamo conservado como silagem pode ser utilizado na dieta de ruminantes como alternativa a volumosos de qualidade, entretanto os tratamentos utilizados para a ensilagem da biomassa não apresentaram diferenças que justifiquem sua aplicação no que diz respeito às avaliações fisico-químicas, consumo e digestibilidade dos nutrientes das silagens.Palavras-chaves: Carthamus tinctorium L., conservação de forragem, digestibilidade aparente, ovinos. NUTRITIONAL EVALUATION OF SAFFLOWER SILAGE AND BIOMASS, SEED AND OIL PRODUCTIONABSTRACT: The objective of this study was to evaluate the nutritional value of safflower biomass (Carthamus tinctorium L.) ensiled in three treatments. An apparent nutrient digestibility assay was conducted using sheep and the chemical composition and in vitro digestibility of dry matter (DM) were determined in the biomass and silages obtained. The production of DM, seeds and crude oil per hectare safflower crop was also quantified and was 12.4±4.9, 2.9±1.5 and 0.7 ±0.2 t/ha, respectively. The following ensiling treatments were applied: FS = freshly ensiled safflower; WS = wilted safflower (sun exposure for 2 hours); SCP = safflower + 5% citrus pulp. The chemical composition of the FS, WS and SCP silages, respectively, was 10. 8, 11.15 and 10.07% crude protein, 55.22, 55.4 and 52.2% neutral detergent fiber, and 55.6, 53.45 and 57.87% in vitro DM digestibility. A randomized complete block design with animal weight as blocks was used. The apparent DM digestibility of the silages was 55.96, 55.54 and 57.94% and total digestible nutrients were 57.62, 57.49 and 57.87% for FS, WS and SCP, respectively. The results indicate the use of safflower conserved as silage in ruminant diets as an alternative to roughage. However, the biom...

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Características agronômicas de variedades de milho para produção de silagem

Cited by 20 publications

References 6 publications

Agronomic characteristics of corn cultivars for silage production

Agronomic characteristics of corn cultivars for silage production

Prediction of genetic gains and correlations in corn hybrids for silage

Avaliação nutritiva da silagem de cártamo, produção de biomassa, grãos e óleo

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