Cause and effect relationships, multivariate approach for inoculation of Azospirillum brasilense in corn

Ferreira, Luiz Leonardo; Santos, Gilson Flávio Silvério Dos; Carvalho, Italo Ramon Cavalcantes; Fernandes, Marilaine de Sá; Carnevale, Ariana Bertola; Lopes, Karla Bianca de Almeida; Prado, R. L. F.; Lautenchleger, Francine; Pereira, Alexandre Igor de Azevedo; Curvêlo, Carmen Rosa da Silva

doi:10.26814/cps2020006

Cited by 3 publications

(5 citation statements)

References 25 publications

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“…Regarding SD, AG 9000 showed the higher average only in the first off-season, and not in the second one, whereas among other hybrids there were no differences. Ferreira et al (2020) found no differences in SD between the selected hybrids whether A. brasilense was present or not. Moreover, this parameter did not seem to be influenced by soil cultivation practices or inoculation since it was found no pattern to explain the stem diameter of the hybrids.…”

Section: Effect Of Inoculation On Morphophysiological Traitsmentioning

confidence: 66%

“…Regarding yield parameters, Ferreira et al (2020) observed enhanced productivity of DKB 310 regardless Average followed by the same capital letter in the column (Genotypes) and lowercase letter in the line (NT and FS) do not differ significantly by the Tukey test (P>0.05). (n=5).…”

Section: Effect Of a Brasilense On Corn Yieldmentioning

confidence: 88%

“…The association between DKB 255 and productivity is evident from the PCA (Figure 2A), although 100SW and NT were more strongly associated with AG 9000 in the first off-season. Ferreira et al (2020) found associations between the variables ear diameter with straw (EDS), a thousand-grain mass (TGM), and yield (YI) and the hybrid DKB 310 in the absence of A. brasilense. On the other hand, the authors also found that when hybrids 2B610 and 20A78 were inoculated with this proteobacteria, they were highly associated with the strawless ear diameter (SED) and yield (YI) variables according to the analysis of canonical variables.…”

Section: Effect Of a Brasilense On Corn Yieldmentioning

confidence: 95%

“…The scenario of off-season maize crop -which is made right after the early soybean crop -has changed in recent years: it was quite unrepresentative and had low yields in the 1980s (Ferreira et al, 2020); but it has been surpassing in total production the summer season crop since 2012 (Contini et al, 2019). Moreover, it has become one of the most important crops in terms of productivity and growing area due to advances in agricultural technologies.…”

Section: Introductionmentioning

confidence: 99%

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Does soil cultivation practices and inoculation with Azospirillum brasilense affect the performance of maize genotypes?

Santos,

Aguiar,

Vendruscolo

et al. 2023

Ciênc. agrotec.

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One of the bottlenecks for maize (Zea mays L.) production is the need for a large supply of nitrogen fertilizers, which burdens farmers. A solution to this problem is the use of proteobacteria Azospirillum brasilense as an inoculant. However, experimental results regarding this inoculant vary depending, for instance, on the soil cultivation practices used. The objective of this study was to evaluate the influence of inoculation with Azospirillum brasilense on morphophysiological characters and yield characteristics of three maize genotypes in two off-season cultivated in no-tillage system (NT). Fallow soil (FS) was used as control. The results showed that soil cultivation had a significant effect on morphophysiological and productivity parameters compared to inoculation with Azospirillum brasilense. There were no distinct morphophysiological differences among the treatments. FS (inoculated or not) was more closely related to productivity parameters (grain yield-YI, weight of 100 seeds-100SW, plant height-PH and number of leaves-NL) than NT in both off-seasons. Among the hybrids, Dekalb 255 PRO3 (DKB 255) showed the highest YI and 100SW. Thus, this hybrid was considered well-adapted to off-seasons in western Paraná, Brazil. The inoculation effect was practically null and did not influence the estimated productivity of the different chosen hybrids.

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Section: Effect Of Inoculation On Morphophysiological Traitsmentioning

confidence: 66%

Section: Effect Of a Brasilense On Corn Yieldmentioning

confidence: 88%

Section: Effect Of a Brasilense On Corn Yieldmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Does soil cultivation practices and inoculation with Azospirillum brasilense affect the performance of maize genotypes?

Santos,

Aguiar,

Vendruscolo

et al. 2023

Ciênc. agrotec.

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“…In the same year, both single and intercropped corn, inoculated in both soils, showed higher grain yields of 5,171 and 5,744 kg ha -1 , respectively, than the corn that did not receive any inoculation (Table 2). Lana et al (2012) reported that inoculation with Azospirillum provided increases of up to 14.0% in corn grain yield, even without the addition of N. Plant growthpromoting bacteria, such as A. brasilense, can lead to consistent gains without the need for large investments in N fertilizers (Ferreira et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Azospirillum brasilense in corn grown single and intercropped with Urochloa in two contrasting soils

Oliveira

Ceccon

Capristo

et al. 2022

Pesq. agropec. bras.

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The objective of this work was to evaluate the agronomic performance of corn (Zea mays) grown single and intercropped with Urochloa ruziziensis in succession to soybean (Glycine max) inoculated with Bradyrhizobium japonicum, as well as the inoculation and reinoculation of corn with Azospirillum brasilense, in two contrasting soils. The experiment was carried out in two crop years, in a randomized complete block design, in a 2x2x3 factorial arrangement, with five replicates. The first evalauted factor was composed of the two constrasting soils: a clayey Rhodic Eutrustox and a sandy Rhodic Haplustox. The second factor was corn cultivation: single and intercropped with U. ruziziensis. The third factor consisted of the inoculation onto soybean and corn in succession, as follows: no inoculation in both crops, inoculation with B. japonicum onto soybean and with A. brasilense onto corn, and reinoculation with B. japonicum + A. brasilense onto soybean and with A. brasilense onto corn. In both crop years, the highest corn yields are observed in clayey soil with seeds reinoculated with A. brasilense. The annual reinoculation with A. brasilense results in a higher corn grain yield in the intercropping with U. ruziziensis in the clayey soil. Inoculation and reinoculation reduce corn yield losses caused by the competition with U. ruziziensis in intercropping.

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Espaçamento entre linhas de genótipos de soja: médias, regressões e correlações nos níveis de rendimento

Ferreira¹,

Moreira²,

Carvalho³

et al. 2020

RSD

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Testes de média e análises de correlações (simples, canônicas e trilha) permitem a identificação de caracteres correlacionados com o rendimento de grãos. Devido à pouca disponibilidade de trabalhos que relatam os níveis de correlação de plantas de soja com os espaçamentos entre linhas e por demandas dos produtores rurais, objetivou-se com o trabalho identificar a influência do espaçamento entre linhas de genótipos de soja sobre os níveis de rendimento, através de metodologias estatísticas de teste de média, regressões e correlações. O estudo foi conduzido sob condições de campo na Fazenda Quero-Quero, no município de Chapadão do Céu, Goiás, Brasil. O delineamento experimental foi em blocos ao acaso com 8 tratamentos, correspondentes a 2 genótipos de soja (Desafio e M7739), submetidos a 4 espaçamentos entre linhas (22.5, 45, 67.5 e 90 cm) em 4 repetições. Foram quantificados 8 caracteres para explicar o rendimento de grãos. As análises foram realizadas no programa estatísticos R Core Team. Os caracteres apresentaram interação entre as fontes de variação e significância para com os efeitos principais. Correlações foram descritas nas variáveis canônicas e mensuradas seus efeitos diretos e indiretos. Ao término do trabalho, concluiu-se que o espaçamento entre linhas e o fator genético alteram as médias de rendimento da cultura de soja, e que o rendimento dos genótipos de soja desafio e M7739 está correlacionado com o estande, altura de planta e legumes com dois grãos.

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Cause and effect relationships, multivariate approach for inoculation of Azospirillum brasilense in corn

Cited by 3 publications

References 25 publications

Does soil cultivation practices and inoculation with Azospirillum brasilense affect the performance of maize genotypes?

Does soil cultivation practices and inoculation with Azospirillum brasilense affect the performance of maize genotypes?

Azospirillum brasilense in corn grown single and intercropped with Urochloa in two contrasting soils

Espaçamento entre linhas de genótipos de soja: médias, regressões e correlações nos níveis de rendimento

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