Produtividade e qualidade do milho doce em diferentes populações de plantas

Souza, Renan Soares de; Filho, Pedro Soares Vidigal; Scapim, Carlos Alberto; Marques, Odair José; Queiroz, Dyane Coelho; Okumura, Ricardo Shigueru; Reche, Deivid Lincoln; Cortinove, Vinícius Bovo

doi:10.5433/1679-0359.2013v34n3p995

Cited by 12 publications

(10 citation statements)

References 20 publications

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“…There was good control of the conditions applied to the present study due to the low experimental variation coefficients herein observed. EY recorded the highest VCe, fact that was already expected due to the polygenic nature of such trait; this result was corroborated by other studies (Oliveira Jr. et al 2006;Souza et al 2013;Oliboni et al 2013).…”

Section: Discussionsupporting

confidence: 87%

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Development and selection of super-sweet corn genotypes (sh2) through multivariate approaches

et al. 2018

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The aim of the present study was to investigate relations among ten traits in super-sweet corn genotypes assessed by means of simple correlation, path and canonical variable analyses, as well as to investigate the relative importance of such traits to the supersweet corn breeding program developed at Darcy Ribeiro Northern Fluminense State University in order to develop strategies able to improve the efficiency in the selection of superior genotypes. Thus, trials comprising 3 × 6 partial diallel of super-sweet (sh2) corn were carried out, according to a randomized block design (RBD) with four repetitions, in two different environments located in Northern Rio de Janeiro State, Brazil (Itaocara and Campos dos Goytacazes counties). The correlation study showed that traits

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Section: Discussionsupporting

confidence: 87%

“…The mean EY estimate was higher than that found by Souza et al (2013), Oliboni et al (2013), and Oliveira Jr. et al (2006). This information is very important because it allows highlighting the potential of the tested genotypes and makes it possible using them in the final tests of the breeding program in question.…”

Section: Discussionmentioning

confidence: 70%

Development and selection of super-sweet corn genotypes (sh2) through multivariate approaches

et al. 2018

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“…Valor superior de CV% para produtividade de espigas comerciais (PEC) foi observado por Souza et al (2013), avaliando os componentes da produção e a composição de grãos de híbridos de milho-doce, com valor de 18%.…”

Section: Resultsunclassified

Desempenho de híbridos de milho para consumo in natura em diferentes doses de nitrogênio

Costa¹,

Damaso²,

Mendes³

et al. 2015

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ResumoO Brasil é um grande produtor de milho, entretanto, com relação ao milho-verde, o volume de sementes comercializadas para esta finalidade é baixo, e, em alguns casos, o produtor utiliza sementes destinadas a grão e com doses inferiores de nitrogênio, por apresentar um período mais curto até à colheita. Dessa forma, o objetivo do trabalho foi avaliar o desempenho de dois híbridos de milho, destinados a grão, colhidos verdes e comparados a um híbrido destinado a este mercado, em diferentes doses de nitrogênio. O experimento foi realizado durante a safra de 2011/2012, utilizando delineamento experimental de blocos casualizados, em esquema fatorial 3 x 5 (três híbridos de milho em cinco doses de nitrogênio), com três repetições. Foram utilizados os híbridos DKB175, P30F53Y e o AG1051 (controle), sob as doses de 0; 40; 80; 120 e 160 kg ha -1 de N, sendo analisadas as características agronômicas de altura da planta, produtividade de espigas empalhadas, despalhadas e comerciais, comprimento e diâmetro de espigas comerciais, no estádio de R3 (grão leitoso). Os dados obtidos foram submetidos à análise de variância e regressão, e os resultados mostram que o híbrido P30F53Y apresenta melhor desempenho, quando comparado ao DKB175, e semelhante ao controle. A dose a ser utilizada pelo produtor está relacionada com a forma de comercialização das espigas, visando ao consumo in natura. A produtividade máxima de espigas empalhadas e comerciais é obtida nas doses de 143 e 160 kg ha -1 de N para o híbrido P30F53Y, e 93 e 99 kg ha -1 para o híbrido DKB175. Palavras-chave adicionais: espigas comerciais; espigas empalhadas; milho-verde; Zea mays L. AbstractBrazil is a great corn producer but vegetable corn production is still very low. Seed production specifically for vegetable corn is very low so that frequently the producers make use of grain seeds to plant their fields, making use of lower nitrogen doses since the plant cycle will be shortened. The objective of this study was to evaluate the performance of two grain corn hybrids in comparison with that of a vegetable corn hybrid. The experiment took place during the crop year of 2011/12 in a randomized complete block design in a 3 x 5 factorial scheme (three corn hybrids and five nitrogen doses) with three replications. The hybrids DKB175, P30F53Y, and AG1051 (check treatment) were grown under the doses of 0, 40, 80, 120, and 160 kg ha -1 of N. The agronomic characteristics plant height, yield of unhusked, husked, and marketable ears, length and diameter of marketable ears at stage R3 (milky stage) were evaluated. The data were submitted to the variance and regression analyses. The results show that the hybrid P30F53Y had the best performance in comparison to DKB175 and a similar performance in comparison with the check treatment. The dose to be used by the producer depends on the way the ears will be commercialized, having in mind the in natura consumption. The maximum yield of husked and commercial ears results from the doses of 143 and 160 kg ha -1 of N for the hybrid P30...

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“…Expressive sugar accumulation in the kernels is blocked by the sugar conversion into starch in the endosperm, specifically in the super sweet genotype group (sh2) (Tracy 2010). The small presence of the ADP-glucose pyrophosphorylase enzyme in the endosperm catalyzes the reaction between glycose-1-phosphate and adenosine triphosphate and drastically reduces the starch synthesis (Tracy 2001;Souza et al 2013). The PROT in the sweet corn kernels was described (p < 0.05) by the quadratic model for the inoculant main factor (Fig.…”

Section: Sourcementioning

confidence: 99%

Agronomic performance and sweet corn quality as a function of inoculant doses (Azospirillum brasilense) and nitrogen fertilization management in summer harvest

et al. 2019

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The inoculation of sweet corn seeds with Azospirillum brasilense in association to nitrogen fertilizer may be an agronomic alternative for increasing the crop yield and net income of plant growers. Therefore, the aim of this study was to investigate the effect of the different doses of inoculant (Azospirillum brasilense) associated to the nitrogen fertilization management on the phenotypic traits of one sweet corn hybrid in summer growing periods, under supplemental irrigation, in the Northwestern Paraná state, Brazil. The experiment followed the complete randomized block design with four replications. The treatments were: i) five inoculant doses (0.0, 50, 100, 150 and 200 mL•ha-1) containing Azospirillum brasilense; ii) two N doses (0.0 and

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Produtividade e qualidade do milho doce em diferentes populações de plantas

Cited by 12 publications

References 20 publications

Development and selection of super-sweet corn genotypes (sh2) through multivariate approaches

Development and selection of super-sweet corn genotypes (sh2) through multivariate approaches

Desempenho de híbridos de milho para consumo in natura em diferentes doses de nitrogênio

Agronomic performance and sweet corn quality as a function of inoculant doses (Azospirillum brasilense) and nitrogen fertilization management in summer harvest

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