Baby corn, green ear, and grain yield of corn cultivars

Abstract

Most maize cultivars have been developed for grain production. Because superior cultivars may differ in their exploiting purposes, interest has been demonstrated for the evaluation of corn cultivars with regard to their baby corn, green ear, and grain yields production ability. In the present work ten corn cultivars (AG 405, AG 1051, AG 2060, AG 6690, AG 7575, AG 8080, DKB 333 B, DKB 435, DKB 350 and DKB 747) were evaluated in the yield of baby corn, green ears and dry grains. Two experiments were carried out in the same season, in neighboring areas and managed in a similar way, in Mossoró, Rio Grande do Norte State, Brazil, in a randomized blocks design with five replicates. Baby corn yield (178,571 plants ha-1) was evaluated in one of the experiments. The other experiment (50,000 plants ha-1) was set to evaluate green ear and dry grain yield. Cultivars DKB 350 and AG 8080 were the most productive in number and weight of marketable unhusked, and husked baby corn ears. Cultivars DKB 435 and AG 8080 were the most productive in number and weight of marketable, unhusked, and husked ears. There were no differences between cultivars for grain yield.

Mineral composition and growth of babycorn under swine wastewater combined with chemical fertilization

“…Sá et al (2002) obtained values around 3.18 and 3.63 m 2 for LAI in analysis to morphological and physiological aspects of modern and old cultivars of corn, approaching to the maximum values of this study (3.41 to 4.55 m 2 m -2 ). Almeida et al (2005) for a population of 178,570 plants obtained the number of leaves ranging from 8 to 14 per plant, and also above the values of Meneghetti et al (2008a,b), evaluating water irrigation in babycorn, obtaining values between 12.32 and 12.85 leaves per plant. Figure 4 shows the leaf area index and absolute growth rate of babycorn in the treatments with ARS levels in combination with AD for periods of 19 days after sowing and 11 and 12 days of observation, and coefficients of determination (R 2 ) 0.79 and 0.49 (y= 0,0118 e 0.0055x ) for 12 days, and 0, 40 (y= 0,0099e 0.0034x ), for 11 days, indicating good and low relationship between the variables, respectively.…”

“…The occurrence of significant effects of the AD x ARS interaction for plant height at 30 DAS and leaf area at 19 DAS (days after sowing) was observed. Almeida et al (2005) had baby corn plant heights ranging from 1.53 to 1.91 m. The average taken in the last period of this study was 1.16 m (Table 5), which may have occurred due to during this period there was little or no rainfall, totaling 249.4 mm and the average temperature was around 30 °C. Certainly they were not enough to meet the crop needs, which can be grown in areas with rainfall from 300 to 5.000 mm per year, and the amount of water consumed during the cycle is around 600 ).…”

Produtividade do minimilho em função das adubações nitrogenada e potássica

“…Entretanto, o incremento nessa variável verificado no presente estudo é satisfatório, uma vez que maiores diâmetros permitem plantas menos suscetíveis ao acamamento ou quebramento, bem como à ocorrência de doenças, especialmente as podridões de colmo (Pereira Filho & Cruz, 2000), fatos esses observados na produção de minimilho, na qual se utilizam altas densidades de plantas (Almeida et al, 2005).…”

Índice de seleção para cultivares de milho com dupla aptidão: minimilho e milho verde

“…Em ambos os experimentos os tratos culturais referentes à adubação e aos controles de pragas e plantas daninhas foram realizados conforme Almeida et al, 2005. Os dados obtidos foram submetidos à análise de variância utilizando-se o seguinte modelo: Y ij = μ + g i + r j + ε ij, em que, Y ij é observação referente ao i-ésimo genótipo na j-ésima repetição; μ a média geral; g i é efeito do i-ésimo genótipo (i = 1, 2,... 10); r j o efeito da j-ésima repetição (j = 1, 2, 3) e ε ij o erro experimental associado à observação Y ij.…”

“…É utilizado na alimentação humana, principalmente nos países asiáticos, in natura ou em conserva. Mostra-se como uma boa alternativa ao pequeno produtor por apresentar boa lucratividade (Almeida et al, 2005) e perspectivas de exportação.…”