Effect of detasseling on baby corn, green ear and grain yield of two maize hybrids

Moreira, Joserlan Nonato; Silva, Paulo Sérgio L; Silva, Kathia Mb; Dombroski, Jeferson Ld; Castro, Renato Silva de

doi:10.1590/s0102-05362010000400005

Cited by 35 publications

(24 citation statements)

References 15 publications

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“…Prolificacy is an important trait for baby corn cultivation, as more harvest can be achieved per plant, thereby can potentially increase farmers’ income (Moreira, Silva, Silva, Dombroski, & Castro, ). Typically, three types of prolificacy are observed in maize.…”

Section: Discussionmentioning

confidence: 99%

Genetic analysis of prolificacy in “Sikkim Primitive”—A prolific maize (Zea mays) landrace of North‐Eastern Himalaya

et al. 2019

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Prolificacy assumes significance for development of high‐yielding baby corn hybrids. “Sikkim Primitive” is a native landrace of North‐Eastern Himalaya, and is the highest prolific maize germplasm. So far, the genetics of prolificacy in “Sikkim Primitive” has not been deciphered. Here, a prolific inbred (MGU‐SP‐101) developed from “Sikkim Primitive” was crossed with four non‐prolific inbreds viz., LM13, BML7, HKI161 and HKI1128. Six generations (P1, P2, F1, F2, BC1P1 and BC1P2) of the crosses were evaluated at two locations during rainy season 2018. MGU‐SP‐101 possessed 2.50–3.78 ears per plant compared to 1.06–1.86 among non‐prolific inbreds. The variation for ears was the highest in F2s (1–8), followed by BC1P1 (1–7) and BC1P2 (1–5). The quantitative inheritance pattern of prolificacy with prevalence of non‐allelic interactions of duplicate epistasis type has been observed. Dominance × dominance effect was predominant over additive × additive and additive × dominance effects. Total number of major gene blocks ranged from 0.41 to 2.86, thereby suggesting the involvement of at least one major gene/QTL governing the prolificacy. This is the first report of genetic dissection of prolificacy in “Sikkim Primitive”.

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Section: Discussionmentioning

confidence: 99%

Genetic analysis of prolificacy in “Sikkim Primitive”—A prolific maize (Zea mays) landrace of North‐Eastern Himalaya

et al. 2019

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“…At the R3 stage of corn, all the ears of the useful area of the plot were harvested and evaluated for total and marketable yield of unkusked ears.Unhusked ears are considered to be marketable when their length exceeds 0.15 m, according to Moreira et al (2010), and their average diameter is 0.04 m, and they are ripe and free from injuries caused by insect pests and diseases. Data were subjected to analysis of variance and the means were compared by the Scott-Knott test at 5% probability.…”

Section: Methodsmentioning

confidence: 99%

Population density and weed infestation in organic no-tillage corn cropping system under different soil covers

et al. 2014

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-Currently, one of the biggest challenges faced by organic no-tillage farming is weed control. Thus, the use of cropping practices that help in the control of weeds is extremely important. The objective of this study was to evaluate population density and level of weed infestation in an organic no-tillage corn cropping system under different soil covers. The experiment was conducted in a randomized block design with six repetitions and five treatments, consisting of three soil covers in an organic no-tillage system, and an organic and a conventional system, both without soil cover. The treatments with soil cover used a grass species represented by the black oat, a leguminous species represented by the white lupine, and intercropping between both species. Corn was sown with spacing of 1.0 m between rows and 0.20 m between plants, using the commercial hybrid AG 1051. Infestation in corn was evaluated at stages V5 and V10, and weed density was evaluated at stage V5. The use of black oat straw alone or intercropped with white lupine, in the organic no-tillage corn cropping system, reduced the percentage of weed infestation and absolute weed density. Managementintensive systems and systems without soil cover showed higher relative densities for species Oxalis spp., Galinsoga quadriradiata and Stachys arvensis. The species Cyperus rotundus showed the highest relative density on organic no-tillage corn cropping systems. Black oat straw in the organic no-tillage cropping system limited the productive potential of corn. Keywords

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“…Potassium fertilization increases thousand grains weight in maize [20]. Detasseling can increases the grains weight because it reduces the antagonism for leaf made materials and nutrients between male and female parts [15]. Grain yield (kg ha -1 ) Grain yield (kg ha -1 ) was significantly affected by detasseling, potassium levels and interaction of detasseling and potassium.…”

Section: -Grains Weight (G)mentioning

confidence: 99%

“…The highest soil potassium content values occur when the nitrogen fertilizer does not apply. Detasseling significantly increased the ear total number and ear total weight and contributed more to final grain yield [15]. Soil and climatic conditions of Pakistan are suitable for maize growing, however optimum fertilizers and management practices are pre-requisite for its production.…”

Section: Introductionmentioning

confidence: 99%

Yield and yield attributes of maize (Zea mays L.) as affected by detasseling and potassium fertilization

Ullah¹

2017

PAB

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Maize yield is low due to inadequate use of fertilizers and management practices in Pakistan. A field trial was carried out on potassium application and detassleing at Agronomy Research Farm, The University of Agriculture Peshawar, in 2015. The objectives were to find out the effect of six potassium levels (0, 25, 50, 75, 100 and 125 kg ha -1 ) and three detasseling stages (Tassel not removed, Detasseling at complete pollen shedding stage and Detasseling at complete post dried silking stage) on maize yielding attributes. The research was designed through randomized complete block design RCBD with split plot arrangements replicated four times. Detasseling at complete pollen shedding stage produced significantly higher 1000 grains weight (242 g), grain yield (3850 kg ha -1 ) and biological yield (10672 kg ha -1 ). Potassium fertilization at the rate of 75 kg ha -1 produce higher number of ears m -2 (6.60), number of grains ear -1 (325), 1000 grains weight (250 g), grain yield (4101 kg ha -1 ) and biological yield (11207 kg ha -1 ). The interactive effect of detasseling and potassium were found significant only for grain yield. According to the result detasseling at complete pollen shedding stage and potassium at 75 kg ha -1 were best than others in relations to yield and yield attributes of maize.

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Effect of detasseling on baby corn, green ear and grain yield of two maize hybrids

Cited by 35 publications

References 15 publications

Genetic analysis of prolificacy in “Sikkim Primitive”—A prolific maize (Zea mays) landrace of North‐Eastern Himalaya

Genetic analysis of prolificacy in “Sikkim Primitive”—A prolific maize (Zea mays) landrace of North‐Eastern Himalaya

Population density and weed infestation in organic no-tillage corn cropping system under different soil covers

Yield and yield attributes of maize (Zea mays L.) as affected by detasseling and potassium fertilization

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