Influência de retardante vegetal e densidades de plantas sobre o crescimento, acamamento e produtividade da soja

Linzmeyer, Rodolfo; Guimarães, Vandeir Francisco; Santos, Diego dos; Bencke, Michel Henrique

doi:10.4025/actasciagron.v30i3.3547

Cited by 11 publications

(10 citation statements)

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“…Similar results were found by other authors, who evaluated the effect of trinexapac-ethyl in wheat and barley cultivars in different locations. They concluded that this retardant reduces significantly the length of internodes (Lozano & Leaden, 2001;Matysiak, 2006;Zagonel & Fernandes,2007), and, in soybean, it reduces the plant's height (Linzmeyer Júnior et al, 2008).…”

Section: Medium Squarementioning

confidence: 99%

Growth retardant and nitrogen levels in wheat agronomic characteristics

Schwerz¹,

Caron²,

Schmidt³

et al. 2015

Científica

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Facing the use of high rates of nitrogen (N) fertilizer in wheat crop, the importance of the use of plant growth regulators is observed, and it has become important technology to improve the production efficiency of various species of plants. Thus, we aimed at evaluating the effect of N fertilization, with Sulfammo ® , and the use of growth reducer on the agronomic traits of wheat cultivars. The work was conducted in the experimental area of the Federal University of Santa Maria, Frederico Westphalen campus, in the period from 06 June to 20 October 2012. The soil in the area is classified as dystrophic Red Latosol and the experimental design was a randomized complete block in a 3x5x2 factorial, with three cultivars (TBIO Mestre, TBIO Iguaçú e TBIO Itaipú), five rates of N (0, 40, 80, 120 and 160 kg ha-1) and application or not of growth reducer (trinexapac-ethyl) at a dose of 100 g ha-1 , with three replications. The growth reducer reduces the length of the second and third internode to the TBIO Itaipú and TBIO Iguaçu, the total biomass of the plant, increases thousand grain weight and increases the number of spikelets per spike in TBIO Itaipú. Increasing the rates of N as Sulfammo® allows increasing the length of the first, second and third internodes, culm length, ear length and mass of the spike.

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Section: Medium Squarementioning

confidence: 99%

Growth retardant and nitrogen levels in wheat agronomic characteristics

Schwerz¹,

Caron²,

Schmidt³

et al. 2015

Científica

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show abstract

“…Plants treated with these substances can present characteristics of agronomic interest different from those not treated, which can benefit some cultivation traits. Trinexapac-ethyl doses did not interfere in the components of soybean yield, but altered the plant stature and stem diameter [74]. Nonetheless, other authors who applied the same regulator found a reduction of 12% in the yield [75].…”

Section: Crop Managements and Their Impacts On Architecture Modificationmentioning

confidence: 99%

Soybean Architecture Plants: From Solar Radiation Interception to Crop Protection

Chavarria¹,

Caverzan²,

Müller³

et al. 2017

Soybean - The Basis of Yield, Biomass and Productivity

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The soybean plant architecture in relation to better solar radiation interception and production gain is an aspect that requires a better understanding, since soybean is an important crop worldwide. The genetic traits, management and environmental conditions are points that further extend the range of issues on crop productivity. The light quality is measured by the red/far-red (R/FR) ratio (R ∼ 660 nm, FR ∼ 730 nm). This affects the plant growth and morphological developments in different ways. The plant leaves change their angle during the day to better intercept radiation. This heliotropic movement and some computational models together have been used to enhance some agricultural practices. Soybean plant is dependent on the interaction between genotype and environment. Thus, the enhanced understanding in relation to photosynthetic activity, grain yield by light interception efficiency and culture protection managements in soybean are covered.

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“…Soybean is a crop that currently occupies a commercially relevant role in the quality of one of the main commodities of the world agribusiness, since, in addition to making it possible to extract oils, it represents an excellent source of protein that, in turn, can be used both in human food and as a meal for animal feed (Fischer, Maier, Rutz, & Bermudez, 2002;Paulino, Moraes, Zervoudaki, Alexandrino, & Figueiredo, 2006;Linzmeyer Junior, Guimarães, Santos, & Bencke, 2008).…”

Section: Introductionmentioning

confidence: 99%

Doses and Times of Trinexapac-ethyl Application in Soybean Development and Yield

Sales¹,

Lazarini²,

Sanches³

et al. 2019

JAS

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The intense vegetative growth is one of the problems faced by soybean producers, causing the lodging, making difficult and damaging the harvest and, even, the efficiency of the application of agricultural defenses. The use of growth regulators is an important tool in the management of growth, in addition, it can favor the transport of photoassimilates for grain filling. Therefore, the objective was to evaluate the best dose and time of trinexapac-ethyl application in the development and yield of soybean varieties. The experiment was conducted in the Selvíria County, Brazil (20°20′53″ S, 51°24′02″ W). The experimental design was used in randomized blocks with treatments arranged in a factorial scheme 5 x 3 (doses x times), with four replications. The varieties used were the BRS Valiosa RR and the BMX Potência RR, the doses of the growth regulator were 0; 50; 100; 200 and 400 g ha-1 of trinexapac-ethyl (Moddus®) and the application times were at the phenological stages V7, V10 and R2. The varieties BRS Valiosa and BMX Potência, respectively, were obtained at the phenological stage V10, with application of 200 g ha-1 of trinexapac-ethyl, greater dry matter accumulation of leaves and pods. Nevertheless, the same did not act on the foliar area of the BRS Valiosa RR variety in the same way that it did not induce changes in the production components of the BMX Potência RR variety. Regardless of the application period (V7, V10 and R2) and the dose (up to 400 g ha-1), the application of trinexapac-ethyl was not a management capable of influencing the agronomic characteristics and the lodging of the plants in both varieties.

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Influência de retardante vegetal e densidades de plantas sobre o crescimento, acamamento e produtividade da soja

Cited by 11 publications

References 0 publications

Growth retardant and nitrogen levels in wheat agronomic characteristics

Growth retardant and nitrogen levels in wheat agronomic characteristics

Soybean Architecture Plants: From Solar Radiation Interception to Crop Protection

Doses and Times of Trinexapac-ethyl Application in Soybean Development and Yield

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