Vegetative and Reproductive Morphology

Matsuo, Éder; Ferreira, Silvana da Costa; Borém, Aluízio; Sediyama, Tuneo

doi:10.1007/978-3-319-57433-2_4

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…This is due to the genetic characteristic of this material, as well as its higher degree of relative maturity compared to the others. The average height of the plants, the height of insertion of the first pod and the architecture of the soybean plants are characteristics, genetically defined, which can be influenced by several factors, such as sowing time, spacing, population density, supply of water, air temperature and soil fertility (VAZQUEZ et al, 2008;ROCHA et al, 2012;MATSUO et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

teste

2023

Anais ENEPE 2014

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Although several studies have demonstrated that biological nitrogen fixation can provide the nitrogen required by soybean, doubts regarding the need for nutrient application at sowing, specifically "starter N," in early soybean cultivars persist, particularly in high-yielding crop fields.Thus, this study aimed to evaluate the effect of starter nitrogen fertilization on soybean cultivars with different maturity cycles. The experiment was conducted at Fazenda Recanto, in Carmo do Rio Claro, Minas Gerais state, during two crop seasons (2016/2017 and 2017/2018), using a randomized complete block design with split-plot arrangement and four replications. In the 2016/17 cropping season, the plots were comprised of three soybean cultivars (M6410 IPRO, NS7300 IPRO, and TEC7849 IPRO). In the 2017/18 cropping season, the plots consisted of four cultivars (M5917 IPRO, M6410 IPRO, AS3680 IPRO, and NS7670 RR). The subplots were assigned four nitrogen doses at sowing (0, 10, 20, 40 kg ha -1 ). Grain yield, number of nodules per plant, mass of dry nodules per plant, number of grains and pods per plant, plant height and insertion of the first legume were evaluated. Experimental data were subjected to analysis of variance, and means were compared using the Scott-Knott test at 5% probability. The nitrogen rates at sowing did not influence soybean yields and agronomic characters of cultivars evaluated in the cropping 2016/17 and 2017/18. Increasing doses of nitrogen inhibited soybean nodulation.

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Section: Resultsmentioning

confidence: 99%

teste

2023

Anais ENEPE 2014

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Anatomy of the main stem of soybean plants submitted to the removal of the stem apical meristem

Véras

Matsuo²,

Dias-Pereira³

et al. 2021

ASB J.

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Some plant species allow the cutting of the apical meristem in order to assist activities of genetic improvement programs, among them is the soybean. The objective was to verify if the removal of the apical meristem of soybean plants induces any alteration in the stem anatomy, since it was verified that the removal of the apical meristem reduces the need for tutoring of the plants cultivated under greenhouse conditions. The experiment was conducted with plants of the BRSMG 752S cultivar and the treatments consisted of sections of the hypocotyl region of plants that had undergone apical meristem removal at the V2 development stage and of plants without apical meristem removal. The permanent slides were processed following the usual methodologies in plant anatomy. Descriptions and measurements of anatomical tissues were made for comparison between treatments. Plants with removal presented epidermis as a covering tissue until 20 days after the V2 development stage, while plants without removal of the apical meristem presented it until 30 days after V2. Periderm was observed only in plants with removal, and this feature was not evident in plants without removal until 30 days after V2. There was formation of secondary vascular tissues in the collections 30 days after removal (V2 stage). Thus, we conclude that the removal of the apical meristem accelerates the secondary development in hypocotyls of soybean plants grown under greenhouse conditions.

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Vegetative and Reproductive Morphology

Cited by 2 publications

References 8 publications

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Anatomy of the main stem of soybean plants submitted to the removal of the stem apical meristem

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