Aplicação de zinco via sementes e seu efeito na germinação, nutrição e desenvolvimento inicial do sorgo

Yagi, Renato; Simili, Flávia Fernanda; Araújo, João Carlos de; Prado, Renato de Mello; Sanchez, Sergio Veraguas; Ribeiro, Carlos Eduardo Rodrigues; Barretto, Vitor Corrêa de Mattos

doi:10.1590/s0100-204x2006000400016

Cited by 28 publications

(24 citation statements)

References 9 publications

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“…A similar result was found by Pessoa et al (2000), who observed an increase of heterogeneity and a delay in germination, and still a low initial development of plants when tested increasing doses of B in corn seeds. Yagi et al (2006) also verified that the application of zinc sulfate in sorghum seeds in a dose of 28.56 g.kg of seeds resulted in a minor percentage of germination. However, Tavares et al (2013) and Pletsch et al (2014) using in the recoating of seeds doses of commercial products that possessed 780 g.L -¹ of Zn in wheat seeds and 780 g.L -¹ of Zn in canola seeds, respectively, observed that the treatments provided benefits for the germination and initial establishment of plants.…”

Section: Resultssupporting

confidence: 55%

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Perennial soybean seeds coated with high doses of boron and zinc

Justino¹,

Vieira²,

Freitas³

2016

Afr. J. Biotechnol.

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The objective of this work was to study combinations of high doses of boron (B) and zinc (Zn) in the recoating of perennial soybean seeds, in order to provide these nutrients to the future plants. The physical, physiological and nutritional characteristics of the coated seeds and initial development of plants in a greenhouse were evaluated. Tests carried out in the laboratory were conducted in a completely randomized design, and the experiments completed in a greenhouse were a randomized block design. The coating with the dose 0.8 kg of H 3 BO 3 + 0.8 kg of ZnSO 4. kg-¹ of seeds provides the best quality coating. The combination of B and Zn in seed coating reduces the production of shoot dry matter, while the other treatments do not affect the growth variables of the plants. Plants absorb and accumulate the micronutrients added to the coating of the seeds.

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Section: Resultssupporting

confidence: 55%

“…Meanwhile Yagi et al (2006) and Prado et al (2008) tested in sorghum seeds doses of zinc sulfate of 114.4 and of 28.56 g of Zn. kg -1 of seeds, respectively, and observed a significant decrease on the production of root dry mass.…”

Section: Resultsmentioning

confidence: 99%

Perennial soybean seeds coated with high doses of boron and zinc

Justino¹,

Vieira²,

Freitas³

2016

Afr. J. Biotechnol.

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“…Funguetto et al (2010) analyzed coating rice seeds with zinc, fungicide and a polymer and they also did not observe any changes in germination. However, Yagi et al (2006) noted a reduction in the percentage germination of sorghum seeds treated with zinc. Results from the accelerated aging test demonstrated that seeds treated both with product "A" and product "B" showed no significant difference when exposed to conditions of high temperature and relative humidity.…”

Section: Resultsmentioning

confidence: 96%

Physiological performance of wheat seeds coated with micronutrients

et al. 2013

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-The objective of this study was to evaluate the physiological performance of wheat seeds coated with micronutrients. The treatments were combinations of two products based on micronutrients, product "A": 780.0 g.L -1 of zinc and product "B": 182.4, 7.6 and 45.6 g.L -1 of zinc, boron and molybdenum, respectively, with five dosages of the products: 0, 1, 2, 3 and 4 mL. kg -1 seed, totaling 10 treatments with four replications. Physiological quality of the treated seed was evaluated from germination and vigor tests and the early plant growth from determinations of shoot dry weight, plant height and leaf area at 10, 20 and 30 days after emergence (DAE), as well as the rate of crop growth, relative and net assimilation. Seed yield and physiological quality were determined after harvest. It was concluded that coating wheat seeds with the product "A" , based on zinc and "B", consisting of zinc, boron and molybdenum, respectively, up to a dosage of 4 mL.kg -1 seed, did not adversely affect the physiological quality of the treated seeds or those produced. Both products tested resulted in increases in leaf area, plant height and shoot dry weight up to 30 DAE, as well as a higher seed yield.Index terms: Triticum aestivum L., early growth, physiological quality, yield.Desempenho fisiológico de sementes de trigo recobertas com micronutrientes RESUMO -Objetivou-se avaliar neste trabalho o desempenho fisiológico de sementes de trigo recobertas com micronutrientes. Os tratamentos consistiram da combinação de dois produtos a base de micronutrientes, produto "A": 780.0 g.L -1 de zinco e o produto "B": 182,4; 7,6 e 45,6 g.L -1 de zinco, boro e molibdênio, respectivamente, e cinco doses dos produtos: 0, 1, 2, 3 e 4 mL.kg -1 de semente, totalizando 10 tratamentos, com quatro repetições. A qualidade fisiológica das sementes tratadas foi avaliada por testes de germinação e vigor e o crescimento inicial das plantas foi avaliado pela massa seca da parte aérea, altura de planta e área foliar aos 10, 20 e 30 dias, após a emergência (DAE), além da taxa de crescimento da cultura, relativo e assimilatória líquida. Após a colheita avaliaram-se o rendimento e a qualidade fisiológica das sementes. Conclui-se que o recobrimento de sementes de trigo com o produto "A" (zinco) e "B" (zinco, boro e molibdênio), até a dose de 4 mL.kg -1 de semente, não prejudicam a qualidade fisiológica das sementes tratadas e produzidas. Os produtos testados promovem maior área foliar, altura de planta e massa seca da parte aérea até os 30 DAE, bem como proporcionaram maior rendimento de sementes.Termos para indexação: Triticum aestivum L., crescimento inicial, qualidade fisiológica, rendimento de sementes.

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“…Da mesma forma o recobrimento de sementes de arroz irrigado com zinco não promoveu acréscimos na germinação e no vigor das sementes (OHSE et al, 2000). No entanto, em trabalho com sementes de sorgo tratadas com zinco (0,3,57,7,14,14,28 e 28,56 g de zinco por kg de sementes) tendo como fonte sulfato de zinco heptahidratado, foi constatado redução da percentagem de germinação com o aumento das doses (YAGI et al, 2006).…”

Section: Resultsunclassified

“…O Zn é requerido em pequenas quantidades, apresentando uma estreita faixa entre o efeito benéfico e a toxicidade (MALAVOLTA, 2006), explicando a redução na germinação a partir da dose de máxima eficiência. Tais resultados concordam com os encontrado por Yagi et al (2006) enéfico e a toxicidade (MALAVOLTA, 2006) A máxima área foliar (17,58 cm² planta…”

Section: Resultsunclassified