Aferição do teste de germinação das sementes de milho em função do tratamento industrial das sementes

Content Provider	Semantic Scholar
Author	Martins, Aline Neves
Copyright Year	2017
Abstract	Maize seeds germination test depending on the seed industrial treatment The seed industrial treatment is used to approximately 100% of the maize hybrids seeds marketed in Brazil. Thus, it is essential to verify if the application of chemical products in maize seeds interferes in the analysis results of these seeds. Therefore, in this research was compared maize seeds germination of three cultivars classified in circular and oblong screen sieves, depending on the application of chemical products (fungicide, insecticide, nematicide and polymer) in relation to the seeds without chemical treatment (Control). In order to complement the determination of seed quality, seed water content, seedling root mean length, seedling emergence and vigor were evaluated. The analysis were carried out in the Plant Production Department of the Luiz de Queiroz College of Agriculture, University of São Paulo. The water content was determined by the oven method at 105 ± 3 °C for 24 hours. In the germination test, the paper substrate (RP), four replicates of 50 seeds or eight replicates of 25 seeds were used and the evaluations between the 3rd and the 7th day after of the test installation. The treatments with fungicide, insecticide and nematicide did not interfere in the water content of the maize seeds, independently of the genotype and the seeds shape. The results of the maize seeds germination test were statistically analyzed and using the Tolerance Tables of the Rules for Seed Testing and it is possible to verify that the seed industrial treatment does not interfere in the results of the germination test, as proposed in the current Rules for Seed Testing. In the germination test, it is possible to evaluate the maize seeds germination on the 3rd day after the test installation, in order to anticipate the results. The placement of 25 maize seeds on the paper substrate (RP) favors the evaluation of the seedling development in the germination test, compared to the use of 50 seeds.
File Format	PDF HTM / HTML
DOI	10.11606/D.11.2017.tde-19102017-103850
Alternate Webpage(s)	https://teses.usp.br/teses/disponiveis/11/11136/tde-19102017-103850/publico/Aline_Neves_Martins.pdf
Alternate Webpage(s)	https://doi.org/10.11606/D.11.2017.tde-19102017-103850
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article