Armazenamento de sementes de soja produzidas mediante a associação de fungicidas, fosfitos e indutor de defesa sobre a qualidade de sementes
The use of high quality seeds is a decisive factor for an adequate initial establishment of the crop, generating plants with high productive potential. The objective of this work was to evaluate the effect of foliar application of fertilizers containing phosphites and their combination with fungicid...
| Autor principal: | Tartas, Pamela Leticia |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Agronomia
2022
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/29626 |
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| Resumo: |
The use of high quality seeds is a decisive factor for an adequate initial establishment of the crop, generating plants with high productive potential. The objective of this work was to evaluate the effect of foliar application of fertilizers containing phosphites and their combination with fungicides and plant activator on the quality of soybean seeds generated and stored under different periods. The experiment was carried out at UTFPR, Câmpus Dois Vizinhos, in the 2017/2018 harvest. The products used were applied to the aerial part of the soybean cultivar NA 5909 RG: these fertilizers containing phosphites - Ultra Mn 10® (Manganese Phosphite), Ultra K 10® (Potassium Phosphate) and Cube 700® (Copper Phosphite and Boron); the fungicides tested were Elatus® (Azoxystrobin and Benzovindiflupir) and Priori Xtra® (ciproconazole + azoxystrobin). The plant activator used was Bion® (acibenzolar-S-methyl). These were applied at the beginning of the reproductive phase of the culture. After the harvest, the seeds were sent to the University's seed laboratory and submitted to the following tests: weight of one thousand seeds, water content, germination, seedling length and field emergence. After the analyzes immediately after the harvest, the seeds were stored in laboratory environment conditions and reanalyzed every two months for a period of eight months. The experimental design was completely randomized, with eight replications. The data were submitted to the normality test (Lilliefors) and homogeneity of the variance (Bartllet). The variables G and EC were transformed into arc sin vx and were submitted to Anova. If there was interaction of the factors, a regression analysis was performed. The use of potassium phosphite and the Bion plant inducer in association with the fungicides Aproach Prima and Elatus performed positively on the physiological quality of the seeds during storage in the natural environment, and the best storage period was from TO to T4. |
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