Efeitos da temperatura na germinação de sementes de milho biofortificado
DOI:
https://doi.org/10.48017/Diversitas_Journal-v6i3-1902Abstract
ABSTRACT: For good germination, seeds need mainly oxygen, water and adequate temperatures, the latter being the most relevant factor in germination speed. Thus, the main objective of this work was to identify favorable temperatures for the germination of corn seeds (BRS-4104). The work was performed in the Seed Analysis Laboratory of the Assis Gurgacz Foundation University Center, in Cascavel, Paraná State. The experimental design was entirely randomized (DIC). Five temperatures were studied: 15 ºC, 20 ºC, 25 ºC, 30 ºC and 35 ºC, with 8 evaluation periods and 5 repetitions, with 25 seeds in each. The following variables were evaluated: germination velocity index (IVG), mean germination time (TMG), first count (PC) and germination of corn (G). The experiment means were submitted to variance analysis and compared by Tukey test, at 5% probability for all variables, using the ASSISTAT program. It was concluded that the ideal temperature for seed germination of the biofortified corn cultivar (BRS-4104) is between 20 and 35 ºC.
KEYWORDS: Ecophysiology, Seed germination, Zea mays.
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