1997
DOI: 10.1590/s0006-87051997000100001
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Resposta De Sementes De Milho À Radiação Gama Em Função Do Teor De Água

Abstract: O estudo dos fatores que afetam a eficiência da radiação é importante, pois facilita a obtenção de mutantes que possam servir como fonte de variabilidade em programas de melhoramento e de aberrações cromossômicas estruturais para estudos citogenéticos. O presente trabalho foi realizado com o objetivo de investigar a influência do teor de água na resposta de sementes de milho à radiação gama. Verificou-se, nos experimentos realizados, o efeito radiossensibilizador da água, uma vez que, nas sementes com maior te… Show more

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Cited by 4 publications
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“…The literature has described that gamma radiation applied to seeds of different species is influenced by water level, with responses in germination and vigor (Santos et al, 2010;Garcia et al, 2016). The lower the water content in the seed, the less the radiation effect on germination (Viccini et al 1997). However, high water levels increase metabolic activity and, therefore, intensify the vulnerability of seeds to radiation, since water acts as a means of diffusing physical and chemical mutagens, as well as free radicals from the radiation process (Miranda et al, 2009).…”
Section: Discussionmentioning
confidence: 99%
“…The literature has described that gamma radiation applied to seeds of different species is influenced by water level, with responses in germination and vigor (Santos et al, 2010;Garcia et al, 2016). The lower the water content in the seed, the less the radiation effect on germination (Viccini et al 1997). However, high water levels increase metabolic activity and, therefore, intensify the vulnerability of seeds to radiation, since water acts as a means of diffusing physical and chemical mutagens, as well as free radicals from the radiation process (Miranda et al, 2009).…”
Section: Discussionmentioning
confidence: 99%