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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.1976.tde-20240301-150928
Document
Author
Full name
Alessandra Perazzo Barbosa
Institute/School/College
Date of Defense
Published
Piracicaba, 1976
Supervisor
Title in Portuguese
Interação radiação gama-temperatura na determinação da dose esterilizante para algumas pragas de produtos armazenados
Keywords in Portuguese
ESTERILIZAÇÃO
NSETOS NOCIVOS
PRAGAS DE GRÃOS ARMAZENADOS
RADIAÇÃO GAMA
TEMPERATURA
Abstract in Portuguese
Estudou-se a influência da temperatura na dose esterilizante de radiação gama para Sitophilus zeamais Mots. em milho, Sitophilus oryzae (L.) em arroz, Araecerus fasciculatus (DeGeer) em café e Zabrotes subfasciatus (Boh.) em feijão. Verificou-se que a temperatura exerceu marcada influência. Necessitou-se das doses mais elevadas para atingir esterilização na temperatura mais favorável ao desenvolvimento da espécie. Assim, para Sitophilus zeamais Mots. em milho, encontrou-se 8 krad a 24°C. Para Sitophilus oryzae (L.) em arroz a dose foi de 9 krad a 24°C; para Araecerus fasciculatus (DeGeer) em café a dose foi 6 krad a 30°C e para Zabrotes subfasciatus (Boh.) em feijão foi de 9 krad a 24 -27°C. Em outras temperaturas mais baixas ou mais elevadas, a dose encontrada para atingir esterilização foi menor.
Abstract in English
The influence of temperature on sterilizing dosages of gamma radiation was studied for Sitophilus zeamais Mots. in corn, Sitophilus oryzae (L.) in rice, Araecerus fasciculatus (DeGeer) in coffee. and Zabrotes subfasciatus (Boh.) in beans. It was found that temperature has a significant influence on the amount of radiation required to sterilize these species. The highest radiation dosages were required at those temperatures most nearly optimum for insect development. The minimum radiation doses required for complete sterility of each species at the indicated temperatures were as follows: Sitophilus zeamais Mots. in corn, 8 krad at 24°C; Sitophilus oryzae (L.) in rice, 9 krad at 24°C; Araecerus fasciculatus (DeGeer) in coffee, 6 krad at 30°C; Zabrotes subfasciatus (Boh.) in beans, 9 krad at 24 - 27°C. At either higher or lower temperatures smaller radiation dosages were required.
 
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Publishing Date
2024-03-14
 
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