2002
DOI: 10.1590/s0100-41582002000300005
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Efeito da interação temperatura-tensão de água sobre a germinação de microescleródios de Macrophomina phaseolina

Abstract: Em regiões tropicais e de temperaturas elevadas, Macrophomina phaseolina é agente de podridão em raízes, caule, ramos, e frutos em mais de 500 espécies de plantas cultivadas.Entretanto, pouco se sabe acerca da influência da temperatura e da umidade sobre a germinação dos microescleródios desse fungo. O objetivo deste trabalho foi estudar o efeito da interação temperatura-tensão de água na areia sobre a germinação dos microescleródios do fungo. Os trabalhos foram conduzidos em condições de laboratório, tendo si… Show more

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Cited by 6 publications
(4 citation statements)
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“…The above results corroborate with the findings of Sharma and Pande (2013), where the optimum temperature and SMC for DRR incidence in chickpea were found to be 35 • C and 60%, respectively. Viana and Souza (2002) also reported 35 • C to be the ideal temperature for growth and multiplication of M. phaseolina. Conserving the soil moisture reduced the M. phaseolina population in the soil, thereby reducing DRR incidence in cluster bean (Lodha, 1996).…”
Section: Discussionmentioning
confidence: 93%
“…The above results corroborate with the findings of Sharma and Pande (2013), where the optimum temperature and SMC for DRR incidence in chickpea were found to be 35 • C and 60%, respectively. Viana and Souza (2002) also reported 35 • C to be the ideal temperature for growth and multiplication of M. phaseolina. Conserving the soil moisture reduced the M. phaseolina population in the soil, thereby reducing DRR incidence in cluster bean (Lodha, 1996).…”
Section: Discussionmentioning
confidence: 93%
“…Temperature has been considered as critical aspect of microsclerotia germination of M. phaseolina. Our results are similar to those reported by Viana and de Souza (2002), who observed a percentage of microsclerotia germination larger at incubation temperatures of 27, 30, 33 and 36°C than at 24°C. Use of solutions is easier than use of soils for evaluating effect of water tension on micro-organism, but the component matric potential is not taken into account.…”
Section: Bsupporting
confidence: 93%
“…Rather than evaluating microsclerotia germination (Souza 2002, Pratt 2006, we monitored fungal growth initiated by germinated microsclerotia. Highly significant correlation between the two methods to monitor fungus growth indicates that they are measuring it with the same accuracy.…”
Section: Bmentioning
confidence: 99%
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