Study of some bioecological parameters of four Dreschslera isolations that are pathogenic to Sorghum halepense (L) Pers

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F. Morell

Abstract

Weeds are considered the main biotic restriction
for agricultural production, as they constituted the most
striking pest now-a-days; so far, there are 205 economically
important species. Several researchers have reported biological
control (mycoherbicides) as the most economic and safe
method, whenever it is included in an integrated pest
management program. Since biological control is significantly
applied as a weeding method at present, particularly Sorghum
halepense (L) Pers, which is the most economically important
weed in the world, thus a series of trials were conducted to
test the performance of micelial growth and sporulation of
four Dreschslera isolations that are pathogenic to Sorghum
halepense (L) Pers, subjected to different pH values as well as
to appraise their germination in various solvents, besides
performing the pathogenicity test to different agricultural
species. This research work was carried out at the
Phytopathology Laboratory from the Agrarian University of
Havana, for evaluating pH 5, 6, 7, and 8 as well as running,
distilled and sterile distilled waters as solvents. Pathogenicity
test was performed to the following crops: Panicun maximum,
Lycopersicon esculentum, Zea mays, Oryza sativa and
Sorghum halepense (L.) Pers. Results proved that all isolations
studied favorably developed at every pH evaluated, obtaining
significant differences regarding sporulation and germination
in those solvents, besides a notable pathogenicity for S.
halepense but not for the rest, which are important aspects
that should be taken into account to obtain a mycoherbicide.

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How to Cite
Morell, F. (2013). Study of some bioecological parameters of four Dreschslera isolations that are pathogenic to Sorghum halepense (L) Pers. Cultivos Tropicales, 25(1), 61–66. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/528
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Original Article