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Hydrothermal Emergence Model for Herbicide-Resistant Biotype of
Goosegrass (Eleusine indica)
Hiew Chee Nam
Supervisor: Prof. Madya Dr. Chuah Tse Seng
Bachelor of Science Agrotechnology (Crop Science)
School Of Food Science and Technology
Goosegrass (Eleusine indica) is considered as one of most problematic weeds due to
its strong adaptability to adverse environment. Over reliance on herbicide has led to
evolution of herbicide-resistant goosegrass (HRG) worldwide and currently there is no
predictive model available for predicting emergence of HRG biotype. This study aimed
to develop and validate a hydrothermal emergence model for predicting emergence
of HRG. Laboratory studies will be conducted to examine seed germination of
goosegrass at temperatures that ranged from 10 o C to 40 o C and osmotic potential
ranging from 0 to -1.0 MPa to obtain the parameters for constructing hydrothermal
emergence model. Field studies will be carried out to obtain emergence data for
validation of predictive model developed in the laboratory. A hydrothermal emergence
model predicting emergence of HRG will be successfully constructed. This model will
be able to predict emergence of HRG accurately and aid in its management in the
field.
1095 | UMT UNDERGRADUATE RESEARCH DAY 2018