Assessing Rice Varieties for Resistance to the Lesser Grain Borer
Author Information
Author(s): Chanbang Y, Arthur F. H, Wilde G. E, Throne J. E, Subramanyam B. H
Primary Institution: Chiang Mai University
Hypothesis
Can the presence of broken and cracked hulls in rice varieties correlate with progeny production of the lesser grain borer?
Conclusion
Hull integrity is a major factor in the susceptibility of rice kernels to the lesser grain borer.
Supporting Evidence
- Progeny production of R. dominica was positively correlated with the percentage of broken hulls.
- Kernel hardness and amylose content did not appear to be valid indicators of progeny production.
- Soundness and integrity of the hull are the best indicators for varietal screening against R. dominica.
Takeaway
This study looked at different types of rice to see which ones are better at keeping bugs away. It found that rice with strong hulls is less likely to get infested.
Methodology
Laboratory tests were conducted on three rice varieties to evaluate their resistance to the lesser grain borer by assessing hull integrity and progeny production.
Limitations
The study was limited to only three rice varieties and may not represent all rice types.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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