| Summary: | Panicle architecture is shown to have a direct impact on rice grain yield, making it an important characteristic for
rice varietal improvement. In this study, we focus on the Panicle Trait Phenotyping Tool (P-TRAP), freely accessible,
platform-independent software for analyzing rice panicle architecture, as one of the ways for generating comprehensive
and reproducible panicle structure data and identifying superior breeding lines. In this analysis, the rice panicle
structures of 122 RILs along with their parents were analyzed using P-TRAP software. P-TRAP assesses nine spikelet
characteristics and its impact on grain yield. All traits had positive and significant associations and have a direct
influence on grain yield. The findings indicate that most characteristics’ coefficients of variation had lower values,
with the exception of the characteristics spikelet number, spikelet area and grain yield. In comparison to other traits,
the standard error for the traits spikelet number and grain yield had a larger value. To better understand their genetic
basis, these quantitative traits can be exploited in genome-wide association analyses. Hence, analyzing these traits is
crucial. The P-TRAP tool is preferred because it reduces human effort and provides data in a shorter time span when
compared to the traditional method.
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