Correlation and path coefficient analyses of thirty two (32) exotic early maturing rice (Oryza
sativa L.) lines were evaluated through their yield and yield contributing characters. Almost
all the lines exhibited significance difference for different characters. The results indicated
that days to 50% flowering (0.42*), days to maturity (0.35*), total tillers hill-1
(0.71**),
effective tillers hill-1
(0.82**) had positive and significant association with yield plant-1
for
phenotypic correlation coefficient; whereas, unfilled grains panicle-1
(-0.19*) had
significantly negative correlation with yield. For phenotypic correlation coefficient, the days
to 50% flowering (0.50*), days to maturity (0.39*), total tillers hill-1
(0.80**), effective tillers
hill-1
(0.88**) showed positive and significant association with yield plant-1
, on the other hand
unfilled grains panicle-1
(-0.19*) had significantly negative correlation with yield. Path
analysis revealed that days to maturity (0.87**), total number of tillers hill-1
(0.25**),
effective number of tillers hill-1
(0.48**), panicle length (0.68**) and number of filled grain
panicle-1 (1.29**) had positive direct effects on yield plant-1
. Results suggest days to
maturity, total number of tillers hill-1
, and effective number of tillers hill-1 may be used as
reliable criteria for improving yield of early maturing rice.
Key words:
Real Time Impact Factor:
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Author Name: Md. Manik Sarker
URL: View PDF
Keywords: Correlation, Path Analysis, Early Maturing, Rice and Yield
ISSN:
EISSN: 2312-7945
EOI/DOI:
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