CORRELATION AND PATH ANALYSIS OF TOMATO CROP (Solanum lycopersicum L.) UNDER PROTECTED CONDITIONS
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Authors
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LEKSHMI S. L * and V. A. CELINE
Onattukara Regional Agricultural Research Station, Kerala Agricultural University, Kayamkulam - 690 502
Keywords:
Tomato, protected cultivation, yield, correlation, path analysisAbstract
Tomato genotypes ( 40 no.) were studied for eight quantitative characters from October 2014 to
April 2015 to assess the nature and magnitude of genetic variability under protected conditions. A
wide range of variation was noticed among the characters studied.The genotypic correlation coefficients
were similar in nature and higher in magnitude than the corresponding phenotypic correlation
coefficients. Yield recorded positive correlation with fruits per plant (0.6224), truss per plant (0.7809),
fruits per truss (0.6720) and fruit weight (0.6360). Path analysis revealed considerable positive indirect
effects on yield per plant as exerted by fruits per plant, truss per plant, fruit length, fruit weight and
fruit girth. Highest positive direct effect was recorded for fruit weight (0.3956) followed by truss per
plant (0.3558) and fruits per plant (0.3381). This indicates the importance of these characters in
yield improvement programme in tomato under protected conditions.
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