CORRELATION AND PATH COEFFICIENT ANALYSIS FOR YIELD COMPONENTS IN TSWV INFECTED TOMATO (Solanum lycopersicum L.)

An experiment was conducted to study correlation and path coefficient analysis for yield components in TSWV infected tomato (Solanum lycopersicum L.) during October 2009 to March 2010 at the Research and Development farm of Energy Pac Agro. Limited, Gazipur. The experiment was laid out in randomized complete block design with three replications. For healthy plants, correlation coefficient analysis revealed significant positive correlation of yield was observed with number of leaf per plant (0.930). Path coefficient analysis revealed that number of fruits per plant showed highest positive direct effect (0.569) on fruit yield followed by fresh root weight (0.409), leaf chlorophyll content (0.357), number of leaf (0.188), number of branch per plant (0.129) and fruit length (0.074). In tomato spotted wilt virus infected tomato plants correlation coefficient analysis revealed significant positive correlation of yield with rooting depth per plant (0.955). Path coefficient analysis revealed that fresh root weight (0.550)  per plant showed the highest positive effect on fruit yield followed by rooting depth (0.375), fruit girth (0.270), number of flower per plant (0.129) and fresh shoot weight (0.033). The present study suggested that more emphasis should be given to select a tomato lines with higher number of fruits per plant and higher fresh root weight