Correlation studies of three different F2 population in rice (Oryza sativa L.)

Correlation studies in F2 population in rice

Abstract

This study was performed to determine the assosiation between seventeen agronomic traits
of three F 2 population viz; Dhanrashi x Wita-12, Dhanrashi x Shyamala and Sahbhagidhan x
Birsamati in rice at Birsa Agricultural University , Kanke, Ranchi, Jharkand in 2019. Sixteen
characters were assessed in this study viz days to flowering, plant height, panicles per plant,
panicle length, primary branches per panicle, secondary branches per panicle, spikelets per
panicle, grains per panicle, 100 grain weight, total yield per plant, grain yield per plant,
unfilled grains per plant, grains per plant, spikelets per plant, grain length and grain breadth.
Results showed that all the characters except days to flowering and 100 grain weight were
positively and significantly correlated with grain yield per plant and grains per panicle in all
F2 populations. grain yield per plant was negatively and less assosiated with grain length
and L/B ratio in both Dhanrashi x Wita-12 and Sahbhagidhan x Birsamati where as in
Dhanrashi x Shyamala grain yield is negatively associated with only L/B ratio.