1Department of PMB&GE, Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad-224229, (U.P), India
2Department of Genetics and Plant Breeding, Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad-224229, (U.P.), India
*Email: brijendra.nduat@gmail.com
Online published on 28 November, 2016.
A study of characters association and direct and indirect effects of yield contributing traits on grain yield was carried out using fourteen rice genotypes during Kharif, 2012. Grain yield per plant had significant positive correlation with biological yield per plant (0.76) followed by test weight (0.57), number of grains per panicle (0.35), plant height (0.35) and number of spikelets per panicle (0.33) at phenotypic level. Path analysis revealed that biological yield per plant (2.45) exhibited maximum positive direct effect on grain yield per plant followed by number of spikelets per panicle (2.149), proline content (0.287), spikelets fertility (0.211), sodium content (0.166) and number of tillers per plant (0.157), while remaining traits exhibited negative direct effects on grain yield. It can be concluded that biological yield per plant, number of spikelets per panicle, number of tillers per plant and spikelets fertility are important plant traits which should be considered when any breeding programfor higher grain yield in rice istobe planned.
Rice, correlation coefficient and path coefficient analysis
