Open AccessCharacter association and path coefficient analysis for grain yield of parents and hybrids in rice (Oryza sativa L.)
Author(s) -
Apichai Srijan,
Sandeep Kumar,
Ch. Damodar Raju,
R. Jagadeeshwar
Publication year - 2016
Publication title -
journal of applied and natural science
Language(s) - English
Resource type - Journals
eISSN - 2231-5209
pISSN - 0974-9411
DOI - 10.31018/jans.v8i1.768
Subject(s) - panicle , oryza sativa , path coefficient , hybrid , path analysis (statistics) , yield (engineering) , agronomy , grain yield , biology , productivity , mathematics , horticulture , materials science , biochemistry , statistics , macroeconomics , economics , metallurgy , gene
An experiment was conducted to study the inter-relationships, direct and indirect effects of various yield attributing characters towards grain yield per plant, at Rice Research Centre, Rajendranagar. Grain yield per plant had significant positive correlation with productivity per day (0.97), panicle weight (0.71), number of filled grains per panicle (0.57), panicle length (0.46), number of productive tillers per plant (0.34), days to 50 per cent flowering (0.23) and plant height (0.16).Path analysis revealed that productivity/ day (0.91) was the major contributor for grain yield followed by, days to 50 per cent flowering (0.19), grain length (0.05), number of productive tillers per plant (0.04), panicle weight (0.04) and number of filled grains per panicle (0.04). It can be concluded from the study that, the above characters can be used as the selection criteria in any rice yield improvement breeding programmes.