Open AccessEvaluation of Exotic Rice Germplasm (Oryza sativa L) for Correlation and Path Coefficient Analysis for Seed Yield Attributing Traits
Author(s) -
Adupa Pravalika,
G. Roopa Lavanya,
B. G. Suresh
Publication year - 2021
Publication title -
international journal of plant and soil science
Language(s) - English
Resource type - Journals
ISSN - 2320-7035
DOI - 10.9734/ijpss/2021/v33i2230693
Subject(s) - panicle , germplasm , path coefficient , heritability , biology , oryza sativa , path analysis (statistics) , agronomy , genetic variability , grain yield , horticulture , yield (engineering) , genotype , mathematics , gene , biochemistry , statistics , genetics , materials science , metallurgy
Thirty seven rice germplasm were evaluated to assess genetic variability, heritability, genetic advance, correlation and path coefficient analysis for 17 quantitative characters. The experimental results concluded that TP-29632, followed by TP-30015, TP-29637, SHUATS DHAN-2 and TP- 30025 was found to be superior in grain yield among 37 exotic rice genotypes. IRRI-5 (TP-29632), IRRI-10 (TP-30015) and IRRI-21(TP-29759) recorded early maturity among 37 genotypes. Grain yield per hill was positively and significantly associated with flag leaf width, number of tillers per hill, number of panicles per hill, number of spikelets per panicle, number of filled grains, grain weight, biological yield, harvest index at both genotypic and phenotypic levels. Biological yield, harvest index, number of panicles per hill, plant height, flag leaf width recorded positive direct effect on grain yield per hill at both phenotypic and genotypic levels.