Vol. 8 (2) : March-April 2017 issue
Green Farming Vol. 8 (2) : 326-329 ; March-April, 2017
Appraisement of variability, heritability and genetic advance among rice genotypes for yield and quality traits
RANJEET SINGH SRANa1*, D.P. PANDEYb2, AMANINDER DEEP SINGHa3 and NIMIT KUMARa4
aDepartment of Crop Improvement, CSKHPKV, Palampur - 176 062, Dist. Kangra (Himachal Pradesh)
bRice & Wheat Res. Centre, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Malan - 176 047 (H.P.)
Designation : 1,3,4Ph.D. Scholar *(jeetsran10@gmail.com), 2Principal Scientist
Subject : Crop Genetics and Plant Breeding
Paper No. : P-5678
Total Pages : 4
Received : 11 August 2016
Revised accepted : 01 February 2017
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Citation :
RANJEET SINGH SRAN, D.P. PANDEY, AMANINDER DEEP SINGH and NIMIT KUMAR. 2017. Appraisement of variability, heritability and genetic advance among rice genotypes for yield and quality traits. Green Farming Vol. 8 (2) : 326-329 ; March-April, 2017
ABSTRACT
The current investigation was done to explore the nature and magnitude of variability, heritability and genetic advance in rice by evaluating 43 genotypes for yield, yield attributing and quality characters. Analysis of variance divulged significant differences for all the characters. Phenotypic variance was slightly higher than the genotypic variance for all the characters indicating the minimal environmental influence on these traits. Among all the characters, high Genotypic Coefficient of Variation (GCV) and Phenotypic Coefficient of Variation (PCV) were observed for gelatinization temperature followed by grains per panicle and grain yield per plant. Highest heritability was recorded for days to 50 % flowering, plant height, panicle length, spikelets/panicle, grains/panicle, spikelet fertility, 1000-grain weight, grain yield/plant, grain length, grain breadth, L:B ratio, protein content, amylose content, gelatinization temperature and gel consistency which connote that these characters have high genetic variability and transmissibility. In contrast, low genetic advance was obtained for all the characters under study. High heritability with low genetic advance indicated the presence of non-additive gene action.
Key words :
Genetic advance, Heritability, Variability, Rice genotypes, Yield & quality traits.