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Volume 4, Issue 4      October - December, 2016

GENETIC VARIABILITY AND HERITABILITY STUDIES IN F2 POPULATION OF SPRING WHEAT
 

Asghar, K.1, Z.A Soomro1*, S.N. Mari1, T.A. Baloch2, A.A. Rajper1, U.A. Kasi1 and F. Asghar3

1Department of Plant Breeding and Genetics, Sindh Agriculture University Tandojam-70060, Pakistan

2Department of Agriculture Research, Government of Balochistan, Pakistan

3Department of Entomology, Sindh Agriculture University Tandojam-70060, Pakistan

 

ABSTRACT

 

A research experiment was conducted to investigate the variability and heritability  in F2 population of spring wheat at the experimental field of Sothern Wheat Research Station, Tandojam during 2014-15.The experimental material consisted of 8F2 hybrid viz: Sassui x Anmol-91, WL-711 x Anmol-91, Sassui x Johar, Abadgar x SKD-1, Sassui x Abadgar-93, Marvi x Noori, Moomal- 2002 x Anmol-91, Marvi x Sassui and their parents were sown in Randomized  Complete Block Design (RCBD) with 3 replications. Genotype were highly significant at 0.01 level of probability for days to 75 % heading, days to 75% maturity, plant height, spike length and spikelets spike-1. The highest heritability (95.39%) regarding spike length was displayed by cross WL-711 x Anmol-91. Spike length is the main contributors to the grain yield and may be kept as selection criteria for developing high yielding varieties. The F2 population Sassui x Anmol-91 and WL-711 x Anmol-91 could be selected for higher yield in advanced generations.

 

Keywords: Heritability, genetic advance, genetic variability, segregating population 

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