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DIALLEL ANALYSIS OF THE INHERITANCE PATTERN OF AGRONOMIC TRAITS
OF BREAD WHEAT
INAMULLAH, HABIB AHMAD*, FIDA MOHAMMAD1, SIRAJ-UD-DIN2, GHULAM HASSAN1
AND RAHMANI GUL2
Abstract: Studies were carried out on the inheritance pattern of the important
yield parameters viz., tillers per plant, spike length, grains per spike,
1000 grains weight, harvest index and yield per plant of 8 bread wheat
varieties. The component analysis indicated that the additive component
was significant for all the traits except tillers per plant and yield
per plant. The dominance component was significant for spike length,
tillers per plant and yield per plant. Regression analysis revealed
additive type of gene action for grains per spike, 1000 grains weight
and harvest index and over dominant type of gene action for rest of
the traits. Correlation analysis of dominant genes with the phenotype
of the parents revealed recessive gene control for tillers per plant
and spike length, while dominant gene control was indicated for rest
of the traits studied.
Department of Botany, Hazara University, Mansehra, Pakistan.
1 Department of Plant Breeding and Genetics NWFP Agricultural University
Peshawar, Pakistan.
2 Department of Botany, Islamia College Peshawar, Pakistan.
* Corresponding author's email: drhahmad@gmail.com
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