Science Letters

Inheritance pattern of some polygenic fiber traits in cotton (Gossypium hirsutum L.)

Syed Awais Sajid Shah a, Muhammad Faheem b, Lal Hussain Akhtar a, Rashid Minhas a, Muhammad Waqas d, Muhammad Shahjahan Bukhari a, Syed Sajid Masood Shah c, Faqir Muhammad Azhar d

a Agricultural Research Station, Bahawalpur, Pakistan

b Nanjing Agricultural University, Nanjing, China

c Central Cotton Research Institute, Multan, Pakistan

d University of Agriculture, Faisalabad, Pakistan

Abstract

Inheritance pattern of some polygenic characters was studied in five varieties of cotton. The five parents were crossed in all possible combinations. The 20 F1 hybrids and their parents were grown in the field under randomized complete block design. Diallel analysis was used to determine the mode of gene actions and genetic components for various yield contributing and fiber traits. Results of regression coefficients showed that all the characters were fit for the genetic analysis. Both additive types of gene actions with partial dominance and over dominance were involved in the expression of the traits studied. These results suggest that these characters can be improved through appropriate selection method or by hybrid development.

Keywords: Gene action, Inheritance, fiber traits, ginning outturn, Gossypium hirsutum.

Received Feb 02, 2014; Revised April 02, 2014; Accepted May 22, 2014

Corresponding author: Syed Awais Sajid Shah; Email: awaiskazmi44786@yahoo.com; Phone: +923127008790