Vol. 7 (5) : September-October 2016 issue
Green Farming Vol. 7 (5) : 1049-1052 ; September-October, 2016
Combining ability studies in maize (Zea mays L.) across two plant densities environment using line × tester method
H. DABRAL1*, D.C. BASKHETI2 and R.K. SINGH3
Deptt. of Genetics and Plant Breeding, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar - 248 001 ( Uttarakhand)
Designation : 1Ph.D. Scholar *(dabralhimanki@gmail.com), 2Asstt. Professor, 3Manager Sales & Application
Subject : Crop Genetics and Plant Breeding
Paper No. : P-4664
Total Pages : 4
Received : 08 December 2015
Revised accepted : 06 August 2016
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Citation :
H. DABRAL, D.C. BASKHETI and R.K. SINGH. 2016. Combining ability studies in maize (Zea mays L.) across two plant densities environment using line × tester method. Green Farming Vol. 7 (5) : 1049-1052 ; September-October, 2016
ABSTRACT
The eight lines (Tarun, Pob 445, Pop 45, Pob 31, YHP B, POB 31, POB 445, POB 446) and three testers (DBR N 21, Tarun and V-116-1) of maize were crossed to derive 24 F1s. The 35 genotypes (11 parents and 24 F1s) were evaluated for general combining ability and specific combining ability for yield and quality traits across two plant population densities. The higher general combinig ability in V-116-1 in optimum plant population density, Tarun in high plant population density and DBR N 21 across both the environment. The higher specific combining ability for yield was obtained in crosses POB 31 × Tarun in optimum plant population density, POB 446 × DBR N 21 and POB 31 × Tarun across both the environment. These best hybrids might be utilized for further maize improvement programme.
Key words :
GCA, Line × tester, Maize, Plant density, SCA, Zea mays.
