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Character Association and Path Analysis for Yield Components and Biochemical Traits in Maize (Zea mays L.) Genotypes

DOI: 10.18805/IJARe.A-5723    | Article Id: A-5723 | Page : 135-140
Citation :- Character Association and Path Analysis for Yield Components and Biochemical Traits in Maize (Zea mays L.) Genotypes.Indian Journal of Agricultural Research.2022.(56):135-140
Prabhat Kumar Singh, B. Sushma, Nidhi Kumari singhpk.gpb@gmail.com
Address : Department of Genetics and Plant Breeding, Centurion University of Technology and Management, Paralakhemundi-761 211, Orissa, India.
Submitted Date : 5-12-2020
Accepted Date : 22-07-2021

Abstract

Background: Grain yield is a complex character so direct selection for yield as such can be misleading. Keeping in view, the present study aimed to assess the path coefficient analysis with correlation coefficient technique to establish the direct and indirect relationship between the yield and its component.
Methods: The present investigation carried out during kharif 2019 at Centurion University of Technology and Management, Odisha in randomized complete block design with 3 replication involving 20 maize genotypes. Data were collected from five randomly selected plnts on 20 agromorphic and biochemical traits. All the biochemical analysis estimated from leaf sample following standard procedure.  
Result: The traits shelled grain weight, cob diameter, number of grains per cob and anthesis silking interval were found to possess significant association in disirable direction with five ear weight at both genotypic and phenotypic levels. None of the biochemical trairts establishing significant positive association with yield. Highest positive direct effect on 5 ear weight  was noticed by shelled grain weight (1.108) followed by phenols (0.115), internodal length (0.106) and days to 50 percent anthesis (0.102) indicating that the selection for these characters were likely to bring about an overall improvement in grain yield directly.

Keywords

​Biochemical traits Correlation analysis Maize Path coefficient

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