1. CORRELATION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENTS IN LINSEED (LINUM USITATISSIMUM L.).
- Author
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Ibrar, Danish, Ahmad, Rafiq, Mirza, M. Yasin, Mahmood, Talat, Khan, Mubashir Ahmad, and Iqbal, Muhammad Shahid
- Subjects
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FLAXSEED , *SEED yield , *GENOTYPES , *PHENOTYPES , *PLANT breeding , *PLANT genetics - Abstract
The present study was carried out to estimate genotypic and phenotypic correlation coefficients to create a path for the improvement in yield of linseed (Linum usitatissimum L). For this purpose nine linseed accessions (LS-1, LS- 15, LS-16, LS-20, LS-27, LS-29, LS-35, LS-40, LS-48) and a check variety Chandani were tested at Department of Plant Breeding and Genetics, PMAS, Arid Agriculture University, Rawalpindi, Pakistan during 2011-12. The experiment was laid out in RCBD. Genotypic correlation estimates showed that seed yield of a plant is positively affected by primary branches, number of capsules per plant, number of seeds in each capsule, thousand seed weight and oil content while days to flower initiation, number of days to complete flowering and number of days to physiological maturity has a negative impact on seed yield of plant. Phenotypic correlation estimate results showed the similar findings except the thousand seed weight which has a significantly positive effect on seed yield. Estimates of the genotypic correlation coefficients were further used to determine the path coefficient of analysis by partitioning the correlation into indirect and direct effects. Path coefficient analysis depicted that the number of capsules per plant (0.432), oil content (0.194%), number of primary branches of each plant (0.196), thousand seed weight (0.100 g) and number of seeds in each capsule (0.116) had a direct influence on seed yield in positive direction. This predicted that while designing a breeding strategy for the improvement of linseed a trait should be kept in mind to enhance seed yield in linseed. Therefore focusing on these traits, would improve breeding efficiency of linseed in the future breeding programs. [ABSTRACT FROM AUTHOR]
- Published
- 2016