Green Global
Foundation   Journal
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CORRELATION AND PATH COEFFICIENT ANALYSIS AMONG SEED YIELD TRAITS AND OIL CONTENT IN ETHIOPIAN LINSEED GERMPLASM (Pages : 8 - 16)

Keeping in view the lack of information on genetic diversity in the Ethiopian linseed germplasm and need to study associations among seed yield, yield related traits and oil content in this crop, the present investigation was undertaken on 81 geographically diverse Ethiopian accessions of linseed. Theses accessions were evaluated at the Agricultural Research Center, Sinana, and on farmers’ field at Robe during 2001/2002 cropping season. Seed yield per plot was significantly associated with seed weight, seed yield per plant, harvest index and biomass at both locations. However, at Sinana, plant height and oil content were also significantly associated with seed yield per plot. Path coefficient analysis for seed yield per plant at Sinana indicated that number of capsules per plant and biomass are good indicators of seed yield per plant. At Sinana, plant height, harvest index, number of primary branches and tillers per plant had high positive direct effect at genotypic level but to use these traits for indirect selection, negative association of harvest index with plant height, number of primary branches and tillers per plant has to be taken care of through simultaneous selection with appropriate weightage to the pair of traits. Path analysis indicated that harvest index and biomass were the main determinats of yield per plot at both Sinana and Robe. Analysis over locations also supported that harvest index and biomass are the main determinant of yield per plot. Seed weight was found to be an important trait in indirect selection for oil content. Download