Correlation and path analysis for seed yield in sunflower (Helianthus annuus L.) under charcoal rot (Macrophomina phaseolina) stress conditions
2007
Habib, H. (On Farm Water Management, Punjab, Lahore (Pakistan). Dept. of Agriculture) | Mehdi, S.S. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics) | Anjum, M.A. (Ayub Agricultural Research Inst., Faisalabad (Pakistan). Soil Bacteriology Section) | Mohyuddin, M.E. (Oilseed Research Inst., AARI, Faisalabad (Pakistan)) | Zafar, M. (Agricultural Extension, Punjab (Pakistan))
One hundred and four (104) sunflower genotypes were analyzed for correlations between several yield components on one hand and seed yield on the other under charcoal rot (Macrophomina phaseolina) stress conditions. The genetic correlations of stem girth, head diameter, 100-achene weight, number of seeds per head and stem girth length ratio was positive and significant with sunflower seed yield. Path analysis showed that direct selection of traits like number of seeds per head and 100-achene weight could improve seed yield.
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