Open AccessCorrelation and path analysis for yield and yield components in sunflower (Helianthus annus. L)
Author(s) -
M Fida Hassan S,
Shahid Iqbal Muhammad,
Rabbani Ghulam,
Naeem Ud Din,
S. Ghulam,
Riaz Muhammad,
Rasool Noorka Ijaz
Publication year - 2013
Publication title -
african journal of biotechnology
Language(s) - English
Resource type - Journals
ISSN - 1684-5315
DOI - 10.5897/ajb12.817
Subject(s) - achene , sunflower , path coefficient , helianthus annuus , helianthus , horticulture , biology , botany , yield (engineering) , head (geology) , path analysis (statistics) , mathematics , materials science , statistics , paleontology , metallurgy
Ten (10) sunflower genotypes were evaluated in a triplicated randomized complete blocked design in field for plant height, stem diameter at base, internodal length, head diameter, number of whorls head -1 , achene weight head -1 , 100-achene weight, achene oil and protein content. Association among various plant traits and direct and indirect effects of various traits on achene weight head -1 were estimated. Correlations of head diameter, 100-achene weight, stem diameter at base, internodal length and oil contents were positive and significant with achene weight head -1 . Path analysis showed that direct effects of plant height, head diameter, 100-achene weight and oil contents were positive while direct effects of stem diameter at base, internodal length, number of fertile whorls head -1 and protein contents were negative on achene weight head -1 . This shows that selection based on head diameter, 100-achene weight, plant height, internodal length and stem diameter at base will be more effective in improving yield.
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