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Determining hybrid vigor and heterosis in different yield components in sunflower (Helianthus annuus L.)


Determining hybrid vigor and heterosis in different yield components in sunflower (Helianthus annuus L.)



Anadolu 13(2): 32-47



Hybrid performance, vigour, heterosis and heterobeltiosis for 5 yield components were evaluated for 25 sunflower hybrids grown during 2000 and 2001 in Turkey. The highest values for heterosis (66%) and heterobeltiosis (39.7%) were recorded for 1000-seed weight and head diameter, respectively, in the cross 0704-A x 2644-R, whereas the highest hybrid vigour (42.5%) was recorded for head diameter in the cross 0704-A x 2280-R.

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