A  Study on Heterosis and Combining Ability Through Line X Tester in Some Genotypes of Sunflower (Helianthus Annuus L.)

Ahsan Iqbal,; Asif Ismail; Ayesha Nisar; Rabia Perveen; Sohail Ahmad Khan; Zainab Irfan

A Study on Heterosis and Combining Ability Through Line X Tester in Some Genotypes of Sunflower (Helianthus Annuus L.)

Authors

Ahsan Iqbal, Associate Prof., 2. CABB, University of Agri., Faisalabad (Pakistan)
Asif Ismail Department of PBG, University of Agri., Faisalabad (Pakistan)
Ayesha Nisar Department of PBG, University of Agri., Faisalabad (Pakistan)
Rabia Perveen Department of PBG, University of Agri., Faisalabad (Pakistan)
Sohail Ahmad Khan CABB, University of Agri., Faisalabad (Pakistan)
Zainab Irfan Department of PBG, University of Agri., Faisalabad (Pakistan)

Keywords:

HETEROSIS, COMBINING, LINE X TESTER, GENOTYPES

Abstract

Sunflower (Helianthus annuus L.) is mainly grown for its benefits in oil and protein contents. This research was carried out in the Rajawala Research Station of the University of Agriculture, Faisalabad. During the Autumn of 2022, some sunflower genotypes were sown, four being lines and three as male (testers) to develop twelve cross combinations. During the spring season, of 2023, the parents and their crosses were evaluated using a Randomize Complete Block Design. Data was recorded for different yield parameters including plant height, number of leaves, leaf area, internodal length, stem diameter, head diameter, seed yield/head and 100 seed weight. After that, the data was kept for ANOVA to estimate the significance of the recorded data. Combining ability and heterosis indicated the best combinations among parents and crosses.

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A Study on Heterosis and Combining Ability Through Line X Tester in Some Genotypes of Sunflower (Helianthus Annuus L.)