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  Pak. J. Bot., 42(2): 1003-1008, 2010.

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  Updated: 20-05-10

 

 

HETEROSIS FOR THE IMPROVEMENT OF OIL QUALITY IN SUNFLOWER (HELIANTHUS ANNUUS L.)

 

SHER ASLAM1, SHUJAUL MULK KHAN2, MUHAMMAD SALEEM3*,  AFSARI SHARIF QURESHI4, ABDULLAH KHAN5, MUHAMMAD ISLAM1 AND SHAH MASAUD KHAN6

 

Abstract: To improve the oil quality of the available sunflower genotypes by exploiting heterosis-breeding program. Four Cytoplasmic Male Sterile lines TS-17, TS-18, TS-228, TS-335 and four Restorer lines 291RGI, R-25, TR-9, TR-6023 sunflower parents and their sixteen F1 hybrids were evaluated in randomized complete block design with three replicates at Agricultural Research Institute, Tarnab, Peshawar. Highly significant genetic differences (p<0.01) were observed among parents and F1 hybrids for oleic acid (C18: 1), linoleic acid (C18:2) and behenic acid (C20:0). Mid and high parent heterosis estimates of F1 hybrids ranged from -100 to 157.31% and -100 to 113.59% for C20, –29.84 to 52.02% and –31.23 to 50.49% for C18:1, -20.12 to 16.19% and-20.66 to 9.69% for C18: 2 and –100 to 201.08% and –100 to 100% for C20:0 respectively. TS-335 x 291RGI has highest negative mid and high parent heterotic effects for TS-18 x R-25 has maximum positive mid and high parent heterosis for C18:1, TS-18 x TR-6023 has maximum positive mid and high parent heterotic effects for C18:2 and highest negative mid parent heterosis was observed for C20:0 by TS-17 x TR-9, TS-18 x 291RGI. It is concluded that the mid and high parent heterotic effects improve oil quality of the parent of these eight hybrids and are suggested for use in sunflower breeding program.

 


1Department of Genetics, Hazara University Mansehra, Pakistan

2Department of Botany, Hazara University Mansehra, Pakistan

3Pakistan Council of Scientific and Industrial Research, Laboratories Complex, Karachi

4Depatment of Genetics Quaid -e- Azam University Islamabad

5Department of Environmental Sciences, Hazara University, Haripur Campus, Pakistan

6Federal Seed Certification and Registration Department, Swat, Pakistan


   
   

 

   
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