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Paper Information

Journal:   SEED AND PLANT PRODUCTION JOURNAL   2013 , Volume 29-2 , Number 3; Page(s) 353 To 367.
 
Paper: 

EVALUATION OF NEW SUNFLOWER HYBRIDS FOR SECOND CROPPING SYSTEM IN TEMPERATE-COLD REIGINS OF KERMANSHAH PROVINCE IN IRAN

 
 
Author(s):  REZAIZAD A.*, ZAREI SIAHBEIDI A., SHIR NIAZI FARD A.
 
* 
 
Abstract: 

New sunflower hybrids were evaluated for their suitability for second cropping system in temperate-cold regions of Kermanshah Province in Iran. A split plot arrangement in randomized complete block design with three replications was used in 2010 to 2011. Planting dates including: June 11, June 26 and July 11 and sunflower hybrids including: Azargol, Farrokh and SHF-81-90 were assigned to main plots and sub- plots, respectively. Results showed that effect of planting date was signification on agronomic traits such as seed yield, days to physiological maturity and 1000 seed weight. Seed yield reduced with delay in planting date as the first and third planting dates had the highest and lowest seed yield with 4199 and 3118 kg ha-1, respectively. Hybrids were also significantly different for most of the traits. New hybrid Farrokh had the highest seed yield with 3940 kg ha-1 followed by SHF-81-90 and Azargol with 3788 and 3459 kg ha-1, respectively. Farrokh with 95 days to physiological maturity was more suitable for second cropping systems. In conclusion, new early maturity sunflower hybrid Farrokh is recommended for second cropping systems in temperate-cold regions of Kermanshah Province in Iran.

 
Keyword(s): SUNFLOWER, EARLY MATURITY HYBRIDS, PHYSIOLOGICAL MATURITY, PLANT HEIGHT, SEED YIELD AND YIELD COMPONENTS
 
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