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Updated: 04-07-13

EARLINESS AND YIELD PERFORMANCE OF SUNFLOWER HYBRIDS IN UPLANDS OF BALOCHISTAN, PAKISTAN

SYED ASMATULLAH TARAN^1*, D.M. BALOCH², NAQIB ULLAH KHAN³, JEHAN BAKHT³, SAEED HYDER GHALOO⁴, N. SHAHWANI² AND M.S. KAKAR¹

Abstract: Sunflower hybrids were evaluated for adoptability, earliness and yield potential through multi-locations trials during summer cropping season 2006 (after wheat harvest) in uplands of Balochistan, Pakistan. Stability analysis was carried out for hybrids at three different locations in one year. Early maturity and achene yield were used as criterion for selection. All the hybrids matured in less than 95 days due to summer intensive and longer day’s photoperiod. Therefore, all the hybrids were found suitable to grow in June (after wheat harvest) and to complete their growth cycle before commencing of low temperature during colder nights of October. Hybrids Parsun-1 and Hysun-33 were found early maturing and medium maturing, respectively and suitable for growing in wheat cropping pattern. Complete hybrid stability over all parameters was not proved. Therefore, sunflower hybrids sensitivity authenticated to further intensify breeding work for development of local hybrids with early maturity and good yield.

¹Agriculture Research Institute, Sariab Quetta, Balochistan, Pakistan

²Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Pakistan

³The University of Agriculture, Peshawar, Pakistan

⁴Department of Plant Breeding and Genetics, Sindh Agriculture University, Tandojam, Pakistan

^*Corresponding author: satagri@yahoo.com