Determining of Yield Performances of Some Imi Resistant Sunflower Hybrids in Trakya Region, Turkey

Abstract

Sunflower(Helianthus annuus L.) is one of the main oil crops in the world but it is theessential oilseed in Turkey. Sunflower grows widely in the Turkey and alsoother countries due to higher adaption capability, higher mechanization use,easy marketing, and also it is one of most preferable and consuming vegetableoil in Turkey. Weeds and broomrape parasite is the devastating biotic stressfactor limited seed and oil yield in sunflower production. Clearfield Systemhybrids resistant to Imidazilonone (IMI) herbicide which controls bothbroomrape and also key broad-leaf weeds is commonly use in the world widely,because Clearfield system is easy solution both for broomrape problem and alsoespecially large leaf weeds such as Xanthium strumarium Wallr. Chenopodiumalbum L., Echinochloa cruss-galli, Sinapsis arvensis L., Amaranthus spp.,Solanum nigrum L., Datura stramonium L. ragweed, Avena spp. etc. in sunflowerproduction. The study conducted to determine IMI sunflower hybrid performancesin yield conducted trials in Tekirdag and Edirne, Trakya Region which isEuropean part of Turkey. This region has more than 40 % of sunflower productionareas in Turkey. IMI candidate hybrids were existed in yield trials and allimportant yield traits were measured and compared with control hybrids whichare most selling commercial hybrids in the market in 2017. Some candidatehybrids had higher performances in the trials.