New sunflower hybrids tolerant to tribenuron-methyl

Abstract

The creation of sunflower hybrids tolerant to tribenuron-methyl enabled the use of wider palette of herbicides to control effectively weeds during the growing season. Moreover, thanks to this tolerance, chemical control of broad-leaves weeds in sunflower, especially Cirsium arvense, is more efficient. The Institute of Field and Vegetable Crops offers four new hybrids tolerant to tribenuron-methyl: NS SUMO SUN, NS SUMO STAR, NS SUMO SjAj and NS SUMO SOL, released in 2016. Hybrids belong to early and medium-early maturity groups; have high yield potential and high oil content. They are adapted for cultivation in different environmental conditions. All hybrids are resistant to broomrape (Orobanche cumana Wallr) races from A-E and have a high level of tolerance to Phomopsis, white rot (Sclerotinia sclorotiorum), rust (Puccinia helianthi) and others. The paper presents the results of seed and oil yield from the official trials of the Department of variety registration within the Ministry of Agriculture and Environmental Protection of the Republic of Serbia.

Stvaranjem hibrida suncokreta tolerantnih na sulfonil-ureu tj. tribenuron-metil omogućeno je korišćenje šire palete herbicida za efikasno suzbijanje korova u toku vegetacionog perioda. Zahvaljujući ovoj tolerantnosti znatno je olakšana borba protiv širokolisnih korova, posebno palamide, u usevu suncokreta. U ponudi Instituta za ratarstvo i povrtarstvo su četiri nova hibrida NS SUMO SUN, NS SUMO STAR, NS SUMO SjAj i NS SUMO SOL, registrovanih u 2016. godini. Hibridi priradaju grupi ranih i srednje ranih hibrida suncokreta, pokazuju visok potencijal rodnosti i imaju visok sadržaj ulja u semenu. Prilagođeni su gajenju u različitim agroekološkim uslovima jer imaju široku adaptabilnost na uslove proizvodnje. Svi hibridi imaju otpornost prema volovodu (Orobanche cumana Wallr), rase od A-E i visok stepen tolerantnosti prema Phomopsis-u, beloj truleži (Sclerotinia sclorotiorum), rđi (Puccinia helianthi) i dr. U radu su prikazani rezultati prinosa semena i ulja komisijskih ogleda Odeljenja za priznavanje sorti Ministarstva poljoprivrede i zaštite životne sredine Republike Srbije.