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- Title
NOVI HIBRIDI SUNCOKRETA TOLERANTNI NA TRIBENURON-METIL.
- Authors
Jocić, Siniša; Malidža, Goran; Hladni, Nada; Gvozdenović, Sandra
- Abstract
Discovery of tribenuron-methyl resistant wild Helianthus annuus L. population (ANN-KAN) created an opportunity for expansion of sunflower herbicide resistance breeding program. The aim of this work was creation of sunflower hybrids resistant to tribenuron-methyl. Creation of tribenuron-methyl resistant hybrids would enable the use of a wider palette of herbicides for sunflower, more efficient chemical control of Cirsium arvense and more economically profitable post-emergence control of some annual broad-leaved weeds in sun flower. Original populations SURES-1 and SURES-2 are homozygous for resistance to tribenuron-methyl. F1 generations produced from the crossings are completely resistant to tribenuron-methyl, pointing out to dominant way of inheritance of this trait. Studies on the ex act number of genes controlling the resistance are in progress. Tribenuron-methyl resistance was transferred from original populations into a number of famele and restorer in bred lines of the cultivated sunflower. These in bredlines could enable creation of a number of hybrids resistant to tribenuron-methyl. Hybrids NS-H-2017-SU, NS-H-2018-SU and NS-H-2019-SU are resistant to doubled application dose of tribenuron-methyl. Agronomical characteristics of these hybrids are on par with the leading conventional sun flower hybrids.
- Subjects
SUNFLOWERS; PLANT hybridization; HERBICIDE resistance; HERBICIDES; CANADA thistle
- Publication
Zbornik Radova - A Periodical of Scientific Research on Field & Vegetable Crops, 2008, Vol 45, Issue 2, p89
- ISSN
0354-7698
- Publication type
Article