Comparative performance of elite inbred lines with alien cytosterile sources and their corresponding hybrids in sunflower (Helianthus annuus L.)

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 study was development 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-leaves weeds in sunflower. 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 exact number of genes controlling the resistance are in progress. Tribenuron-methyl resistance was transferred from original populations into a number of female and male inbred lines of cultivated sunflower. These inbred lines could enable creation of a number of hybrids resistant to tribenuron-methyl. Hybrids SUMO-1-PR, SUMO-2- OR and SUMO-3 are resistant to doubled application dose of tribenuron-methyl. Agronomical characteristics of these hybrids are on the level with the leading conventional sunflower hybrids.

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Identification of Restorers with Desirable General Combining Ability from among New Inbred Lines of Sunflower (Helianthus annuus L.)

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2020.912.347 ◽

2020 ◽

Vol 9 (12) ◽

pp. 2923-2932

Author(s):

S. D. Nehru ◽

Akshata Timmanna Budihal ◽

M. S. Umar Farooq ◽

Y. G. Shadakshari ◽

M. S. Uma ◽

...

Keyword(s):

Helianthus Annuus ◽

Combining Ability ◽

Inbred Lines ◽

General Combining Ability ◽

Helianthus Annuus L

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RESISTANCE OF INBRED LINES AND HYBRIDS OF SUNFLOWERS (HELIANTHUS ANNUUS L.) IN A NATURAL EPIDEMIC OF ASTER YELLOWS

Canadian Journal of Plant Science ◽

10.4141/cjps60-050 ◽

1960 ◽

Vol 40 (2) ◽

pp. 375-382 ◽

Cited By ~ 3

Author(s):

Eric D. Putt ◽

W. E. Sackston

Keyword(s):

Helianthus Annuus ◽

Inbred Lines ◽

Field Conditions ◽

Single Plant ◽

Aster Yellows ◽

Helianthus Annuus L ◽

Single Cross ◽

Single Cross Hybrids

Resistance to aster yellows has been identified in sunflowers. In 560 inbred lines and single plant progenies, 356 showed no symptoms of the disease under field conditions. The others showed infections ranging up to 100 per cent. Six entries, observed at three points, showed a range of infection from 0 to 86 per cent and eighteen others, at two points, a range from 0 to 73 per cent. The behaviour was consistent at the different locations.The resistance to aster yellows appeared to be qualitatively inherited. Single cross hybrids between resistant and, susceptible lines showed the resistance to be dominant. It occurred in association both with susceptibility and with resistance to rust. Of 15 lines with evidence of resistance to leaf mottle disease, 13 lines also had resistance to aster yellows.

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