scholarly journals Evaluation of the Combining Abilities and Gene Effects of Agronomic Traits in Sunflower Inbred Lines (Helianthus annuus L.)

2016 ◽  
Vol 6 (20) ◽  
pp. 97-109
Author(s):  
F. Hassanzadeh ◽  
M. Toorchi ◽  
M. Moghadam Vahed ◽  
S. Aharizad ◽  
M. Ghaffari ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Agronomic Traits ◽  
Inbred Lines ◽  
Gene Effects ◽  
Helianthus Annuus L ◽  
Combining Abilities

scholarly journals Combining abilities of new inbred lines of sunflower (Helianthus annuus L.)

Genetika ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. 289-296
Author(s):  
Mihajlo Ciric ◽  
Sinisa Jocic ◽  
Sandra Cvejic ◽  
Milan Jockovic ◽  
Petar Canak ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Plant Height ◽  
Inbred Lines ◽  
F1 Hybrids ◽  
Head Diameter ◽  
Helianthus Annuus L ◽  
Hybrid Combination ◽  
Combining Abilities

Combining abilities for plant height and head diameter of ten sterile Alines, three restorers - RF lines and their (10x3) F1-hybrids were examined by line x tester method. Significant differences were found between A-lines, RFlines (testers) and their hybrids. The highest mean for plant height had line MIA- 57 (198.17 cm) and hybrid combination MG-MI-1 x MI-A-57 (239 cm), and the lowest mean had line PL-DI-13 (79.67 cm) and hybrid MG-MI-4 x PL-DI-13 (152.67 cm). Line PL-DI-52 (24.47 cm) and hybrid MG-MI-4 x MI-A-57 (25.37 cm) had the highest mean for head diameter, and the lowest mean was determined in line PL-DI-44 (13.60 cm) and hybrid MG-MI-2 x PL-DI-15 (17.90 cm). Lines with the best general combining abilities were PL-DI-13 for plant height and MI-A-57 for head diameter. Hybrids with the best specific combining abilities were MG-MI-2 x PL-DI-15 for plant height and MG-MI-1 x PL-DI-15 for head diameter.

scholarly journals Effect of Genotype, Growing Year and Planting Date on Agronomic Traits and Chemical Composition in Sunflower (Helianthus annuus L.) Germplasm

2014 ◽  
Vol 2 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Xiang-Min Piao ◽  
Seong Yel Choi ◽  
Young Seok Jang ◽  
Yoon-Sup So ◽  
Jong-Wook Chung ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Helianthus Annuus ◽  
Agronomic Traits ◽  
Planting Date ◽  
Helianthus Annuus L

scholarly journals Development of sunflower hybrids tolerant to tribenuron methyl

Genetika ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. 175-182 ◽  
Author(s):  
Sinisa Jocic ◽  
Goran Malidza ◽  
Sandra Cvejic ◽  
Nada Hladni ◽  
Vladimir Miklic ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Herbicide Resistance ◽  
Chemical Control ◽  
Resistance Breeding ◽  
Inbred Lines ◽  
Cirsium Arvense ◽  
Helianthus Annuus L ◽  
Exact Number ◽  
Number Of Genes ◽  
Tribenuron Methyl

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.

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

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

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

1960 ◽  
Vol 40 (2) ◽  
pp. 375-382 ◽  
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.

scholarly journals Assessing Effect of Marker-Based Improvement of Maize Synthetics on Agronomic Performance, Carotenoid Content, Combining Ability and Heterosis

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1625
Author(s):  
Innocent Iseghohi ◽  
Ayodeji Abe ◽  
Silvestro Meseka ◽  
Wende Mengesha ◽  
Melaku Gedil ◽  
...  
Keyword(s):  
Grain Yield ◽  
Agronomic Traits ◽  
Vitamin A Deficiency ◽  
Inbred Lines ◽  
Provitamin A ◽  
Carotenoid Content ◽  
Agronomic Performance ◽  
Gene Effects ◽  
Additive Gene ◽  
Β Carotene

Vitamin A deficiency (VAD) is a serious problem in sub-Saharan Africa (SSA) and other parts of the world. Understanding the effect of marker-based improvement (MARS) of two maize synthetics (HGA and HGB) representing different heterotic groups on their agronomic performance, carotenoid content, and combining abilities could help identify suitable sources to develop divergent inbred lines for optimizing heterosis. This study involved three selection cycles each of the two synthetics and their nine varietal-cross hybrids together with a released check variety was conducted across four diverse locations in Nigeria in 2018 and 2019. Environment and hybrid effects were significant on grain yield and other agronomic traits as well as provitamin A content and other carotenoids. Genetic improvement per cycle of MARS in the parental synthetics was 15% for provitamin A, 25% for β-carotene and 26% for lutein in HGA and 4% for grain yield, 3% for zeaxanthin and 5% for α-carotene in HGB. Grain yield and agronomic traits of the two maize synthetics were controlled by additive and non-additive gene effects, while provitamin A content and other carotenoids were mainly controlled by additive gene effects. Some selection cycles which were high in grain yield and provitamin A content were identified as potential sources of new and divergent maize inbred lines in maize breeding programs. Some varietal-cross hybrids expressed significant mid-parent heterosis for grain yield and moderate mid-parent heterosis for provitamin A, β-carotene and xanthophylls. These hybrids could be commercialized at reasonable prices to small-scale farmers in rural areas that are most affected by vitamin A deficiency.

EFFECT OF PLANT DENSITY ON THE AGRONOMIC PERFORMANCE OF SUNFLOWER ON DRYLAND

1984 ◽  
Vol 64 (3) ◽  
pp. 599-605 ◽  
Author(s):  
N. W. HOLT ◽  
S. J. CAMPBELL
Keyword(s):  
Helianthus Annuus ◽  
Seed Weight ◽  
Oil Content ◽  
Seed Oil ◽  
Plant Density ◽  
Agronomic Traits ◽  
Agronomic Performance ◽  
Head Diameter ◽  
Helianthus Annuus L ◽  
Days To Maturity

This study investigated the influence of plant density on several agronomic traits of four sunflower (Helianthus annuus L.) cultivars grown at Indian Head and Saskatoon, Saskatchewan in the semiarid prairies. At populations of 40 000–85 000 plants∙ha−1, plant density had no significant effect on seed yield. The increase in percentage oil content with increase in plant density (44.3–45.6%) was small but significant. As plant density was increased, days to flower, height and test weight increased while days to maturity, head diameter and average seed weight decreased. Cultivars × density interactions were generally not significant. Environment (five location-years) had a significant effect on all variables, and environments × cultivar interactions were significant for most of these. Results of this experiment indicated that testing of sunflower lines at several locations in the growing area would be necessary for best assessment but one plant density, suitable to that area, could be used.Key words: Sunflower, plant density, seed, oil, seed size, Helianthus annuus L.

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