scholarly journals Ray-floretless sunflower in the interspecific derivatives of the cross Helianthus annuus L. × H. divaricatus

Helia ◽  
2008 ◽  
Vol 31 (49) ◽  
pp. 45-50 ◽  
Author(s):  
M. Sujatha
Keyword(s):  
Helianthus Annuus ◽  
Helianthus Annuus L ◽  
Interspecific Derivatives ◽  
The Cross ◽  
Derivatives Of

scholarly journals Genetic analysis of yield and yield related traits in sunflower (Helianthus annuus L.) under well-watered and water-stressed conditions

Genetika ◽  
2014 ◽  
Vol 46 (2) ◽  
pp. 369-384 ◽  
Author(s):  
Reza Darvishzadeh ◽  
Hatami Maleki ◽  
Alireza Pirzad ◽  
Maryam Kholghi ◽  
Abdollahi Mandoulakani
Keyword(s):  
Drought Stress ◽  
Genetic Analysis ◽  
Helianthus Annuus ◽  
Seed Yield ◽  
Combining Ability ◽  
Block Design ◽  
Stressed Condition ◽  
Head Diameter ◽  
Helianthus Annuus L ◽  
The Cross

Drought stress is one of the factors which influence sunflower (Helianthus annuus L.) production. Breeding for tolerance to drought stress has become a major focus. In the present investigation, combining ability, gene action and genetic analysis of several characteristics were studied in six pure lines of sunflower and their 15 hybrids. The materials were evaluated in two separate experiments using a randomized complete block design (RCBD) with three replications in two states (well-watered and water-stressed) under controlled conditions. Comparison of mean values exhibited that under water- stressed condition the average performance of sunflower genotypes were decreased for all studied traits. In well-watered condition the highest value for seed yield per plant (SY) was observed in the cross 'LR4?LR25', whereas in water-stressed condition the highest value for this trait was observed in the hybrid 'C104?LR25'. Combining ability analysis revealed that most of agronomical traits such as head diameter, number of achene per head, head weight and seed yield inherited differently in stressed and non-stressed conditions. In water-stressed conditions, the non-additive effects played a more important role for controlling the number of achene per head (NA), seed yield per plant (SY), head diameter (HD), and days from flowering to physiological maturity (DFM) than additive. Based on results yield improvement for water-stressed conditions requires selection under drought conditions. In well-watered condition, the cross 'LR4?C10' showed the best SCA value for seed yield per plant (SY). In water-stressed conditions, 'RHA266?C100' had the highest SCA for seed yield per plant (SY) and number of achene (NA) per head.

scholarly journals C15 Functionalized Derivatives of Ent-Kaur-16-En-19-Oic Acid: Isolation from the Sunflower Helianthus Annuus L. and Synthesis

2010 ◽  
Vol 5 (1) ◽  
pp. 106-108
Author(s):  
Marina Grinco ◽  
Olga Chetraru ◽  
Veaceslav Kulciţki ◽  
Alic Barba ◽  
Alexandr Boico ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Helianthus Annuus L ◽  
Derivatives Of

The known diterpenic ester – 15α-angeloyl-ent-kaur-16-en-19-oic (angeloylgrandifl oric) acid has been isolated from the dry wastes of Helianthus annuus L. The synthesis of 15α-hydroxy- and 15-oxo-ent-kaur-16-en-19- oic acids starting from ent-kaur-16-en-19-oic acid has been performed.

STUDIES ON SUNFLOWER RUST: III. OCCURRENCE, DISTRIBUTION, AND SIGNIFICANCE OF RACES OF PUCCINIA HELIANTHI SCHW.

1962 ◽  
Vol 40 (11) ◽  
pp. 1449-1458 ◽  
Author(s):  
W. E. Sackston
Keyword(s):  
Helianthus Annuus ◽  
Rust Resistance ◽  
Resistance Factors ◽  
Helianthus Annuus L ◽  
Puccinia Helianthi ◽  
Race 1 ◽  
Differential Varieties ◽  
Derivatives Of

Discovery of rust-resistant sunflower seedlings in 1952 made it possible to distinguish races of Puccinia helianthi Schw. occurring on cultivated sunflowers (Helianthus annuus L.). The races isolated in 1954 helped to identify two discrete factors for resistance derived from wild annual sunflowers from the Renner, Texas, area. The four races which theoretically could be distinguished with two resistance factors have all been found in Manitoba. Collections from other provinces, countries, and continents, with few exceptions were classified on the Canadian differentials as race 1. Differences among isolates of race 1 were observed on resistant derivatives of H. argophyllus T. and G. Use of the four rust races described made it possible to identify different factors for resistance in sister selections of sunflowers with identical rust reactions in the field, and to demonstrate that the original rust resistant accessions 953-88 and 953-102 each contained at least two distinct resistance factors. Use of the races has also made it possible to recognize the existence in H. argophyllus of factors for rust resistance which appear to differ from those in the Canadian differential varieties.

THE PROBLEM OF SAFE SUNFLOWER (Helianthus annuus L.) USE FOR FOOD AND FODDER PURPOSES (review)

2018 ◽  
Vol 53 (3) ◽  
pp. 485-498
Author(s):  
G.P. Kononenko ◽  
◽  
M.I. Ustyuzhanina ◽  
A.A. Burkin ◽  
◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Helianthus Annuus L

Sunflowers (Helianthus annuus L.) on Top of a Constructed Wetland as an Engineered Ecosystem to Clean Sewage Onsite

2014 ◽  
Vol 2014 (2) ◽  
pp. 83-91
Author(s):  
Alfredo Garcia-Perez ◽  
◽  
Mark Harrison ◽  
Bill Grant ◽  
◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Constructed Wetland ◽  
Helianthus Annuus L
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