scholarly journals Response of Sunflower (Helianthus annuus L.) Leaf Surface Defenses to Exogenous Methyl Jasmonate

PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e37191 ◽  
Author(s):  
Heather C. Rowe ◽  
Dae-kyun Ro ◽  
Loren H. Rieseberg
Keyword(s):  
Methyl Jasmonate ◽  
Helianthus Annuus ◽  
Leaf Surface ◽  
Helianthus Annuus L

Redox-related peroxidative responses evoked by methyl-jasmonate in axenically cultured aeroponic sunflower ( Helianthus annuus L . ) seedling roots

PROTOPLASMA ◽  
2003 ◽  
Vol 221 (1-2) ◽  
pp. 79-91 ◽  
Author(s):  
I. Garrido ◽  
F. Espinosa ◽  
M. C. C�rdoba-Pedregosa ◽  
J. A. Gonz�lez-Reyes ◽  
M. C. Alvarez-Tinaut
Keyword(s):  
Methyl Jasmonate ◽  
Helianthus Annuus ◽  
Helianthus Annuus L ◽  
Seedling Roots

scholarly journals First Report of Variegated Caper Bug (Stenozygum coloratum Klug, 1845) on Sunflower (Helianthus annuus L.) in Syria

2021 ◽  
Vol 39 (3) ◽  
pp. 228-230
Author(s):  
Ali Yassine Ali ◽  
Keyword(s):  
Host Plant ◽  
Helianthus Annuus ◽  
Leaf Surface ◽  
Morphological Characteristics ◽  
Plant Host ◽  
New Host ◽  
Helianthus Annuus L ◽  
White Spots ◽  
Main Host ◽  
Syrian Coast

The caper plant is the main host for the variegated caper bug Stenozygum coloratum (Klug, 1845) along the Syrian coast. The plants loose most of their leaves due to high infestation with this bug. The different stages of this bug were observed to feed on the vegetative parts of sunflower, Helianthus annuus L., in high numbers (75 to 120 bugs/plant). The symptoms of infestation were white spots on the leaf surface. This report includes information on morphological characteristics of the bug, as well as plant hosts, and reporting sunflower as a new plant host for this insect. Keywords: Stenozygum coloratum, Sunflower, Helianthus annuus, New host plant. Syria

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

scholarly journals TEMPERATURE - GERMINATION RESPONSES OF SUNFLOWER (Helianthus annuus L.) GENOTYPES / GERMINACION COMO REACCION A LA TEMPERATURA EN LOS GENOTIPOS DEL GIRASOL (Helianthus annuus L.) / GERMINATION - RÉACTION À LA TEMPÉRATURE DANS LES GÉNOTYPES DE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2000 ◽  
Vol 23 (33) ◽  
pp. 97-104
Author(s):  
F.M. Khalifa ◽  
A.A. Schneiter ◽  
E.I. El Tayeb
Keyword(s):  
Seed Germination ◽  
Helianthus Annuus ◽  
Maximum Rate ◽  
Germination Rate ◽  
Thermal Time ◽  
Large Temperature ◽  
Climatic Zones ◽  
Helianthus Annuus L ◽  
Wide Range ◽  
Cardinal Temperature

SUMMARY Seed germination of six sunflower (Helianthus annuus L.) hybrids was investigated across a range of eleven constant temperatures between 5°C and 45°C. Large temperature differences in germination rate 1/t (d-1), cardinal temperature (°C) and thermal time θ (°cd) were observed among hybrids. Base temperatures (Tb) varied between 3.3°C and 6.7°C whereas maximum germination temperatures (Tm) varied between 41.7°C and 48.9°C. Final germination fraction was attained at 15°C - 25°C whereas the maximum rate of germination was attained at 30.4°C - 35.6°C. The maximum germination rate of hybrid USDA 894, the cultivar with the slowest germination rate, was only 50% of that of hybrid EX 47. The low Tb and high Tm of sunflower appear to be one of the factors which explain the successful adaptation of sunflower to a wide range of temperature. These findings are discussed in relation to the origin of the crop and its wide adaptations in diverse habitats and climatic zones.

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