scholarly journals The Influence of Flower Head Order and Gibberellic Acid Treatment on the Hydroxycinnamic Acid and Luteolin Derivatives Content in Globe Artichoke Cultivars

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1813
Author(s):  
María José Giménez ◽  
Marina Giménez-Berenguer ◽  
María Emma García-Pastor ◽  
Joaquín Parra ◽  
Pedro Javier Zapata ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Acid Content ◽  
Acid Treatment ◽  
Bioactive Compound ◽  
Hydroxycinnamic Acid ◽  
Flower Head ◽  
Globe Artichoke ◽  
Rp Hplc ◽  
Head Weight ◽  
Gibberellic Acid Treatment

Flower head orders and the use of GA3 (gibberellic acid) treatment could be two influencing factors determining the bioactive compound levels in artichoke, but little to no information is available about their effects. In this study, we have therefore evaluated the influence of these factors on the hydroxycinnamic acid and luteolin derivative levels in three categories of artichoke: Seed-propagated open-pollinated cultivars; vegetatively propagated cultivars; and seed-propagated hybrids. The hydroxycinnamic acids and luteolin derivatives were quantified by RP-HPLC-DAD. The average flower head weight was the lowest in tertiary heads and GA3-treated artichokes, followed by secondary and main heads. Moreover, the hydroxycinnamic acid and luteolin derivatives levels were significantly higher in tertiary heads than in secondary or main heads. In addition, the GA3 treatment significantly reduced the hydroxycinnamic acid content and, in contrast, improved luteolin derivatives levels. These effects depended on the flower head order and cultivar. Knowledge of the effects of flower head order and GA3 treatment is therefore key in order to achieve the greatest health-benefits from artichoke consumption.

The Bolting and Flowering of Chondrilla Juncea L. as Influenced by Temperature and Photoperiod

1968 ◽  
Vol 21 (5) ◽  
pp. 883 ◽  
Author(s):  
O H Caso ◽  
NP Kefford
Keyword(s):  
Gibberellic Acid ◽  
Acid Treatment ◽  
Stem Elongation ◽  
Controlled Conditions ◽  
Effects Of Temperature ◽  
Bolting And Flowering ◽  
Gibberellic Acid Treatment ◽  
Chondrilla Juncea

O. juncea plants were grown in a variety of controlled conditions to determine effects of temperature, photoperiod, and gibberellic acid treatment on stem elongation (bolting) and flowering.

Dormancy regulation: hormonal interaction in maple (Acer platanoides)

1969 ◽  
Vol 47 (7) ◽  
pp. 1165-1169 ◽  
Author(s):  
A. E. DeMaggio ◽  
J. A. Freeberg
Keyword(s):  
Abscisic Acid ◽  
Gibberellic Acid ◽  
Acid Treatment ◽  
Acer Platanoides ◽  
Sterile Culture ◽  
Hormonal Interaction ◽  
Bud Growth ◽  
Short Days ◽  
Gibberellic Acid Treatment

Whole buds and excised apices (bud scales removed) from dormant trees of Acer platanoides grow in sterile culture in long days but have different responses to gibberellic acid treatment. Bud growth is stimulated by the hormone in long and short days but apices are unaffected. Abscisic acid inhibits not only gibberellin-stimulated bud growth but also the photoperiodically stimulated growth of apices.

Dormancy responses to post-harvest application of growth regulators in Dioscorea species. 2. Dormancy responses in ware tubers of D. alata and D. esculenta

1984 ◽  
Vol 102 (2) ◽  
pp. 433-436 ◽  
Author(s):  
Lynda D. Wickham ◽  
H. C. Passam ◽  
L. A. Wilson
Keyword(s):  
Gibberellic Acid ◽  
Growth Regulators ◽  
Acid Treatment ◽  
Storage Time ◽  
Storage Life ◽  
Dioscorea Alata ◽  
Dormant Period ◽  
Post Harvest ◽  
Dioscorea Species ◽  
Gibberellic Acid Treatment

SummaryThe effects of post-harvest application of gibberellic acid on dormancy of tubers of Dioscorea alata and D. esculenta were examined. In both species, gibberellic acid extended the dormancy of immature and mature tubers but when GA3 application was made after storage for varying lengths of time, there was a decreasing effect with increased storage time. Dormancy was also reinduced in germinating tubers, that had gone through a normal dormant period, as a result of gibberellic acid treatment. A possible mechanism of dormancy in tropical yams is discussed. It is concluded that use of gibberellic acid as a means of extending the storage life of yam tubers by post-harvest application is a distinct possibility.

Suitable gibberellic acid treatment for double-purpose rice (Oryza sativa L.) varieties at different harvest times

2016 ◽  
Vol 193 ◽  
pp. 178-185 ◽  
Author(s):  
Chenfei Dong ◽  
Nengxiang Xu ◽  
Chenglong Ding ◽  
Hongru Gu ◽  
Wenjie Zhang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Gibberellic Acid ◽  
Acid Treatment ◽  
Oryza Sativa L ◽  
Gibberellic Acid Treatment

scholarly journals Effect of Seed Scarification and Gibberellic Acid Treatment on Seedling Emergence of Sky-Blue Lupine (Lupinus diffusus)

2003 ◽  
Vol 21 (2) ◽  
pp. 64-67
Author(s):  
Bijan Dehgan ◽  
Jeffrey G Norcini ◽  
Steven M. Kabat ◽  
Hector E. Pérez
Keyword(s):  
Gibberellic Acid ◽  
Acid Treatment ◽  
Room Temperature ◽  
Seedling Emergence ◽  
Hot Water ◽  
Severely Injured ◽  
Viable Seed ◽  
Seed Scarification ◽  
Concentrated Sulfuric Acid ◽  
Gibberellic Acid Treatment

Abstract The efficacy of various scarification treatments and gibberellic acid (GA3) treatment on seedling emergence of Lupinus diffusus Nutt. (sky-blue lupine) was evaluated. Seed scarified in concentrated sulfuric acid for 90 min followed by immersion in water for 24 hr resulted in the best emergence of viable seed (≈ 41%). Mechanical scarification with sandpaper for up to 30 min did not improve seedling emergence. Immersing seed in 90C (194F) water which was then allowed to cool for 24 hr apparently killed or severely injured the embryos as no seedlings emerged from seeds treated with hot water. There was only 5% seedling emergence for nonscarified seed that were soaked in water at room temperature for 24 hr. Emergence was not improved by soaking scarified seed in 1000 mg/liter (ppm) GA3 for 24 hr prior to sowing the seeds.

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