FOLIAR APPLICATION OF GIBBERELLIC ACID AND MALEIC HYDRZIDE RELATED WITH YIELD OF HERB AND OIL CONTENT OF SWEET BASIL

Background: Thymus plants are well-known medicinal plants and it is believed that the pharmaceutical and therapeutically properties of these plants are related to their essential oils. The quality and quantity of the essential oils, as a secondary metabolite of aromatic plant, is directly related to the physiological state of the plant. The role of jasmonates in the plant as signal molecules in mediation and up-regulation of plant defense and secondary metabolism processes is well recognized. Objective: With the aim of increasing the performance and stimulating secondary metabolites, this study evaluate the influence of foliar application of MJ on essential oil content and composition of three different Thymus species, whether as an elicitor or an activator. Method: The experiment was arranged in a randomized block design with MJ treatments in four levels (0, 30, 60, 100 mM) and three replications. Results: Compared to the control, essential oil content of all three species increased in all treatment levels. However, the changes of essential oil composition were different. Under MJ treatments, the amount of sesquiterpenes (especially caryophyllene oxide) increased in T. daenensis and T. fedtschenkoi. In addition, the amount of thymol in T. daenensis, thymol, and γ-terpinene in T. vulgaris increased, whereas carvacrol methyl ether in T. daenensis and p-cymene in T. vulgaris decreased. Conclusion: It seems the type of plant species has a specific role in determining the response. There were no interpretable changes between treatment levels.

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Salicylic acid foliar application increases biomass, nutrient assimilation, primary metabolites and essential oil content in Achillea millefolium L

Scientia Horticulturae ◽

10.1016/j.scienta.2020.109436 ◽

2020 ◽

Vol 270 ◽

pp. 109436 ◽

Cited By ~ 2

Author(s):

Pedro Henrique Gorni ◽

Ana Cláudia Pacheco ◽

Adriana Lima Moro ◽

Jonathan Fogaça Albuquerque Silva ◽

Ronaldo Rossetti Moreli ◽

...

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Achillea Millefolium ◽

Primary Metabolites ◽

Nutrient Assimilation

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Water Stress-Induced Alterations in Essential Oil Content and Composition of Sweet Basil

Journal of Essential Oil Research ◽

10.1080/10412905.1992.9698013 ◽

1992 ◽

Vol 4 (1) ◽

pp. 71-75 ◽

Cited By ~ 79

Author(s):

James E. Simon ◽

Debra Reiss-Bubenheim ◽

Robert J. Joly ◽

Denys J. Charles

Keyword(s):

Water Stress ◽

Essential Oil ◽

Oil Content ◽

Sweet Basil

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CROWN DIAMETER, CHILLING, AND GIBBERELLIC ACID INTERACTIONS INFLUENCE GROWTH AND REPRODUCTIVE OF STRAWBERRY CV. FESTIVAL.

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v47i2.614 ◽

2016 ◽

Vol 47 (2) ◽

Author(s):

N. H. Khalil

Keyword(s):

Gibberellic Acid ◽

Cold Storage ◽

Foliar Application ◽

Block Design ◽

Fragaria X Ananassa ◽

Distilled Water ◽

College Of Agriculture ◽

Plant Yield ◽

Crown Diameter ◽

Randomized Complete Block Design

An experiment was conducted in unheated greenhouse units of the Department of Horticulture and Landscape -College of Agriculture- University of Baghdad on the first of October, to observe the effects of amony interaction of crown diameter, chilling, and foliar application of gibberellic acid on vegetative growth, and reproductive in cv. ‘Festival’ of strawberry (Fragaria x ananassa (Duch)). Using randomized Complete Block Design (RCBD), Plants were sorted into two groups according to crown diameter (11-15mm (Cd1) and 6-10 mm (Cd2)), each of them sorted into two groups [Ch0 (without cold storage) and Ch1 (kept in a cold storage for three weeks at 1-2°C), gibberellic acid was sprayed on plants, with concentration treatments included a control (G0) (distilled water), 150 mg. L–1 (G1) and 300 mg. L–1 (G2).The results showed the highest leaf number and Leaf area. Plant-1, (26.33), (29.70 dcm2) in (Cd1.Ch1.GA0) and (Cd1.Ch1. GA1) respectively, Number of stolon increased significantly by GAs application, the highest number were (8.3) in (Cd1.Ch1. GA2). The highest value of the TSS % was produced from the plants under the effect of the treatment (Cd1.Ch1. GA0) (8.5%) and the highest pH were 3.70 from the treatment (Cd2.Ch0.GA2). The results indicated the superiority of treatment (Cd1.Ch0.GA0) in fruit number (22.4), weight (17.77g) and a plant yield (398.2g).

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Effects of topping times on growth and yield of three sweet basil (Ocimum basilicum L.) varieties cultivated in the net house

The Journal of Agriculture and Development ◽

10.52997/jad.3.04.2018 ◽

2018 ◽

Vol 17 (04) ◽

pp. 19-27

Author(s):

Tam T. M. Pham

Keyword(s):

Essential Oil ◽

Oil Content ◽

Growth And Yield ◽

High Yield ◽

Sweet Basil ◽

Randomized Design ◽

Good Taste ◽

Completely Randomized Design ◽

Basil Oil ◽

Development Center

The study was carried out from June to December, 2014. The objective of this study was to determine a suitable topping time for sweet basil variety grown in the net house at Research and Development Center for Hi-Tech Agriculture Ho Chi Minh City. A two-factorial experiment was designed by the CRD (Completely Randomized Design) with three replications. Factor A consisted of three sweet basil varieties (TN12 as Control, TN33, and TN39) and the factor B was the topping times including untopping (the control), the topping when sweet basil at the four-leaves, at the six-leaves and at the eight-leaves period. The results showed that variety TN39 was suitable for extracting basil-oil because of the highest yield (3,365.4 kg/1,000 m2) and high total essential oil content (0.25%). Variety TN12 could be grown for fresh-eating spicy. The variety TN12 resulted in the fairly high yield (1,955.4 kg/1,000 m2) and total essential oil content (0.20%) with good taste. Topping the basil plant at the six-leaves period reached the highest yield of 2,172.3 kg/1,000 m2.

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PHYSIOLOGICAL CHANGES ASSOCIATED WITH LEAF SENESCENCE IN EASTER LILIES

HortScience ◽

10.21273/hortsci.30.2.189a ◽

1995 ◽

Vol 30 (2) ◽

pp. 189a-189

Author(s):

Rosanne E. Franco ◽

Susan S. Han

Keyword(s):

Gibberellic Acid ◽

Leaf Senescence ◽

Growth Regulators ◽

Cold Storage ◽

Foliar Application ◽

Lilium Longiflorum ◽

Continuous Treatment ◽

Physiological Effects ◽

Easter Lily ◽

The Individual

Senescence of lower leaves of Easter lilies (Lilium longiflorum Thunb.) was previously shown to be delayed with application of the growth regulators, gibberellic acid (GA3) and benzyladenine (BA). This study was done to determine the physiological effects of GA3 and BA in relation to the delay of leaf senescence. Foliar application with 500 ppm BA or GA3 delayed chlorosis and lowered respiration rate in Easter lily leaves. A combination of 500 ppm BA and 500 ppm GA3 was more effective than the individual application of each. Gibberellic acid, BA, or their combination before cold storage resulted in delayed chlorosis and lowered respiration following removal from cold storage. Treatment with growth regulators after cold storage was less effective. Senescence of leaves was not associated with ethylene since ethylene production by leaves was undetectable by gas chromatograph. In addition, pulsing or continuous treatment with silver thiosulphate (STS), an inhibitor of ethylene synthesis, did not delay foliar chlorosis. Analysis of carbohydrate levels in Easter lily leaves treated with GA3, BA, or their combination may contribute to the understanding of the physiological effects of these two growth regulators.

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