Influence of Biostimulants and Plant Growth Regulators onPhysiological and Biochemical Traits in Tomato (Lycopersicon esculentum Mill.)

2018 ◽  
Vol 105 (4-6) ◽  
pp. 225
Author(s):  
R. Kavipriya ◽  
P. Boominathan
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Biochemical Traits ◽  
Lycopersicon Esculentum Mill

scholarly journals Induction of Flowering and Fruiting in Plantlets of Tomato (Lycopersicon esculentum Mill.)

2019 ◽  
Vol 2 (2) ◽  
pp. 57-63
Author(s):  
Wina dian Savitri ◽  
Florentinus W.N. Florentinus W.N. Nurtyandi ◽  
Popy Hartatie Hardjo
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
In Vitro Flowering ◽  
Lycopersicon Esculentum Mill ◽  
Hybrid Seeds ◽  
Self Fertilization ◽  
Do So

Tomato (Lycopersicon esculentum Mill.) is used as vegetable or fruit by people around the world. The effective and efficient propagation of tomato is needed due to the high demand, while its availability is not enough to meet the consumer demand. In vitro flowering and fruiting is useful in order to produce high quality hybrid seeds. Also, this can be produced in all seasons. Beside, this technique is beneficial to improve genetic diversity in tomato. In addition, tomato has natures that make it compatible as a plant model. This experiment intended to find the best combination of plant growth regulators or plant retardants  to induce flower and fruit from tomato plantlets. The results will be beneficial to overcome self-fertilization in tomato, as well as to promote higher genetic biodiversity in tomato. To do so, some plant growth regulators (6-Benzylaminopurine (BAP), Indoleacetic acid (IAA), and Gibberellin (GA3)) and retardants (Ancymidol and Paclobutrazol) were used to find the best combination in inducing in vitro flowering and fruiting. The results showed that 1 mg.L-1 BAP was the best candidate plant growth regulator to produce the in vitro flowers and fruits from the treated plantlets.

scholarly journals Effect of humic acid and naphthalene acetic acid on vegetative growth and fruit quality of tomato plants Lycopersicon esculentum

2020 ◽  
Vol 15 (1) ◽  
pp. 30-39
Author(s):  
Ahmad Ali Suliman ◽  
Alexandr Gennadevich Abramov ◽  
Anna Alekseevna Shalamova ◽  
Antar Mahmoud Badran
Keyword(s):  
Acetic Acid ◽  
Humic Acid ◽  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Quality ◽  
Carotenoid Content ◽  
Naphthalene Acetic Acid ◽  
Tomato Plants

The study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants (Lycopersicon esculentum). A specific experiment has been carried out to study the effect of plant growth regulators Hemo bles (humic acid, 850g/kg) at applied doses (250, 500 and 700 ppm) and Magictone (naphthalene acetic acid and naphthalene acetamide, 5…12.5 g/kg) at applied doses (250, 500 and 700 ppm) on growth and physiological characteristics of tomato plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles and Magictone were applied three times (spraying on plants at 30 days after planting (DAP), 60 DAP and 90 DAP). The obtained results showed that, applying Ener-850 humic acid caused the highest significant plant height (264.6 cm), number of leaves/plant (45), stem diameter (1.9 cm) and fruit weight (137 g) during the two seasons. In addition, applying Magictone resulted in the highest significant flower number (48.1), fruit number (35.1) and flower clusters number in the plant (13.6). Additionally, humic acid significantly increased dry weight (75.1 g) of arial parts with improving of tomato fruit quality via enhancing the concentrations of ascorbic acid, level of vitamin C and carotenoid content. The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.

Floral mutants in tomato: development, physiology, and evolutionary implications

1992 ◽  
Vol 70 (4) ◽  
pp. 701-707 ◽  
Author(s):  
V. K. Sawhney
Keyword(s):  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Key Words ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Experimental Studies ◽  
Flower Morphology ◽  
Temperature Conditions ◽  
Stamen Primordia ◽  
Endogenous Plant

Developmental and experimental studies on two floral mutants of tomato (Lycopersicon esculentum) are presented. These studies have provided insights into the gene-regulated physiological, biochemical, and structural processes that affect flower morphology. In the stamenless-2 (sl-2/sl-2) mutant, plant growth regulators and temperature conditions affect the development of stamens, and these effects are mediated through changes in proteins, including some specific enzymes. Stamen primordia can be induced to form either normal stamens or carpels, which suggests the possibility of another mechanism by which unisexuality may have evolved. In the solanifolia (sf/sf) mutant, the nonfusion of stamens and carpels is associated with an increase in the size of the apex and the number of organs. The fusion of these organs is also affected by plant growth regulators and temperature conditions. It is proposed that during the course of evolution plants with small floral apices that produce few stamens and carpels were selected and that the reduction in apex size was achieved by mutations that affect endogenous plant growth regulators. Key words: floral mutants, Lycopersicon esculentum, plant growth regulators, temperature, tomato, evolution.

scholarly journals Influence of growth regulators on plant regeneration in tomato

2011 ◽  
Vol 32 (No. 3) ◽  
pp. 118-122
Author(s):  
J. Gubiš ◽  
Z. Lajchová ◽  
L. Klčová ◽  
Z. Jureková
Keyword(s):  
Plant Regeneration ◽  
Lycopersicon Esculentum ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
In Vitro Regeneration ◽  
Ms Medium ◽  
Explant Type ◽  
Regeneration Capacity

We studied the effect of different plant growth regulators on in vitro regeneration and plant growth of three cultivars of tomato (Lycopersicon esculentum Mill.) from explants derived from hypocotyls and cotyledons of aseptically grown seedlings. The regeneration capacity was significantly influenced by cultivar and explant type. The highest number of shoots regenerated in both types of explants was recorded on MS medium supplemented with 1.0 mg/dm<sup>3</sup> zeatin and 0.1 mg/dm<sup>3</sup> IAA. The cultivar UC 82 showed the best regeneration capacity on all types of used media. The most responsive explants were hypocotyls with 90&ndash;92% regeneration in dependence on the used cultivars and mean production from 0.18 to 0.38 shoots per explant. &nbsp;

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