Role of Plant Growth Regulators in Vegetable Production: A Review

Kaur, Parneet; Mal, Dipika; Sheokand, A.; weta, Sh; Singh, Lalit Kumar; Datta, Samar K.

doi:10.20546/ijcmas.2018.706.258

Cited by 12 publications

(11 citation statements)

References 13 publications

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“…Compared to tomatoes without vibration treatment, vibratortreated tomatoes ripened earlier and had greater yield. Plant growth regulator (PGR), which chemically induce fruit growth, are another widely used method in greenhouse tomato production [6,7]. However, both vibrator and PGR treatments have high labor costs and produce tomatoes with an unstable yield and quality.…”

Section: Introductionmentioning

confidence: 99%

Bumblebee Pollination Enhances Yield and Flavor of Tomato in Gobi Desert Greenhouses

et al. 2022

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Bumblebee pollination is crucial to the production of tomato in protected cultivation. Both tomato yield and flavor play important roles in attracting attentions from growers and consumers. Compared with yield, much less work has been conducted to investigate whether and how pollination methods affect tomato flavor. In this study, the effects of bumblebee pollination, vibrator treatment, and plant growth regulator (PGR) treatment on tomato yield and flavor were tested in Gobi Desert greenhouses. Compared with vibrator or PGR treatments, bumblebee pollinated tomato had higher and more stable fruit set, heavier fruit weight, and more seed. We also found that the seed quantity positively correlated with fruit weight in both bumblebee pollinated, and vibrator treated tomato, but not in PGR treated tomato. Besides enhancing yield, bumblebee pollination improved tomato flavor. Bumblebee pollinated tomato fruits contained more fructose and glucose, but less sucrose, citric acid, and malic acid. Furthermore, the volatile organic compounds of bumblebee pollinated tomato were distinctive with vibrator or PGR treated tomato, and more consumer liking related compounds were identified in bumblebee pollinated tomato. Our findings provide new insights into the contributions of bee pollinator towards improving crop yield and quality, emphasizing the importance of bumblebee for tomato pollination.

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Section: Introductionmentioning

confidence: 99%

Bumblebee Pollination Enhances Yield and Flavor of Tomato in Gobi Desert Greenhouses

et al. 2022

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“…These chemical substances play an important role in different physiological processes related to plant growth and development (Kaur et al, 2018). For example, auxin, gibberellin and cytokinin are growth promoters and directly act on the plant apical dominance, stimulating cell division and differentiation as well as cell stretching and bud formation and preventing chlorophyll degradation, inducing flowering and controlling seed formation (Giannakoula, Ilias, Maksimovic, Maksimovic, & Zivanovic, 2012;Kaur et al, 2018). Exogenous application may reflect on the endogenous levels, influencing the biosynthesis, catabolism and conjugation of these substances (Talaat, Khattab, & Ahmed, 2014).…”

Section: Introductionmentioning

confidence: 99%

Foliar application of plant growth regulators changes the physiological quality of crambe seeds

Boiago

Coelho

Fernandes

et al. 2019

Acta Sci. Biol. Sci.

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The application of plant growth regulators can manipulate the development of cultivated plants, and their physiological effects may be reflected in the physiological quality of the seeds. This study evaluated the effects of plant growth regulators (PGR) on the physiological quality of crambe seeds produced in the 2014 and 2015 harvests. During crop development, we applied two foliar sprayings of the following treatments: 1) control treatment with distilled water; 2) indole-3-acetic acid 100 mg L-1 (IAA); 3) 3-gibberellic acid P.A. 100 mg L-1 (GA3); 4) commercial PGR Stimulate® 6 mL L-1. The seeds were harvested and evaluated for water content, germination percentage and germination speed index (GSI), electrical conductivity and concentrations of leached Ca, Mg and K ions. Means were compared by Tukey´s and Dunnett tests (p<0.05). Applying Stimulate® increased the germination percentage and the germination speed index, while IAA application showed an opposite effect, increasing the electrical conductivity of crambe seeds. Calcium leaching decreased with IAA application, and all regulators reduced K leaching. We therefore infer that the application of plant growth regulators influences the physiological quality of crambe seeds.

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“…During the selected experiment, a mixture of plant growth regulators (S-abscisic acid and gibberellic acid) was tested. Although S-abscisic acid (S-ABA) can have an inhibitory growth effect, gibberellins are known to stimulate cell elongation (Basra, 2000;Fletcher et al, 2000;Kaur et al, 2018). Accordingly, S-ABA and gibberellic acids arguably belong to different classes of plant growth regulators.…”

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confidence: 99%

Synergy Assessment for Plant Growth by Independent Joint Action Theory

Huang¹,

Falco²

2021

horts

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Calculating the predicted biological efficacy of a mixture and determining the significance of the difference between the predicted efficacy and the measured efficacy of that mixture are fundamental when assessing the synergy of mixtures. The Independent Joint Action theory and Bliss’s formula are well-known and widely accepted for predicting pesticide mixture effects that are expressed in terms of percent mortality. Bliss’s formula, however, is not applicable to growth-affecting components, such as plant growth regulators. Therefore, there is an unmet need of critical importance: an appropriate method for assessing synergy of growth-affecting mixtures needs to be identified within the scientific community. The formula, G(1 + 2..n) = G1G2…Gn/(GCTL)n−1, which was derived from the Independent Joint Action theory, is presented for calculating the predicted efficacy for mixtures of growth-affecting components that either promote or inhibit growth. Its application is demonstrated by analyzing data from a greenhouse assay in which a mixture of S-abscisic acid and gibberellic acid was used to promote the growth of corn seedlings.

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Role of Plant Growth Regulators in Vegetable Production: A Review

Cited by 12 publications

References 13 publications

Bumblebee Pollination Enhances Yield and Flavor of Tomato in Gobi Desert Greenhouses

Bumblebee Pollination Enhances Yield and Flavor of Tomato in Gobi Desert Greenhouses

Foliar application of plant growth regulators changes the physiological quality of crambe seeds

Synergy Assessment for Plant Growth by Independent Joint Action Theory

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