Use of Plant Growth Regulators for Improving Fruit  Production in Sub Tropical Crops

Kumari, Shilpy; Bakshi, Parshant; Sharma, Akash; Wali, V.K.; Jasrotia, Amit; Kour, Simrandeep

doi:10.20546/ijcmas.2018.703.077

Cited by 20 publications

(18 citation statements)

References 10 publications

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“…Plant growth regulators are organic substances produced naturally in higher plants, controlling growth or other physiological functions at a site remote from its place of production and active in minute amounts [1]. They play a role in affecting growth, yield and quality of crops [2,3].…”

Section: Introductionmentioning

confidence: 99%

Paclobutrazol as a plant growth regulator

Desta

Amare

2021

Chem. Biol. Technol. Agric.

177

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Plant growth regulators are chemical substances which govern all the factors of development and growth within plants. The application of plant growth regulators to crops modifies hormonal balance and growth leading to increased yield, enhanced crop tolerance against abiotic stress and improved physiological trait of crops. Paclobutrazol (PBZ) [(2RS, 3RS)-1-(4-chlorophenyl)- 4, 4-dimethyl-2-(1H-1, 2, 4-trizol-1-yl)-pentan-3-ol], is one of the members of triazole family having growth regulating property. The growth regulating properties of PBZ are mediated by changes in the levels of important plant hormones including the gibberellins (GAs), abscisic acid (ABA) and cytokinins (CK). PBZ affects the isoprenoid pathway, and alters the levels of plant hormones by inhibiting gibberellin synthesis and increasing cytokinins level and consequent reduction in stem elongation. When gibberellins synthesis is inhibited, more precursors in the terpenoid pathway accumulate and that resulted in the production of abscisic acid. PBZ is more effective when applied to the growing media and application on the growing medium would give longer absorption time and more absorption of active ingredient than foliar spray. The application of PBZ to crops is important in reducing plant height to prevent lodging and in increasing number and weight of fruits per tree, in improving the fruit quality in terms of increases in carbohydrates, TSS, TSS/TA and decreases acidity. It further reduces evapo-transpiration and decreases plant moisture stress by enhancing the relative water content of leaf area and develops resistance in the plants against biotic and abiotic stresses. In addition, it acts as highly active systemic fungicide and used against several economically important fungal diseases. In this review, the current knowledge and possible applications of PBZ, which can be used to improve the growth, yield and quality of crops, have been reviewed and discussed. The role of PBZ to mitigate the harmful effects of environmental stresses in crops is also examined. Moreover, various biochemical and physiological processes leading to improved crop production under the effect of PBZ are discoursed in detail.

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Section: Introductionmentioning

confidence: 99%

Paclobutrazol as a plant growth regulator

Desta

Amare

2021

Chem. Biol. Technol. Agric.

177

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“…However, the hormones help in translocation of raw materials and regulate the normal physiological process in plants. Imbalance of hormones in the plant altered normal physiological Application of plant growth regulators is an integral part of modern crop production practice for increasing production of quality fruits (Kumari et al, 2018). Plant growth regulators like NAA, IAA, IBA, 2,4-D, 2,4,5-T; GA, TIBA and Ethephon are widely used for improving the flowering, fruit set, size and quality of fruit as well as yield.…”

Section: Introductionmentioning

confidence: 99%

Advancement and efficacy of plant growth regulators in Ber (Ziziphus mauritiana Lamk) - A review

Singh¹,

Sharma²

2020

JANS

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Ber (Ziziphus maurtiana) is an important minor fruit crop of India. Over the years the crop is now widely domesticated and commercial orchards of Ber are now available. With wide commercialization, many physiological problems, i.e. flowers and fruit drop, embryo abortion, poor flowering and fruit setting, abnormal and small size fruits etc. were observed which cause huge loss to the growers. In order to minimize these problems, over the years many experiments and advancement have been done, and among them, usage of plant growth regulators is one of the most adopted methods and is utilized to improve flowering fruiting and yield with improved fruit quality. The current review discusses the role of different plant growth regulators and how they influence each fruit character. This information could be useful to the researchers in planning further advance research in this aspect and for the commercial growers to decide the proper treatments to mitigate the problems.

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“…The balance of internal hormones plays a main important role in nutrients distribution's in plant's organs and affects bud longevity. It has been confirmed that fruit drop is due to internal content of auxin by external application 2,4-D or NAA, where the transport of auxins by plant stays for a long time without any effect of ethylene [2], and it's found that gibberellic acid delays ripening and aging of fruits [3].…”

Section: Introductionmentioning

confidence: 90%

Sweet Cherry (<i>Prunus avium</i> L.) Fruit Drop Reduction by Plant Growth Regulators (Naphthalene Acetic Acid NAA and Gibberellic Acid GA<sub>3</sub>)

Askarieh¹,

Suleiman²,

tawakalna³

2021

AJPS

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This study was conducted during 2019/2020 on sweet cherry trees (Prunus Avium L.) (Bing and Hardy Giant) cultivar planted at Sergaya-Al_Zabadani area of Rural Damascus, to reduce fruit drop of sweet cherry. The experiment included 4 foliar applications: T1: control, T2: GA 3 (100 ppm), T3: NAA (20 ppm), T4: (100 ppm GA 3 + 20 ppm NAA). Fruit set and fruit drop percentage, fruiting factor, and yield were recorded. The results showed that treatment with (100 ppm GA 3 + 20 ppm NAA) recorded higher fruit set percentage (73.81% and 75.62%), and fruiting factor (48.38% and 50.04%) respectively; In addition to fruit yield (40.19 and 41.21 kg/tree) for both cultivars, compared to the control (9.13, 6.60 kg/tree). Therefore, it can be concluded that GA 3 + NAA treatment reduced Sweet cherry fruit drop better than other treatments, where fruit drop percentage didn't exceed (63.11% and 62.01%) in both cultivars (Bing and Hardy Giant) respectively, compared to the control (80.92% and 80.64%).

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Use of Plant Growth Regulators for Improving Fruit Production in Sub Tropical Crops

Cited by 20 publications

References 10 publications

Paclobutrazol as a plant growth regulator

Paclobutrazol as a plant growth regulator

Advancement and efficacy of plant growth regulators in Ber (Ziziphus mauritiana Lamk) - A review

Sweet Cherry (<i>Prunus avium</i> L.) Fruit Drop Reduction by Plant Growth Regulators (Naphthalene Acetic Acid NAA and Gibberellic Acid GA<sub>3</sub>)

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Use of Plant Growth Regulators for Improving Fruit Production in Sub Tropical Crops

Cited by 20 publications

References 10 publications

Paclobutrazol as a plant growth regulator

Paclobutrazol as a plant growth regulator

Advancement and efficacy of plant growth regulators in Ber (Ziziphus mauritiana Lamk) - A review

Sweet Cherry (&lt;i&gt;Prunus avium&lt;/i&gt; L.) Fruit Drop Reduction by Plant Growth Regulators (Naphthalene Acetic Acid NAA and Gibberellic Acid GA&lt;sub&gt;3&lt;/sub&gt;)

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Product

Resources

About

Sweet Cherry (<i>Prunus avium</i> L.) Fruit Drop Reduction by Plant Growth Regulators (Naphthalene Acetic Acid NAA and Gibberellic Acid GA<sub>3</sub>)