Advancing Alphonso mango harvest season in lateritic rocky soils of Konkan region through manipulation in time of paclobutrazol application

Burondkar, M. M.; Rajan, Shailendra; Upreti, K. K.; Reddy, Y. T. N.; Singh, V. K.; Sabale, SS; Naik, M. M.; Nigade, P. M.; Saxena, Pooja

doi:10.37855/jah.2013.v15i03.34

Cited by 15 publications

(12 citation statements)

References 17 publications

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“…Manila, Sensation and Kent the weight of fruit was not affected by PBZ treatments (Rebolledo-Martínez et al, 2008). Likewise, we found that PN 2 % or PN 4 % did not affect the fruit weight (Figure 1) which coincide with those reported by Ataide and Jose (2000) and Burondkar et al (2013) where foliar spray of PN at 3 % did not influence the fruit weight on 'Tommy Atkins' and 'Alphonso' mango, respectively.…”

Section: Effect Of Nitrates Alone or With Paclobutrazol On Productionsupporting

confidence: 90%

Effect of nitrates alone or with paclobutrazol on flowering induction and production in mango cv. Tommy Atkins//Efecto de nitratos solos o con paclobutrazol en la inducción floral y producción en mango cv. Tommy Atkins

et al. 2020

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The flowering induction in mango (Mangifera indica L.) orchards is an agricultural practice carried out on tropical regions to obtain fruits out-of-season looking to reach better sale prices. The objective of this research was to evaluate the effect of potassium (PN), ammonium nitrate (AN) and paclobutrazol (PBZ) on flowering induction and fruit production in mango cv. Tommy Atkins. The experiment included fourteen treatments with 2, 4, and 6 % PN, and 2, 3 and 4 % AN applied in combination with PBZ (1 g of a.i. m-1 of canopy diameter), paclobutrazol alone (1 g of a.i. m-1 of canopy diameter), and a control (water), which were arranged in a completely randomized design with three replicates. Results show that floral induction and fruit production were improved: PBZ followed by foliar application PN 2 %, 4 % or 6 % induced flowering 16 days after treatments. Likewise, the major number of emerged panicles were obtained with PBZ + PN 6 %. An increase on fruit weight and size reduction was observed at harvest. PBZ followed by foliar application of nitrates induced flowering and enhanced the number developed panicles in mango cv. Tommy Atkins.RESUMENLa inducción floral en mango (Mangifera indica L.) es una práctica agrícola común en regiones tropicales, tendiente a obtener frutos fuera de temporada para lograr mejores precios de la cosecha. Este trabajo tuvo como objetivo evaluar el efecto de tratamientos de nitrato de potasio (PN), nitrato de amonio (AN) y paclobutrazol (PBZ) sobre la inducción floral y producción de fruto en mango cv. Tommy Atkins. Los tratamientos con PN al 2, 4, y 6 % y AN al 2, 3 y 4 % fueron aplicados solos o combinados con PBZ (1 g de i.a. m-1 de diámetro de copa), PBZ solo y un testigo (agua) bajo un diseño completamente al azar, con tres repeticiones. Se midieron variables de inducción floral y producción de fruto. Los resultados muestran que aplicación foliar de PBZ seguida de PN (2 %), (4 %) o (6 %) indujeron floración 16 días después del tratamiento. El mayor número de panículas emergidas se obtuvieron con PBZ + PN 6 %. Se observó una reducción de peso y tamaño de fruto a la cosecha. El PBZ seguido de aplicaciones foliares con NP y AN induce floración y aumenta el número de panículas desarrolladas en mango cv. Tommy Atkins.

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Section: Effect Of Nitrates Alone or With Paclobutrazol On Productionsupporting

confidence: 90%

Effect of nitrates alone or with paclobutrazol on flowering induction and production in mango cv. Tommy Atkins//Efecto de nitratos solos o con paclobutrazol en la inducción floral y producción en mango cv. Tommy Atkins

et al. 2020

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“…Flower enhancing PBZ is effective not only in flower induction but also in early and off season flower induction in mango [77,[157][158][159][160]. PBZ, a gibberellin inhibitor, reduces vegetative promoter level and thereby increases florigenic promoter/vegetative promoter ratio which stimulates flowering shoots in weakly inductive shoots of fruit crops [76,[161][162][163].…”

Section: Leaf Growth Leaf Areamentioning

confidence: 99%

“…Fruit and tuber quality Fruit quality: Fruit quality of mango and lemon (TSS and acid content) increased with PBZ application [160,181]. Similarly, Vijayalakshmi and Srinivasan [111] and Yeshitela et al [76] reported that applying PBZ in mango had the greatest effect in increasing total sugar, reducing sugar, TSS, sugar: acid ratio and a decrease in titratable acidity.…”

Section: Leaf Growth Leaf Areamentioning

confidence: 99%

Paclobutrazol as a plant growth regulator

Desta

Amare

2021

Chem. Biol. Technol. Agric.

188

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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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“…Paclobutrazol, a gibberellins inhibitor, has been effectively used in reducing canopy volume and increasing flower intensity in peach [4], plum [5], almond [6], grapes [7] and mango [8]. Paclobutrazol is effective not only in flower induction but also in early and off season flower induction in mango [9,10]. Paclobutrazol application in McIntosh apple trees shortly after full bloom affected fruit quality characteristics with respect to accelerated colour development, delayed and synchronised fruit maturation, control of preharvest fruit drop and maintenance of better fruit quality during storage [11].…”

Section: Introductionmentioning

confidence: 99%

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Ashraf¹,

Ashraf²

2020

Prunus

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Paclobutrazol (PBZ; IUPAC name: (2RS, 3RS)-1-(4-chlorophenyl)-4, 4-dimethyl-2-(1H-1, 2, 4-triazol-1-yl) pentan-3-ol) is a triazol derivative and an antagonist of gibberellins. It has been shown to inhibit shoot growth in various perennial fruit trees. Paclobutrazol application reduced the number of shoots, transforming trees into a more desirable, spur-type growth habit as the vegetative sink was reduced. This compound induces an early and intense flowering, diminishing vegetative growth and reducing the extension of buds, allowing for ripening and the initiation of apical buds inflorescence. Besides, it also increases fruit set, the years following application as a carryover effect. An increase in return bloom is a common response to paclobutrazol treatment and has been reported for various fruit crops. Paclobutrazol is widely used to advance harvest maturity in various fruit crops and it improves fruit quality in terms of accelerated colour development, delayed and synchronized fruit maturation and control of preharvest fruit drop. It is known to improve fruit physical and fruit chemical characteristics. Fruit calcium is increased for 2–3 years due to carry over effect. It helps in the maintenance of better fruit quality during storage and influences nutrient uptake in various fruit crops including stone fruits. It has been characterized as an environmentally stable compound in soil and water environments with a long half-life under both aerobic and anaerobic conditions.

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Advancing Alphonso mango harvest season in lateritic rocky soils of Konkan region through manipulation in time of paclobutrazol application

Cited by 15 publications

References 17 publications

Effect of nitrates alone or with paclobutrazol on flowering induction and production in mango cv. Tommy Atkins//Efecto de nitratos solos o con paclobutrazol en la inducción floral y producción en mango cv. Tommy Atkins

Effect of nitrates alone or with paclobutrazol on flowering induction and production in mango cv. Tommy Atkins//Efecto de nitratos solos o con paclobutrazol en la inducción floral y producción en mango cv. Tommy Atkins

Paclobutrazol as a plant growth regulator

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

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