PLANT GROWTH REGULATOR EFFECTS ON THE STORAGE AND SHELF-LIFE ÂTRIUMPHâ PERSIMMONS

Ben‐Arie, Ruth; Zhou, H.W.; Sonego, L.; Zutkhi, Y.

doi:10.17660/actahortic.1997.436.26

Cited by 11 publications

(5 citation statements)

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“…Paclobutrazol (PBZ), one such GA inhibitor, is widely used to advance harvest maturity in various fruit crops including mango [68], peach [62] and persimmon [69]. Delayed fruit maturation and increased fruit weight was found in peach by the application of paclobutrazol [70].…”

Section: Fruit Physical Characteristicsmentioning

confidence: 99%

“…Jindal and Chandel [50] applied paclobutrazol Prunus in 'Santa Rosa' plum at 125, 250 and 500 ppm once at full bloom and again at pit hardening stage and reported maximum fruit weight of 24.33 g and fruit volume of 21.6 cc in fruits treated with 500 ppm of paclobutrazol. In persimmons, soil drench application of paclobutrazol accelerated ripening by 2-3 weeks [69]. The increase in fruit length and breadth was due to the reason that application of paclobutrazol reduced vegetative growth (sinks) which in turn, increased the partitioning of nutrients and dry matter towards fruits and thereby, increased the fruit size and weight [49].…”

Section: Fruit Physical Characteristicsmentioning

confidence: 99%

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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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Section: Fruit Physical Characteristicsmentioning

confidence: 99%

Section: Fruit Physical Characteristicsmentioning

confidence: 99%

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Ashraf¹,

Ashraf²

2020

Prunus

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“…Following 3 months of storage at −1 °C, the fungus becomes active showing tiny black dots, which develop into superficial dry black spots when transferred to shelf life at 20 °C (Prusky et al ., 1981). Persimmon quality during storage can be modulated by preharvest gibberellic acid (GA 3 ) treatment which significantly improves the length of storage (Ben‐Arie et al ., 1997). Inhibitors of GA 3 , such as paclobutrazol (PBZ), induce early harvesting, but reduce fruit quality (early softening) during storage (Ben‐Arie et al ., 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Persimmon quality during storage can be modulated by preharvest gibberellic acid (GA 3 ) treatment which significantly improves the length of storage (Ben‐Arie et al ., 1997). Inhibitors of GA 3 , such as paclobutrazol (PBZ), induce early harvesting, but reduce fruit quality (early softening) during storage (Ben‐Arie et al ., 1997). Eshel et al .…”

Section: Introductionmentioning

confidence: 99%

Characterization of Alternaria alternata glucanase genes expressed during infection of resistant and susceptible persimmon fruits

Eshel

Lichter

Dinoor

et al. 2002

Molecular Plant Pathology

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Summary Preharvest treatment with gibberellic acid (GA(3)) or its inhibitor paclobutrazol (PBZ) can reduce or increase, respectively, the susceptibility of persimmon fruits to Alternaria alternata. This was suggested to be the result of the ability of the fungus and produced endoglucanases to induce symptom development. To evaluate the importance of glucanases during A. alternata attack, five glucanase genes, corresponding to the C, F, and K families, were cloned from A. alternata using 'family-specific' oligonucleotide primers. The genes, present in a single copy, encode for exoglucanases AaC1 and AaC2, endoxylanase AaF1, endoglucanase AaK1, and the mixed-linked glucanase AaMLG1. Reverse transcriptase polymerase chain reaction (RT-PCR) analysis of RNA extracted from persimmon fruits, 2 and 4 days post-infection with A. alternata, showed the expression of all five glucanase genes in GA3- and PBZ-treated fruits. However, transcription levels and enzyme production of the endoglucanase (AaK1) and one exoglucanase (AaC1) were enhanced during A. alternata growth on cell walls from susceptible PBZ-treated fruits, whereas the expression of these genes and their enzyme production were significantly reduced in resistant GA(3)-treated fruits. The present results suggest the involvement of endo- and exoglucanase in symptom development caused by A. alternata in resistant and susceptible persimmon fruits.

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“…Harvesting of persimmon fruit is selective and is carried out according to their external color. At a late stage of maturation, i.e., about two weeks prior to harvest, the fruit color shifts from green to slightly orange, and at this time the fruit are treated with gibberellin (GA 3 ) at 50 µg•L −1 , to prevent softening [1][2][3], and to reduce Alternaria black spot disease (ABS) (Alternaria alternata) occurrence during storage [4][5][6]. Field application of GA 3 delayed fruit maturity, postponed the green-to-orange color change, enhanced erection of the sepal lobes and thereby reduced local humidity and ABS severity, and affected the fruit cell wall composition [1,3,4].…”

Section: Introductionmentioning

confidence: 99%

Postharvest Dips of Persimmon Fruit in Gibberellic Acid: An Efficient Treatment to Improve Storability and Reduce Alternaria Black Spot

et al. 2019

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In Israel, fruit softening during storage and the occurrence of Alternaria black spot (ABS) disease, caused by Alternaria alternata, are the main postharvest factors that reduce quality and impair storability of persimmon fruit. The pathogen causing ABS infects the fruit in the orchard and remains quiescent until harvest, or renews its development just before harvest but mainly during storage. A preharvest spray with 50 µg·L−1 gibberellin (GA3) significantly improved fruit storability, as determined by fruit firmness and levels of ABS. While GA3 treatments have been commercially applied for more than 30 years, significant limitations of the use of the preharvest treatment like enhancing the risk of a reduced yield have been described. Recent findings suggested that postharvest dip treatments with increased concentrations of GA3 also delayed fruit softening and reduced ABS to similar levels to the commercially applied preharvest treatment in persimmon fruit stored for 3 months at 0 °C. Postharvest GA3 dip treatments at concentrations ranging from 500 to 1500 µg·L−1 were similarly more efficient in the prevention of fruit softening and ABS development than the 50 µg·L−1 preharvest spray. Present results indicated that postharvest GA3 treatment physiologically affects fruit firmness and susceptibility to ABS during storage.

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PLANT GROWTH REGULATOR EFFECTS ON THE STORAGE AND SHELF-LIFE ÂTRIUMPHâ PERSIMMONS

Cited by 11 publications

References 0 publications

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Characterization of Alternaria alternata glucanase genes expressed during infection of resistant and susceptible persimmon fruits

Postharvest Dips of Persimmon Fruit in Gibberellic Acid: An Efficient Treatment to Improve Storability and Reduce Alternaria Black Spot

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PLANT GROWTH REGULATOR EFFECTS ON THE STORAGE AND SHELF-LIFE ÂTRIUMPHâ PERSIMMONS

Cited by 11 publications

References 0 publications

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Response of Growth Inhibitor Paclobutrazol in Fruit Crops

Characterization of Alternaria alternata glucanase genes expressed during infection of resistant and susceptible persimmon fruits

Postharvest Dips of Persimmon Fruit in Gibberellic Acid: An Efficient Treatment to Improve Storability and Reduce Alternaria Black Spot

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PLANT GROWTH REGULATOR EFFECTS ON THE STORAGE AND SHELF-LIFE ÂTRIUMPHâ PERSIMMONS