The Growth of Apple Central Fruits as Affected by Thinning with NAA, BA and Naphthenic Acids

Milić, B.; Tarlanović, Jelena; Keserović, Z.; Zorić, Lana; Blagojević, Bojana; Magazin, Nenad

doi:10.1007/s10341-016-0310-x

Cited by 10 publications

(9 citation statements)

References 25 publications

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“…The influence of the application of NAs in early fruit development phases was confirmed also in our previous work. Namely, the application of NAs increased fruit weight and diameter in "Golden Delicious" apples similarly to plant hormone auxin (NAA) used in the same experiment (Milić et al, 2017). The influence of low concentrations of NAA on the increase of fruit weight and volume with effects depending on concentration was reported also by Devrari, Negi and Thakur (2017), while Son (2004) reported the same effect for the application of auxin (NAA) at pit hardening stage.…”

Section: Resultsmentioning

confidence: 59%

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Does application of naphthenic acids in early fruit development stage result in prolonged effect on cold storage and shelf life of apricot fruit?

Kevrešan¹,

Milić²,

Bajić³

et al. 2022

Food & Feed Res

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In this experiment, the effects of the application of naphthenic acids (NAs) on apricots in the early fruit development phases on fruit morphological properties, composition and postharvest properties were investigated. Two concentrations of NAs (1 mg/L and 3 mg/L) were applied at two development stages in the apricot cultivar NS-4. The application of NAs at the beginning of the petal fall development phase resulted in the reduction of fruit dimensions at harvest while the application 7 days later increased fruit dimensions. Although there were no significant differences in the most investigated characteristics between fruits treated with NAs and untreated control at harvest or in the postharvest period during 20 days of cold storage (1 ± 1 °C, RD 80%) and particularly after 3 days of shelf life at room temperature. However, compared to the untreated control, apricots treated with NAs were characterized by higher total soluble solids content accompanied by higher fructose content, and lower titratable acidity accompanied by higher succinic acid content. Apricots treated with NAs showed trends towards improved sensory properties: sweeter and less sour taste, with more expressed apricot aroma accompanied with decreased gumminess and crispiness and more intensive tissue breakdown, but without expressed notes of inappropriate taste.

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Section: Resultsmentioning

confidence: 59%

“…In apple cv. "Golden Delicious" application of 2.63 mg/L of NAs when fruit size reached 11 mm, increased number of cortical cell layers within three days after application, lower number of fruit set but increased fruit weight (Milić et al, 2017), suggesting that early NAs application could affect latter fruit development.…”

Section: Introductionmentioning

confidence: 99%

Does application of naphthenic acids in early fruit development stage result in prolonged effect on cold storage and shelf life of apricot fruit?

Kevrešan¹,

Milić²,

Bajić³

et al. 2022

Food & Feed Res

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“…4). The developing in time of thinning from full bloom until 8 weeks after full bloom reduces the fruit size and cell numbers in the 1979, Milić et al 2017]. Most researchers have found negative correlation between mean fruit weight and crop load.…”

Section: Resultsmentioning

confidence: 99%

“…This proves that not only an adequate supply of carbon determines the final yield. This can be explained by the difference in the rate of king versus lateral flower or fruit development [Milić et al 2017]. The formation of apple flowers in one cluster does not occur at the same time, because flower located in the central position is initiated first followed by the laterals.…”

Section: Resultsmentioning

confidence: 99%

Apple Trees Yielding and Fruit Quality Depending on the Crop Load, Branch Type and Position in the Crown

Szot¹,

Lipa²

2019

asphc

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The study was conducted from 2013 to 2015 on 10–13-year-old apple trees cv. ‘Szampion’ (M.9. rootstock) in experimental orchard of Department of Pomology, University of Life Sciences in Lublin. On the trees intensively flowering in 2013, the thinning treatments were performed as follows: thinning at the pink bud stage to the 50% of flower clusters leaving only a king flower in the remaining flower clusters; thinning at the pink bud stage to the 50% of flower clusters leaving only one lateral flower in the remaining flower clusters, thinning 4 weeks after full bloom to the 50% of fruit clusters leaving only a fruit from king flower in the remaining fruit clusters, thinning 4 weeks after full bloom to the 50% of fruit clusters leaving only one fruit from lateral flower in the remaining fruit clusters. Intensively flowering control trees in 2013 and poorly flowering trees in 2013 were left unthinned. The best results in terms of regularity of yielding and high-quality fruits after thinning at pink bud stage to king flower, were obtained. The largest fluctuations in yields were observed with the control tree that flowered poorly in the beginning of the study. It was found that the cultivar ‘Szampion’ is characterized by equal distribution of fruits in lower and middle parts of crown, however in the top of crown, the amount of fruits is significantly lower. Apples with the largest mean fruit weight were from spurs on wood older than two years. However the best flesh firmness, soluble solids and dry matter content was detected in fruits from brindles.

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“…The application of a synthetic cytokinin, 6-benzyladenine (BA), stimulates cell division during the early phase of fruit development and promotes cell enlargement, resulting in higher fruit weight and size [12,13]. In apples, BA application was found to affect both cell size and the number of cell layers in the cortex, altering the final fruit size [12]. BA can increase fruit size in apples [14] and pears [9], but it can also affect the size of stone fruit, such as sweet cherries [3] and apricots [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Plant Growth Regulators on Plum (Prunus domestica L.) Grown on Two Rootstocks at Harvest and at the Postharvest Period

et al. 2022

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Plant growth regulators (PGRs), such as cytokinins (6-benzyladenine; BA) and gibberellins (GAs), are widely used in fruit production. This study focused on the plum cultivar “Čačanska rodna” (P. domestica L.) grafted on vegetative rootstock “WaVit” and generative rootstock Prunus cerasifera, with interstock Prunus spinosa. PGR treatments included 50 mg L−1 and 100 mg L−1 of BA and 200 mg L−1 of gibberellin A3 (GA3) and non-treated control. Pomological characteristics of plum fruits were examined at harvest, while physicochemical properties were analyzed at harvest and after 28 days of cold storage and 4 days of shelf life. GA3 and BA application changed the fruit morphological traits, improved skin strength, and increased carotenoid, anthocyanin and sucrose content while decreasing the titratable acidity at harvest. The beneficial effects of higher sucrose, anthocyanin and carotenoid levels persisted in all PGR-treated fruits after cold storage and shelf life. GA3-treated fruits had firmer flesh, stronger skin and higher total soluble solids (TSS) content, while in BA-treated plums, these effects were rootstock-dependent. The physical properties and chemical composition of plum fruit in the postharvest period suggest beneficial effects of the applied PGR treatments. Moreover, these chemical treatments might have prolonged the beneficial impact on fruit storability, nutritional profile and sensory properties. Based on our results, GA3 preharvest treatment can be included in standard cultivation practices within contemporary production systems of European plums not only to improve fruit quality at harvest but also to improve the storage potential and nutritional value, regardless of the rootstock used.

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The Growth of Apple Central Fruits as Affected by Thinning with NAA, BA and Naphthenic Acids

Cited by 10 publications

References 25 publications

Does application of naphthenic acids in early fruit development stage result in prolonged effect on cold storage and shelf life of apricot fruit?

Does application of naphthenic acids in early fruit development stage result in prolonged effect on cold storage and shelf life of apricot fruit?

Apple Trees Yielding and Fruit Quality Depending on the Crop Load, Branch Type and Position in the Crown

Effects of Plant Growth Regulators on Plum (Prunus domestica L.) Grown on Two Rootstocks at Harvest and at the Postharvest Period

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