Effect of thinning time and fruit spacing on fruit maturity, yield, size, peel colour and quality attributes of peach cv. Flordasun

Deshmukh, N. A.; Rymbai, H.; Jha, Aastik; P, Lyngdoh; Malhotra, S.K.

doi:10.5958/0974-0112.2017.00012.3

Cited by 9 publications

(9 citation statements)

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“…Further, bloom-thinning resulted in significantly lower yield-per-tree in 'Cary Mac' and 'July Prince' in 2018, indicating that severe thinning during bloom can potentially reduce yields. This was consistent with previous reports that indicated a reduction in yield in response to bloom-thinning [12,18,39,40]. However, partial bloom-thinning has been reported to increase fruit size without negatively affecting yield [18,37,[41][42][43].…”

Section: Discussionsupporting

confidence: 93%

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Optimizing Fruit-Thinning Strategies in Peach (Prunus persica) Production

et al. 2020

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Fruit size is a highly valued commercial trait in peach. Competition among fruit and among other sinks on a tree reduces potential growth rate of the fruit. Hence, crop-load management strategies such as thinning (removal of flowers or fruit) are often practiced by growers to optimize fruit size. Thinning can be performed at bloom or during early fruit development and at different intensities to optimize fruit growth responses. Responses to thinning may be cultivar and location specific. The objective of the current study was to fine-tune thinning strategies in the southeastern United States, a major peach producing region. Timing and intensity of thinning were evaluated across multiple cultivars over three years. Thinning at bloom or at 21 d after full bloom (DAFB) improved fruit size in comparison to unthinned trees in ‘Cary Mac’ and ‘July Prince’, respectively, in one year. Bloom-thinning reduced fruit yield (kg per tree) in the above cultivars in one year, suggesting that flower thinning alone may not be a viable option in this region. Intensity of thinning, evaluated as spacings of 15 cm and 20 cm between fruit, did not differentially affect fruit weight or yield. However, fruit diameter decreased quadratically with increasing fruit number per tree in ‘Cary Mac’, ‘July Prince’ and ‘Summer Flame’. Similarly, fruit weight decreased quadratically in response to increase in fruit number per tree in ‘Cary Mac’ and ‘July Prince’. Further, yield-per-tree decreased with increasing fruit size in ‘Cary Mac’ and ‘July Prince’. Importantly, these relationships were cultivar specific. Together, the data suggest that achieving a target fruit number per tree is an effective strategy for crop-load management to optimize fruit size in southeastern peach production. The target fruit number per tree may potentially be achieved through a combination of flower and fruit-thinning during early fruit development. Such an approach may provide flexibility in crop-load management in relation to adverse weather events.

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Section: Discussionsupporting

confidence: 93%

“…Thinning at bloom often results in larger fruit size at harvest in comparison to thinning at later stages [12,39,40]. Bloom-thinning has also been reported to substantially alter fruit size distribution at harvest in favor of larger fruit size [18,19].…”

Section: Discussionmentioning

confidence: 99%

Optimizing Fruit-Thinning Strategies in Peach (Prunus persica) Production

et al. 2020

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“…The value of TSS, Total Sugar, Titrable acidity and L value was found to be 9.32, 6.54, 0.44 and 40.33 respectively. Similar findings were obtained by ( Brooks et al., 1993 ; Deshmukh et al., 2017 ).…”

Section: Resultssupporting

confidence: 90%

Physiochemical, sensorial and rheological characteristics of puree developed from Kashmiri peaches: influence of sugar, KMS and storage conditions

Wani

Bakshi

Khan

et al. 2021

Heliyon

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The present investigation was undertaken to develop puree from peaches and to study the effect of peel, sugar, KMS concentrations and storage conditions on the acidity, pH, total soluble solids, total sugar and rheological behavior of purees. Two types of Purees (Peeled and unpeeled) were prepared by adding sugar (10% and 15%) and KMS (100ppm, 200ppm, 300ppm). A decrease in viscosity with an increase in shear rate was observed. The developed purees were stored at refrigerated and ambient conditions for 45 days and were analyzed at 15 days interval. During the storage period, there was a change in Gʹ and Gʺand the changes in pH and TSS were observed. The highest decrease in Gʹ and Gʺ was observed in P 1 and P 0 at ambient storage. The overall organoleptic score of all samples was acceptable, however, the organoleptic score of the P 7 at refrigerated conditions was highest.

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“…PBZ application not only increased the assimilate translocation toward the developing fruits but also reduced their translocation towards the vegetative sinks which are evident from the data presented in Table 4. Similar ndings have been reported by Blanco (1985), Costa (2000), Wu et al (2005) and Deshmukh et al (2012).…”

Section: Fruit Retention Weight and Yieldsupporting

confidence: 91%

Using paclobutrazol and leaf-to-fruit-ratio as tools for improving yield and quality of non-dwarfing high-density peach orchards

Sharma

Dhar

2023

Preprint

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Excessive fruit set and foliar shading are the major deterrents to the economic productivity of peach orchards raised on vigorous rootstocks. To address this issue in high density peach orchards studies were conducted on the Early Grande peach grafted on to non-dwarfing wild peach seedling rootstock. The orchard was situated in the sub-Himalayan subtropics having sandy loam soil with normal physico-chemical characteristics. Experiment was laid out in RBD factorial experimental design with paclobutrazol (PBZ) and leaf-to-fruit ratio (LFR) treatment factors; three levels of PBZ viz. P1-1500ppm, P2-2500ppm, P3-0 ppm and four levels of LFR i.e. L1-30:1, L2-40:1, L3-50:1 and L4 - normal leaf number were tried. The findings revealed that 2500 ppm PBZ together with 40:1 LFR treatment not only reduced the number of days from full bloom to maturity but also improved fruit thinning. The fruit retention was recorded better with 1500 ppm PBZ and 50:1 LFR; however, the yield was recorded highest with 2500 ppm PBZ and 40:1 LFR treatments. This treatment combination also resulted in better overall fruit quality in terms of fruit surface colour, total soluble solids, firmness, acidity, sugars etc. The control over the vegetative growth was also observed better under this treatment combination.

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Effect of thinning time and fruit spacing on fruit maturity, yield, size, peel colour and quality attributes of peach cv. Flordasun

Cited by 9 publications

References 0 publications

Optimizing Fruit-Thinning Strategies in Peach (Prunus persica) Production

Optimizing Fruit-Thinning Strategies in Peach (Prunus persica) Production

Physiochemical, sensorial and rheological characteristics of puree developed from Kashmiri peaches: influence of sugar, KMS and storage conditions

Using paclobutrazol and leaf-to-fruit-ratio as tools for improving yield and quality of non-dwarfing high-density peach orchards

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