Fruit set and yield of apple trees cv. Gala treated with seaweed extract of ascophyllum nodosum and thidiazuron

Ayub, Ricardo Antônio; Sousa, Anelise Marques de; Viencz, Thayna; Botelho, Renato Vasconcelos

doi:10.1590/0100-29452019072

Cited by 17 publications

(12 citation statements)

References 28 publications

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“…The total soluble solids content (Table 3) showed similar values between the control, LG, and MA, while PEP reported a lower value of about 5.35% compared to the other treatments. Similar results have also been observed by Bradshaw et al [31] and by De Sousa et al [32], in which ANE (Ascophyllum nodosum extracts) treatment had no effect on fruit firmness, starch index at harvest, and soluble solids concentration. Whereas, in agreement with Robert and von Loeska [33], TSS showed an increase of 9.9% from the harvest to +120 days of cold storage, while in contrast to TSS, a reduction in titratable acidity of 49.3% was registered.…”

Section: Effects Of Biostimulants On Flesh Firmness Total Soluble Solids Content Total Acidity and Juice Phsupporting

confidence: 88%

Biostimulant Application Improves Yield Parameters and Accentuates Fruit Color of Annurca Apples

et al. 2021

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The Annurca apple is a typical fruit from Southern Italy that is notable for its high firmness and characteristic flavor, and presents positive effects on human health. The aim of the present study was to improve the agronomic characteristics of Annurca trees and the quality of their fruits by the use of plant biostimulants. We performed the study with three biostimulants (protein hydrolysates, seaweed extracts, and microalgae) to determine their effects on trees and fruits at harvest and during fridge conservation. The measurements in the field concerned the production per plant, the number of fruits, the diameter and fruit weight, the diameter of trunk, the weight of pruning, the first harvest %, and yield efficiency (plant prod./TCSA) for both growing seasons 2018–2019. The analyzed fruit parameters at harvest and during the fridge conservation were: flesh firmness, epicarp color, total soluble solids, pH, and titratable acidity. The results showed positive effects of the biostimulants on the production and the color parameters, especially with microalgae enhancing fruit redness (5-fold) and color index (8.5-fold). In particular, protein hydrolysates and microalgae increased the production (10.4%), diameter of the fruits (7.0%), the first harvest percentage (37.8%), and yield efficiency (6.9%). The tested plant biostimulants showed no significant effect on the measured qualitative parameters. This study represents the first detailed research on the use of different types of biostimulants on Annurca trees and their impact on the quality of its fruits from harvest to storage, and may present a sustainable alternative for the “melaio” processes.

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Section: Effects Of Biostimulants On Flesh Firmness Total Soluble Solids Content Total Acidity and Juice Phsupporting

confidence: 88%

Biostimulant Application Improves Yield Parameters and Accentuates Fruit Color of Annurca Apples

et al. 2021

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“…An increase in the quality of grape berries in the study of [36] was obtained after the application of a mixture of seaweed extract together with lime and magnesium. A positive effect on the apple weight after the application of such biostimulants was also demonstrated by [37] while [38] showed no effect of Goëmar BM 86 formulation based on marine algae extract on the average weight of single fruit and total yield in apple crops.…”

Section: Resultsmentioning

confidence: 85%

Evaluation of the Effect of Biostimulation on the Yielding of Golden Delicious Apple Trees

Kapłan,

Klimek,

Buczyński

et al. 2023

Applied Sciences

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The aim of the study was to assess the impact of N Pro and Seactiv Complex technologies based on sea algae extracts on the yield and quality of Golden Delicious apple trees compared to the standard fertilization program. Research conducted in the years 2008–2017 showed that the tree fertilization technology and the year of research had a significant impact on the quality and yield parameters. The abundance of seaweed extracts had a positive effect on the greater number of fruits per tree (pcs.), their weight (t × ha−1; kg tree−1), the percentage of fruits exceeding 7.5 cm in size (%) and the average weight of fruits (g) compared to the control combination. In most of the analyzed study years, total yield exceeded the 90 t × threshold regardless of the fertilization program. The use of technology based on sea algae extracts during 10 years of research had a positive effect on the quality and weight compared to the standard fertilization technology commonly used in cultivation.

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“… Yang et al (2023) found the foliar application of SE improved the levels of soluble solids, Vitamin C, free amino acids, sugars, and mineral elements in the fruits. Likewise, Ayub et al (2019) reported that SW applied to ‘Gala’ apple at concentrations ranging from 0.1% to 0.6% resulted in higher fruit set percentage, total fruit numbers, fruit weight, and fruit length compared to the control, with the 0.3% concentration yielding the best results. Alebidi et al (2021) reported that spraying algae on Barhee date palm enhanced the physical and chemical properties of the fruit and yielded the highest values of fruit length, fruit diameter, fruit shape index, flesh weight, seed weight, total soluble solids (TSS), acidity, TSS/acid ratio, tannins, reducing sugars, nonreducing sugars, and total sugars.…”

Section: Discussionmentioning

confidence: 93%

Synergistic effect of seaweed extract and boric acid and/or calcium chloride on productivity and physico-chemical properties of Valencia orange

Alebidi,

Abdel-Sattar

2024

PeerJ

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Many citrus species and cultivars are grown successfully in tropical and subtropical countries, as well as in arid and semi-arid regions with low levels of organic matter and low cation exchange, resulting in lower nutrient uptake by the plant. The essential nutrients needed for citrus flowering and fruit set are limited in winter due to a reduction in transpiration rate, negatively effecting vegetative growth, flowering, yield, and fruit quality. The present investigation was carried out to assess the nutritional status, fruit yield parameters, and fruit quality of Valencia orange trees after foliar spraying of seaweed extract (SW) combined with calcium chloride and boric acid and their combinations in the 2020/2021 and 2021/2022 seasons. The treatments were arranged in a split-plot design (three levels spraying seaweed extract × four levels spraying calcium chloride and boric acid and their combinations × four replicates × one tree/replicate). The results indicated that all of the characteristics measured, including leaf chlorophyll, leaf mineral contents, fruit yield parameters, fruit physical properties, and fruit chemical properties, were significantly affected by the foliar spraying of seaweed extract (SW) combined with calcium chloride and boric acid and their combinations. Although all treatments increased the productivity and the physical and chemical properties of Valencia orange fruits compared to the control, a treatment of 10 g/L SW combined with 0.5 g/L boric acid and 1 g/L calcium chloride produced superior results. This ratio of SW, boric acid, and calcium chloride is therefore recommended to enhance productivity and improve the physico-chemical properties of Valencia orange for greater fruit yield.

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Fruit set and yield of apple trees cv. Gala treated with seaweed extract of ascophyllum nodosum and thidiazuron

Cited by 17 publications

References 28 publications

Biostimulant Application Improves Yield Parameters and Accentuates Fruit Color of Annurca Apples

Biostimulant Application Improves Yield Parameters and Accentuates Fruit Color of Annurca Apples

Evaluation of the Effect of Biostimulation on the Yielding of Golden Delicious Apple Trees

Synergistic effect of seaweed extract and boric acid and/or calcium chloride on productivity and physico-chemical properties of Valencia orange

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