Performance of Peach Trees cv. Florida Prince under Different Foliar Concentrations of NPK-humate in Presence or Absence of Adjuvants

El-Boray, M. S. S.; Shalan, A. M.; Khouri, Z.M.

doi:10.3923/thr.2016.5.17

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…(2024) [26] attributed higher fruit diameter, weight, firmness and yield to positive interaction of organic substances with micronutrients resulting in increase in cell size and intercellular space (Baker and Davis 1951) [6] in Anna apple plants under semi-arid conditions of Haryana, India. El-Boray et al (2016) [18] reported significant increase in peach fruit firmness following application of bio stimulants. Similar results were found in apple (Thanaa et al 2016) [46] and pear (Fayek et al 2011) [21] .…”

Section: Physical Fruit Quality Characteristicsmentioning

confidence: 99%

“…[46] observed that amino acids enhanced the synthesis of different proteins, acids and sugars, which increased TSS content in fruits. El-Boray et al (2016) [18] reported that foliar application of bio stimulants increased TSS, total sugars and reduced acidity due to enhanced photosynthesis of plants, increased leaf area and potassium content which resulted in improved fruit quality in peach. Exogenous application of amino acids improved total soluble solids, total sugars and decreased acidity in peach (Kaur et al 2019) [27] .…”

Section: Physical Fruit Quality Characteristicsmentioning

confidence: 99%

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Effect of plant bio stimulant application on plant health, growth, fruit yield and quality of apple (Malus x domestica) under temperate conditions of Jammu and Kashmir, India

Chaudhary,

Kotwal,

Kumar

et al. 2024

Int. J. Res. Agron.

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A research trial was conducted to study the efficacy of commercial product G5 granules and liquid (a plant bio stimulant consisting of sea weed extract, amino acids, herbal extract, humic acid and anti-fungal substances) on plant health, growth, fruit yield and quality attributes of apple cv. Red Delicious under temperate conditions of Jammu and Kashmir during the year 2022-23. The treatments comprised: T1 (soil application of G5 granules @500 g/tree as basal dose at pre-flowering stage), T2 (T1 + G5 liquid @250 ml/100 l of water as foliar spray at petal fall stage), T3 (T2 + G5 liquid @250 ml/100 l of water as foliar spray at walnut size stage), T4 (T3+G5 liquid @250 ml/100 l of water as foliar spray at fruit development stage) and T5 (control) in addition to standard recommendations. Results of study showed that the highest growth in terms of shoot length was obtained in T4 followed by T3, T2 and T1 treatments. The highest fruit set was observed in treatment T2 that was statistically at par with T3 and T4. T4 recorded the highest fruit retention, fruit yield and the lowest fruit drop. The lowest growth, fruit set, fruit retention, fruit yield and the highest fruit drop was observed in control. All treatments were found to be highly superior to control in terms of fruit weight, length, breadth and firmness with T3 and T4 showing marked increase in fruit colour as compared to other treatments. As regards chemical fruit quality attributes, again T4 recorded the highest TSS, reducing sugars and total sugars while the values of these attributes were the lowest in control and vice versa for acidity. There was no apparent phyto-toxic effect of any of the treatments on tree/fruit health. Thus, treatment T4 (soil application of G5 granules as basal dose @500 g/tree at pre-flowering stage + G5 liquid foliar sprays @250ml/100 l of water one each at petal fall, walnut size and fruit development stage) was found to be the best among all treatments in enhancing growth, fruit yield and quality attributes of apple.

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Section: Physical Fruit Quality Characteristicsmentioning

confidence: 99%

Section: Physical Fruit Quality Characteristicsmentioning

confidence: 99%

Effect of plant bio stimulant application on plant health, growth, fruit yield and quality of apple (Malus x domestica) under temperate conditions of Jammu and Kashmir, India

Chaudhary,

Kotwal,

Kumar

et al. 2024

Int. J. Res. Agron.

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Postharvest Treatment of ‘Florida Prince’ Peaches with a Calcium Nanoparticle–Ascorbic Acid Mixture during Cold Storage and Its Effect on Antioxidant Enzyme Activities

2021

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Chilling injury (CI) is a physiological disorder resulting from low storage temperatures that affects the fruit quality and marketing of the ‘Florida Prince’ peach. In this study, the exogenous application of a mixture of calcium nanoparticles (CaNPs) and ascorbic acid was found to significantly alleviate the symptoms of CI in peaches during cold storage. Fruits were treated with CaNPs plus different concentrations of ascorbic acid (AA; 0, 3, 6, and 9 mM). Peaches were immersed in CaNP–AA for 15 min before being stored at 4 ± 1 °C and 95 ± 1% RH for 30 days. We observed that the 9 mM CaNP–AA treatment lowered the values for the CI index, ion leakage, and malondialdehyde (MDA) content and increased antioxidant enzyme activities (AEAs), such as for ascorbate oxidase (APX), catalase (CAT), superoxide dismutase (SOD), and glutathione reductase (GR). Furthermore, the treatment reduced the accumulation of both H2O2 and O2•− and increased the level of DPPH reduction throughout the duration of cold storage. Our results suggest that 9 mM CaNP–AA treatment suppresses the incidence of CI in peach fruit throughout cold storage, possibly because 9 mM CaNP–AA is at least partly involved in enhancing the antioxidant system via its effect on antioxidant substances. The results indicate that applying the 9 mM CaNP–AA treatment afforded peaches with enhanced tolerance against cold storage stress.

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Effect of exogenous application of amino acids on fruit quality and productivity of peach (Prunus persica)

2019

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The present investigations were carried out at Fruit Research Farm, Punjab Agricultural University, Ludhiana during 2016-17 to study the effect of exogenous application of amino acids (Peptone) on fruit quality, maturity and productivity of peach (Prunus persica L. Batsch) in sub-tropics of north India. The 6-year-old peach trees of cv. Florida Prince were sprayed with 0.25% and 0.50% of amino acid (Peptone P1 023), 7 and 14 days after full bloom and the sprays were repeated after 15 and 30 days. The highest yield (53.92 kg/tree) was recorded in T8 treatment (0.50% amino acid applied 14 days after full bloom and repeated after 15 days) while lowest in T12 treatment sprayed with triple spray of amino acids. All the double spray treatments of amino acids advanced fruit maturity by 4 days as compared to control. The mean maximum fruit weight (78.23 g) was recorded in T8 (0.50% amino acid applied 14 days after full bloom and repeated 15 days later) and minimum in the plants sprayed with triple sprays of amino acids (T12). The double spray treatments (T5 to T8) recorded lower fruit firmness indicating early maturity than control and other treatments. Maximum fruit TSS (12.10Â°Brix), highest total sugars content (5.12%) and lowest mean juice acidity (0.70%) was recorded in T8 treatment. Therefore, the double spray treatments of amino acids advanced fruit maturity, increased yield and improved fruit quality in peach.

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Performance of Peach Trees cv. Florida Prince under Different Foliar Concentrations of NPK-humate in Presence or Absence of Adjuvants

Cited by 3 publications

References 19 publications

Effect of plant bio stimulant application on plant health, growth, fruit yield and quality of apple (Malus x domestica) under temperate conditions of Jammu and Kashmir, India

Effect of plant bio stimulant application on plant health, growth, fruit yield and quality of apple (Malus x domestica) under temperate conditions of Jammu and Kashmir, India

Postharvest Treatment of ‘Florida Prince’ Peaches with a Calcium Nanoparticle–Ascorbic Acid Mixture during Cold Storage and Its Effect on Antioxidant Enzyme Activities

Effect of exogenous application of amino acids on fruit quality and productivity of peach (Prunus persica)

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