The Beneficial Effects of Biofertilizers for `Red Roomy' Grapevines (Vitis vinifera L.): 2. The Effect of Berry Set, Yield, and Quality of Berries

Akl, A.M.; Ahmed, Feryan; El-Morsy, F. M.; Ragab, Mahmoud

doi:10.21273/hortsci.32.3.487d

Cited by 4 publications

(5 citation statements)

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“…Warring and Philips (1973) stated that bread yeast is rich in tryptophan which consider precursor of IAA which stimulate cell division and elongation. Similar results to the present study was found by Mahmoud (1996) on Roomy Red Grapevines and by Akl et al, (1997) al., (2000a) on King Ruby and Gaser et al, (2006) on Flame seedless who found that bread yeast applications significantly increased the yield/vine.…”

Section: Yield and Physical Characteristics Of Clusterssupporting

confidence: 94%

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2018

J. Gar. Univ.

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Study was conducted using Thompson seedless grapevines 11 years old, trained as arbors (espalier) training in a vineyard at Erbil Directorate of Agriculture Researches / Kurdistan Region / Iraq during the growing season of 2015 to investigate the possible effects of foliar application of natural bread yeast (bio-fertilizer) and liquid organic fertilizer (B&S Pot-min) on yield quantity and quality. Results indicated that the concentration of 12 g.l-1 of bread yeast, liquid organic fertilizer at 4 ml.l-1 and interaction between them affected on yield and physical characteristics of clusters, berries and chemical properties of berries significantly over other concentrations and interactions. The number of clusters/vine, cluster weight, yield increased by application of bread yeast, and there were significant differences between treatments comparing to control. Applications of bread yeast and organic fertilizer significantly improve physical characteristics of berries comparing to control. Bread yeast application caused significant increase in total soluble solid (TSS), decreased titratable acidity (TA), with highest value of TSS/TA ratio compared with control.

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Section: Yield and Physical Characteristics Of Clusterssupporting

confidence: 94%

Untitled

2018

J. Gar. Univ.

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“…The present results are in harmony with those obtained by Akl et al (1997) who found an improvement occurred in berry set of Red Roomy grapevines treated with active dry yeast. Similar results mentioned by Ismaeil et al (2003) who found that spraying yeast extract significantly increased number of berries/cluster on the tested Red Roomy grapevines.…”

Section: Iv-number Of Berries Per Clustersupporting

confidence: 93%

“…Likewise, Omran et al (2005) with Thompson seedless grapevines found that yeast application increased TSS/acid ratio and decreased total acidity. Moreover, Akl et al (1997) with Red Roomy grapevines found an improvement of total soluble solids and total acidity in juice by active dry yeast treatment.…”

Section: I-soluble Solids Content Percentage (Ssc%) Total Acidity Content (%) and Soluble Solids Content / Acid Ratio In Berry Juicementioning

confidence: 92%

Effect of Some Biostimulants on Yield and Berry Qualities of Grapevines

El-Boray

Mostafa

Hamed

2007

Journal of Plant Production

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This study was conducted during the three seasons of 2003, 2004 and 2005 in a private vineyard of Thompson seedless grapevines (Vitis vinifera, L.) near Mansoura city, Dakahlia Governorate, Egypt. The obtained data was discussed in detail for the last 2 years only. The vines were 15year-old, cultivated at 2 x 2.5 m, grown in clay soil under surface irrigation system and trained to cane pruning under canes trellis system. The aim of this investigation was to study the effect of spraying some natural organic biostimulants including yeast extract (2.5 gm/L), seaweed extract (Acadian at 3 ml/L), ascorbic and citric acids each at (100 ppm) on the vegetative growth, yield and fruit quality of Thompson seedless grapevines. Seasonal changes of NPK during different stages of grapevine were also studied. Data showed that, the combination treatment (T5) spraying yeast extract at 2.5 gm/L, citric and ascorbic acids each at 100 ppm as natural biostimulants had a positive action on increasing SSC%, SSC/acid ratio, total sugars, cluster weight, cluster volume, number of berries per cluster, number of clusters per vine and yield. A positive effect was also detected on NPK seasonal changes especially N and P. On the other hand, this treatment gave the lowest values for acidity% and nitrate contents in berry juice.

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“…The concerned results were supported by findings of several researchers Akl et al (1997) on grapevine, Kabeel et al (2008) on pear, El-Naggar (2009) on apricot trees; Abou-Grah-Fatma (2004) and Sharaf et al (2012) on persimmon trees. Table (3): Fruit weight, fruit volume and fruit firmness of "Anna" apple trees in response to organic and bio-fertilizers during both 2013 and 2014 seasons.…”

Section: Treatmentssupporting

confidence: 79%

Effect of Using Organic and Biofertilizers on Growth, Yield and Fruit Quality of "Anna" Apple Trees

Morsey

El-Naggar

Mokhtar

2015

Journal of Plant Production

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This investigation was undertaken to study the effects of different soil application of some biostimulants fertilizers on some vegetative growth, fruiting parameters and fruit quality as well as leaf nutrient content of "Anna" apple trees budded on MM106 rootstock grown under El-Kanater Horticultural Research Station conditions during 2013 and 2014 consecutive seasons. The obtained data displayed obviously that all treatments in this study resulted in a positive increase in all investigated vegetative growth measurements i.e., shoot length, number of leaves/shoot, leaf dry weight and leaf area. Furthermore, fruiting parameters (fruit set %, tree yield in kg and yield increment (%) in relation to the control) were increased when trees treated with all studied treatments in the two experimental seasons. Moreover, fruit quality including both fruit physical characteristics i.e., fruit weight, volume, firmness, height, diameter and fruit shape index and fruit chemical properties such as TSS %, acidity % and TSS/acid ratio were improved by subjected trees to different biostimulants treatments as compared with the control. In addition to that, leaf nutrient contents of some macro-elements (N, P and K) and some micro-nutrients (Fe, Zn and Mn) were improved from the standpoint of statistic by all investigated treatments as compared the control during both 2013 and 2014 seasons of study. In general, it could be concluded that, all investigated biostimulants treatments under study exhibited a significant and beneficial influences on most of parameters and characters of "Anna" apple fruit trees. However, the Humic acid treatment was the most effective for increasing both vegetative growth and fruiting parameters as well as improving majority of fruit quality and leaf nutrient contents of "Anna" apple trees.

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The Beneficial Effects of Biofertilizers for `Red Roomy' Grapevines (Vitis vinifera L.): 2. The Effect of Berry Set, Yield, and Quality of Berries

Cited by 4 publications

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Effect of Some Biostimulants on Yield and Berry Qualities of Grapevines

Effect of Using Organic and Biofertilizers on Growth, Yield and Fruit Quality of "Anna" Apple Trees

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