The Influence of Npk, Phosphorus Source and Potassium Foliar Application on Growth and Fruit Quality of Thompson Seedless Grapevines

Salem, A.T.; Kilany, A.E.; Shaker, Ghada

doi:10.17660/actahortic.2004.640.18

Cited by 8 publications

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“…The increase in yield obtained by the mentioned substances might be due to that they also increased berry and cluster weight in the present study. Our data are in line with those obtained by Salem, et al (2004) who reported that there was a positive relationship between the increases in yield and increase the level of nitrogen fertilization. Also, the increase nitrogen level per vine also led to an increase in the yield of Roomy Red grapevine (Ghobrial et al (1991).…”

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confidence: 93%

“…The increasing in shoot length may be to increase N dose, the N plays a major role in cell division and improves photosynthesis process which results in higher accumulation of organic matter in plant tissues. Consistent to our results, Salem et al (2004) reported that using with Nitrogen fertilize at 80 kg/feddan increased shoot length on Thompson Seedless grapevines. …”

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confidence: 93%

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Attempts to Improve Berry Quality of flame seedless Grapevines

Hussien¹,

abdelall²

2017

NIDOC-ASRT

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THIS STUDY was carried out during 2014 and 2015 seasons on flame seedless grapevines. The vines were treated with three nitrogen fertilizer concentration (control : 100% of recommended dose, 50 and 75% of recommended dose ), combined with foliar application of potassium 2cm/L, as well as foliar ethrel at 250 ppm at veraison stage. Removals of basal leaves on the fruiting canes were also done. The purpose of this study was to investigate the effect of these treatments on growth, productivity and berry quality of flame seedless grapevines. Results revealed that, the maximum values of leaf area and shoot length were found on the vines that were treated as the control. Significant high yield and cluster number were found after combined treatment with N (75 % of recommended rate) + foliar Ethrel at 250 ppm and basal leaves remove on the cluster at veraison stage in the first season and N (75% of recommended rate) + foliar potassium at 2 ml/L at veraison stage in the second season. While, average cluster weight and berry quality were found after combined treatment with Nitrogen at 75% + K at 2cm/L + ethrel at 250 ppm along with basal leaves remove application-as compared to all treatment, This was the best treatment in improving color and quality of -flame seedless berries.Keywords: Flame seedless grapevine, Nitrogen, Potassium, Etherl quality, Yield. IntroductionGrape is one of the most popular and favorite fruits in Egypt. Grapes rank the second after citrus concerning the acreage and consumption rates. The acreage of cultivated grapevine area in Egypt exhibited a remarkable increase in the last decade reached192934 fed. Which produce 1596169 tons (according to the latest statistics of the ministry of agriculture (2014). The flavor of Flame Seedless fruits is distinctively delicate and sweet, so it is one of the most favorable varieties cultivars in the Egypt. Berry skin colour is an important quality parameter in table grape. Grapes, grown in warm climate regions do not develop a desirable red colour. The colour development in berries is affected by high temperatures above 30 •C which inhibit anthocyanin production and accumulation. Weak berry color development in red varieties, such as Red Globe, Flame Seedless, and Crimson Seedless, leads to poor quality and, serious economic loss.Nitrogen (N) is a macro nutrient needed in great amounts to achieve maximum crop yield. N is an essential constituent of metabolically active compounds such as proteins, enzymes, nucleic acids and chlorophyll. N plays a major role in cell division and improves photosynthesis process which results in higher accumulation of organic matter in plant tissues. When N is a limiting factor, the rate and extent of protein synthesis is decreased. As a result, the plant growth is affected. Moreover, the plant becomes stunted and develops leaf chlorosis (Vicente et al., 2014). Inadequate N supply is often the growth-limiting factor in the field. Consequently, addition of N usually improves plant growth and yield. The quality of grape berries is st...

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confidence: 93%

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confidence: 93%

Attempts to Improve Berry Quality of flame seedless Grapevines

Hussien¹,

abdelall²

2017

NIDOC-ASRT

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“…Also, UP and APP had significantly higher tuber yield of medium and large size compared to those supplied with other P sources. These results were in agreement with Salem et al (2004). The data showed that, as the P rate increased, the yield of medium (30-60g) and large (> 60 g ) size tubers increased.…”

Section: Yieldsupporting

confidence: 89%

Evaluation of Phosphorus Sources and Rates on The Yield and Quality of Fertigated Potato Grown in Sandy Soil

Zeid¹,

El-Latif²

2018

Egypt.J. Soil Sci.

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“…[19]. Furthermore, yield of 'Thompson Seedless' was influenced in positive correlation by the level of nitrogen fertilizers [20]. There was a gradual increment in the yield of 'Roomy Red' as a result of increasing nitrogen level from 75 to 175 g/vine [21].…”

Section: Resultsmentioning

confidence: 99%

Effect of nitrogen and potassium fertilization on productivity and fruit quality of ‘crimson seedless’ grape

EL-Razek¹,

Treutter²

2011

ABJNA

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The effect of the nutritional status of grapevine 'Crimson Seedless' on growth, fruit set and quality was studied in two growing periods. The vines were treated with three nitrogen rates (24, 36, 48 kg/ha.) combined with three potassium levels (240, 285, 330 kg/ha). Increasing N supply enhanced N-concentrations in the petioles. N-fertilization also increased K concentrations in the petioles. The K-fertilization variants themselves did not alter the K content of the petioles. High Nfertilization improved vegetative growth (leaf area, cane diameter) and reduced bud burst, bud fertility and fruitfulness. Excessive N-supply negatively affected yield per vine by reducing the number of fruit clusters. Cluster size, however, was improved with increasing N-nutrition whereas the number of berries per cluster and the cluster compactness remained unchanged. The single berries were bigger (size, weight) and their shape remained typically for the cv. The amount of juice per berry increased and fruit firmness decreased in the high N-variants. The only effect of high K fertilization was an increase of total soluble solids and a decrease of acid concentration. Anthocyanin contents generally showed a high variability in the experiment. Therefore, the color of berries might be more regulated by the ripening process than by the fertilizer treatments.

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The Influence of Npk, Phosphorus Source and Potassium Foliar Application on Growth and Fruit Quality of Thompson Seedless Grapevines

Cited by 8 publications

References 0 publications

Attempts to Improve Berry Quality of flame seedless Grapevines

Attempts to Improve Berry Quality of flame seedless Grapevines

Evaluation of Phosphorus Sources and Rates on The Yield and Quality of Fertigated Potato Grown in Sandy Soil

Effect of nitrogen and potassium fertilization on productivity and fruit quality of ‘crimson seedless’ grape

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