scholarly journals Plant biomass and fruit quality response of greenhouse tomato under varying irrigation level and water quality

2021 ◽  
pp. 716-724
Author(s):  
Jeet B. Chand ◽  
Guna Hewa ◽  
Ali Hassanli ◽  
Baden Myers
Keyword(s):  
Water Quality ◽  
Soil Moisture ◽  
Fruit Quality ◽  
Deficit Irrigation ◽  
Plant Biomass ◽  
Field Capacity ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Irrigation Level ◽  
Greenhouse Tomato

The impact of water quality with varying deficit irrigation level on the plant biomass and fruit quality parameters of greenhouse tomato (Lycopersicon esculentum L. cv Izmir) was investigated. A pot-based experiment was carried out over two growing seasons (2017-2018 and 2018-2019). Three water qualities: groundwater, recycled wastewater and an equal mix of both were applied in four irrigation scenarios which aimed to maintain soil moisture levels at 60%, 70%, 80% and 100% of field capacity. A surface drip irrigation system was designed maintaining irrigation frequency of two days. Results showed that both water quality and deficit irrigation significantly affected plant biomass. The fresh fruit weight was rather uniform, ranged from 53.2 to 85.4 gram and found highest in full irrigation. Most of the fruit quality parameters were not significantly affected by water quality.The significantly higher values of total soluble solid (7.87 degree brix), fruit firmness (9.28 kg/cm2), fruit pH (4.24) and vitamin C content (68.33 mg/kg) were measured in treatments maintaining soil moisture content at 60% of field capacity (most water-stressed conditions). Based on these findings, it recommended that by adopting deficit irrigation and maintaining soil moisture at 60% of field capacity, fruit quality parameters can be significantly improved. In contrast, fresh fruit weight and plant biomass were reduced.

scholarly journals Effects of Various Quantities of Three Irrigation Water Types on Yield and Fruit Quality of ‘Succary’ Date Palm

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 796
Author(s):  
Mohamed A. Mattar ◽  
Said S. Soliman ◽  
Rashid S. Al-Obeed
Keyword(s):  
Soil Water ◽  
Fruit Quality ◽  
Irrigation Water ◽  
Deficit Irrigation ◽  
Date Palm ◽  
Saline Water ◽  
Irrigation Level ◽  
Water Types ◽  
Palm Trees

A field experiment was conducted on date palm trees (Phoenix dactylifera ‘Succary’) cultivated on sandy loam soil from 2017 to 2018. This study investigated the effects of providing water of three different qualities, namely freshwater (FR) and two saline water sources: reclaimed wastewater (RW) and well-water (WE) applied through three irrigation levels representing 50% (I50), 100% (I100), and 150% (I150) of crop evapotranspiration (ETc), on the soil water and salt distribution patterns, yield, water productivity (WP), and fruit quality of the ′Succary′ date palm. The electrical conductivity (ECw) of FR, RW, and WE were 0.18, 2.06, and 3.94 dS m−1, respectively. Results showed that WE applied by the I150 treatment had the highest soil water content, followed by RW used in the I100 irrigation level and FR with I50, whereas the soil salt content was high for WE applied in the I50 level and low for FR applied by the I150 treatment. Deficit irrigation (I50) of date palms with either RW or WE reduced date yields on average 86 kg per tree, whereas the yield increased under over-irrigation (I150) with FR to 123.25 kg per tree. High WP values were observed in the I50 treatments with FR, RW, or WE (on average 1.82, 1.68, and 1.67 kg m−3, respectively), whereas the I150 treatment with each of the three water types showed the lowest WP values. Fruit weight and size were the lowest in the full irrigation (I100) with WE, whereas the I150 treatment with RW showed the highest values. There were no significant differences in either total soluble solids (TSS) or acidity values when the irrigation level decreased from 100% to 50% ETc. Compared with both I50 and I100 treatments, reduced values of both TSS and acidity were observed in the I150 treatment when ECw decreased from 3.94 to 0.18 dS m−1,. Fruit moisture content decreased with the application of saline irrigation water (i.e., RW or WE). Total sugar and non-reducing sugar contents in fruits were found to be decreased in the combination of RW and I150, whereas the 50% ETc irrigation level caused an increment in both parameters. These results suggest that the application of deficit irrigation to date palm trees grown in arid regions, either with FR or without it, can sufficiently maximize WP and improve the quality of fruits but negatively affects yield, especially when saline water is applied. The use of saline water for irrigation may negatively affect plants because of salt accumulation in the soil in the long run.

scholarly journals Farklı Sulama Düzeyi ve Biyoaktivatör Uygulamalarının ‘Rubygem’ Çilek Çeşidinde Meyve Kalite Özellikleri Üzerine Etkileri

2017 ◽  
Vol 5 (10) ◽  
pp. 1221
Author(s):  
Mehmet Ali Sarıdaş ◽  
Burçak Kapur ◽  
Eser Çeliktopuz ◽  
Sevgi Paydaş Kargı
Keyword(s):  
Quality Parameters ◽  
Fruit Weight ◽  
Eating Quality ◽  
Crop Canopy ◽  
Irrigation Level ◽  
Surface Evaporation ◽  
Class A ◽  
Acid Ratio ◽  
Irrigation Levels ◽  
Class A Pan

The effect of irrigation and bio-stimulant (ComCat) applications on fruit quality parameters at the ‘Rubygem’ strawberry variety was investigated. The amounts of irrigation water applied were 0.50, 0.75, 1.00 and 1.25 times of water surface evaporation measured Class A pan placed over the crop canopy and the corresponding regimes were denoted as IR50, IR75, IR100 and IR125. Furthermore, bio-stimulant is applied four times with three weeks interval, approximately two months after planting. Applications of bio-stimulant were not efficient on examined parameters. Decreasing of the irrigation levels were significantly increased TSS and sugar/acid ratio which affects the fruit taste. The highest TSS and sugar/acid ratio was determined at IR50 plot with 9.42% and 21.7 values, respectively. However, fruit weight was significantly decreased except of IR100 plot. Moreover, deficient irrigation (IR50 and IR75) may cause a decrease at fruit weight. Recently, it could be crucial strategy to improve sugar and sugar/acid ratio which were prominent for consumers on the eating quality. Also, improving fruit taste with bio-stimulant application at optimum irrigation level (IR100) without any decreasing of fruit weight was determined.

scholarly journals Effect of Pre-Harvest Gibberellic Acid and Calcium Application on Post-Harvest Behaviour of Subtropical Peaches

2018 ◽  
Vol 6 (1) ◽  
pp. 78-84
Author(s):  
Shashi K. Sharma
Keyword(s):  
Shelf Life ◽  
Fruit Quality ◽  
Foliar Application ◽  
Calcium Nitrate ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Fruit Characteristics ◽  
Peach Fruit ◽  
Shelf Life Studies ◽  
Quality And Shelf Life

Shorter shelf life and faster deterioration of fruits after harvest are the major constraints with the peach production in the subtropical regions. Pre-harvest application of GA3 and chloride & nitrate of calcium were tried in a RBD experiment for enhancing peach fruit quality and reducing fruit deterioration during shelf life studies of five subtropical peach cultivars. At harvest fruit quality parameters viz. TSS, acidity, firmness etc. were influenced greatly by the treatments. Other physical properties of the fruit such as fruit weight, size and yield were not influenced much. Physiological weight loss during storage and the deterioration of other fruit characteristics were considerably lowered by calcium treatments. Foliar application of Calcium nitrate (1%) was found to be superior over calcium chloride (2%) for improving fruit quality and shelf life.

scholarly journals Influence of Ascophyllum nodosum extract, homobrassinolide and triacontanol on fruit retention, yield and quality of mango

2021 ◽  
Vol 42 (4) ◽  
pp. 1085-1091
Author(s):  
A. Dash ◽  
◽  
D. Samant ◽  
D.K. Dash ◽  
S.N. Dash ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Foliar Application ◽  
Block Design ◽  
Ascophyllum Nodosum ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Fruit Growth ◽  
Yield And Quality ◽  
Randomized Block Design

Aim: To evaluate the efficacy of foliar application of Ascophyllum nodosum extract, homobrassinolide, and triacontanol for improving fruit retention, yield, and quality in mango. Methodology: The experiment was laid out in a randomized block design with 10 treatments, comprising Ascophyllum nodosum extract (1000, 3000, and 5000 ppm), homobrassinolide (0.1, 0.3, and 0.5 ppm), triacontanol (1, 3, and 5 ppm), and water as control. Treatments were foliar sprayed at panicle initiation, pea, and marble stages of fruit growth. Observations were recorded on flowering, fruiting, yield, and fruit quality parameters. Results: All the treatments of Ascophyllum nodosum extract and triacontanol exhibited significant improvement in fruit retention, fruit weight, yield, and fruit quality parameters over control. However, 3000 and 5000 ppm Ascophyllum nodosum extract treatments outperformed all the treatments of triacontanol. Plants sprayed with 5000 ppm Ascophyllum nodosum extract recorded the maximum value for fruit retention (48.15, 36.74, 29.48, and 25.76% at 3, 6, 9, and 12 weeks after pea stage, respectively), number of fruits (133.25 per tree), fruit weight (188.84 g per fruit), and yield (25.16 kg per tree), whereas the lowest values were recorded under control. With respect to fruit quality, 3000 ppm ANE produced the fruits with the highest TSS (19.62 °B), whereas the highest TSS/acid ratio was recorded with 5000 ppm ANE (62.29) treatment. Interpretation: In mango, foliar application of Ascophyllum nodosum extract (3000-5000 ppm) thrice at panicle initiation, pea, and marble stages of fruit growth is effective for reducing fruit drop and enhancing quantum and quality of produce.

scholarly journals Influence of Regulated Drip Irrigation on Productivity and Physicochemical Traits of Tomato ‘Tofane’ under Hot Desert Climate

2020 ◽  
Vol 28 (1) ◽  
pp. 93-100
Author(s):  
Chenafi Azzeddine ◽  
Bachir Bey Mostapha ◽  
Chennafi Houria
Keyword(s):  
Water Content ◽  
Fruit Quality ◽  
Drip Irrigation ◽  
Deficit Irrigation ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Stage Iii ◽  
Regulated Deficit Irrigation ◽  
Desert Climate

AbstractThe impact of regulated drip-irrigation on productivity and fruit quality of tomato ‘Tofane’ has been studied under a warm dry desert climate in southern Algeria. Yield, fruit weight and size, water content and parameters of fruit quality – total soluble solids, phenolic compounds, carotenoids, vitamin C, pH and titratable acidity were determined. Two irrigation treatments were applied in 2012 and 2013: T1, optimal irrigation (100% evapotranspiration – ETc) during the whole growth period (growth stages I, II and III); T2, optimal irrigation during I and II stages, and regulated deficit irrigation (67% ETc) during stage III (from fruit set to full fruit maturity of first and second bunch). T1 treatment during the whole season showed the highest values of soil water potential (Ψsoil), between −0.02 MPa and −0.06 MPa, on depths of 0.3 and 0.6 m, respectively. During stage III, regulated deficit irrigation caused the lowest Ψsoil values, which were between −0.1 MPa and −0.12 MPa on a soil depth of 0.3 and 0.6 m, respectively. Deficit irrigation caused significant decrease of water content in fruits and not significant decrease of fruit weight and size, as well as fruit yield while water saving for irrigation amounted to 10%. Comfort-irrigated tomato plants produced fruits containing significantly higher titratable acidity, total soluble solids and vit. C content. There was a tendency to decrease carotenoid content and increase phenolic content in both years of the study. Due to the possibility of water saving with not significant yield decrease, it seems that the reduction of water use in growth stage III would be an adequate strategy for tomato cultivation in hot, dry climate.

scholarly journals Effects of Irrigation on Wine Grape Growth and Fruit Quality

2000 ◽  
Vol 10 (1) ◽  
pp. 162-168 ◽  
Author(s):  
Richard Allen Hamman ◽  
Imed Eddine Dami
Keyword(s):  
Soil Moisture ◽  
Fruit Quality ◽  
Cold Hardiness ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Irrigation Management ◽  
Management Strategies ◽  
Field Studies ◽  
Fruit Weight ◽  
Wine Quality

Field studies were conducted to determine the effect of three drip irrigation regimes on grapevine growth, juice and wine quality, soil moisture, cold hardiness of bud and cane tissues and soluble sugar content of cortical cane tissues of Vitis vinifera, Linnaeus `Cabernet Sauvignon'. This study was developed to help provide some irrigation management strategies that would improve fruit quality and reduce excessive vigor. Irrigation treatments of 192, 96, and 48 L (51, 25, and 13 gal) per vine per week were initiated at bud break until veraison (initiation of berry color) and then reduced by 25% through harvest. Significant differences of fruit weight per vine, crop load, soil moisture, average berry and cluster weight, shoot length and pruning weight per meter of canopy row were observed among treatments. Juice and wine compositions and wine color were also significantly different; however, cold hardiness and soluble sugar contents did not differ between treatments.

scholarly journals Effect of a nanotechnology-based foliar fertilizer on the yield and fruit quality in an apple orchard

2021 ◽  
Vol 27 ◽  
Author(s):  
Á. Csihon ◽  
I. Gonda ◽  
I. J. Holb
Keyword(s):  
Fruit Quality ◽  
Nutrient Management ◽  
Fruit Production ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Apple Orchard ◽  
Leaf Length ◽  
Surface Color ◽  
Foliar Fertilizer ◽  
The Third

Nutrient management is a determining element of the technology in fruit production. Significance of foliar fertilization has been increased continuously over the last years, as it can improve directly the vegetative and generative performance of the trees. In this study we aimed to evaluate the effect of a nanotechnology-based foliar fertilizer (Bistep) with 1, 3, and 5 l/ha dosages on the yield and fruit quality parameters in an apple orchard during 2016 and 2018. According to our results, crop load increased with 29% in the third year of the experiment with the application of 5 l/ha Bistep treatment compared to the control treatments. Fruit weight was also improved in each year, as values of fruit weight in all treatments were higher than the control one (3.0-13.0% growth). Fruit surface color increased with 2-18% due to the foliar fertilizer. During the three years, leaf length was 9.5-9.9 mm on the control trees, as 9.8-10.4 mm was measured on the fertilized ones. In conclusion, yield and fruit quality can be improved in apple orchard using a nanotechnology-based foliar fertilizer.

scholarly journals Effects of Prohexadione-Ca and GA4+7 on Scarf Skin and Fruit Maturity in Apple

HortScience ◽  
2006 ◽  
Vol 41 (7) ◽  
pp. 1602-1605 ◽  
Author(s):  
Steven McArtney ◽  
Dave Ferree ◽  
John Schmid ◽  
J.D. Obermiller ◽  
A. Green
Keyword(s):  
Fruit Quality ◽  
Economic Benefits ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Single Application ◽  
Early Season ◽  
Fruit Maturity ◽  
Negative Effect ◽  
Series Of Experiments

A series of experiments were undertaken to compare the effects of individual and combined applications of GA4+7 and prohexadione-Ca (P-Ca) on scarf skin and fruit quality parameters on red strains of `Rome Beauty' and `Gala' apples. Three applications of GA4+7 at 10-day intervals beginning at petal fall (PF) significantly reduced scarf skin severity in all experiments. A single application of P-Ca at PF had no effect on scarf skin in one experiment but reduced scarf skin severity in two further experiments. Combining P-Ca with the first of three GA4+7 sprays as a tank mix reduced the severity of scarf skin more effectively than either material alone in two of three experiments at P < 0.05 and in all three experiments at P < 0.10. Combining P-Ca with the first application of GA4+7 as a tank mix generally reduced scarf skin as effectively as applying P-Ca and the first GA4+7 spray two days apart, although in one experiment, greater scarf skin control was achieved when P-Ca was applied 2 days after the first GA4+7 spray. A single application of P-Ca at PF consistently reduced, and three applications of GA4+7 consistently increased, mean fruit weight at harvest compared with the control. The economic benefits as a result of reducing scarf skin severity with P-Ca and GA4+7 sprays will need to be balanced against the negative effect of P-Ca on mean fruit weight. There is no antagonism between early season P-Ca and GA4+7 sprays for scarf skin control, and P-Ca may increase the efficacy of GA4+7 sprays for scarf skin control in apple.

scholarly journals Suitability of ‘Jonagold’ Apple Clones for Commercial Growing in Lithuania

2013 ◽  
Vol 67 (2) ◽  
pp. 215-218 ◽  
Author(s):  
Darius Kviklys ◽  
Nomeda Kviklienė ◽  
Nobērtas Ūselis
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Frost Damage ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Winter Hardiness ◽  
Test Panel

Seven apple clones of cv. ‘Jonagold’: ‘Red Jonaprince’, ‘Jonagold Boerekamp’, ‘Jonagored Supra’, ‘Jonaveld’, ‘Jonagold DeCoster’, ‘Jonagold Novajo’ and ‘Jonabel’ were tested at the Institute of Horticulture in Babtai in 2003-2011. Significant differences among cv. ‘Jonagold’ clones were recorded in yield, fruit quality parameters and winter hardiness. The highest total yield was recorded for cvs. ‘Jonagold Boerekamp’ and ‘Red Jonaprince’, the lowest for cv. ‘Jonagold Novajo’. Average fruit weight of cv. ‘Jonagold Novajo’ was significantly lower. ‘Red Jonaprince’ fruits had the best colouration. ‘Jonagored Supra’ fruits had the best appearance according to the test panel. During winter 2009-2010, 30% of ‘Red Jonaprince’ trees suffered frost damage. No losses were recorded for ‘Jonagored Supra’. During the experiment tree losses due to frost and disease damages were 25-60% and depended on the clone.

Effects of the combined application of biomaterial amendments and polyacrylamide on soil water and maize growth under deficit irrigation

2019 ◽  
Vol 99 (2) ◽  
pp. 182-194
Author(s):  
Yajin Hu ◽  
Nini Guo ◽  
Robert L. Hill ◽  
Shufang Wu ◽  
Qin’ge Dong ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Water ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Field Capacity ◽  
Soil Physical Properties ◽  
Soil Conditions ◽  
Irrigation Level ◽  
Maize Growth ◽  
Irrigation Levels

Combined applications of mixed biomaterial amendments and polyacrylamide (MBAP) to maize in semiarid areas have the potential to improve soil physical properties such that improved crop performance may be obtained under deficient irrigation management. In this study, three MBAP applications were C0 (conventional N fertilization application) and C2 and C4 (MBAP applied at rates of 2 and 4 t ha−1, respectively); three irrigation levels were W3 (nearly full irrigation, 85%–100% of field capacity), W2 (light deficit irrigation, 65%–75% of field capacity), and W1 (medium deficit irrigation, 55%–65% of field capacity). Under the same irrigation level, the MBAP significantly decreased soil bulk densities and increased soil hydraulic conductivities and soil water contents. The effects of irrigation levels on soil bulk densities and soil saturated hydraulic conductivities were not significant. Consequently, MBAP improved soil conditions for maize growth and increased grain and biomass yields, especially at the two deficit irrigation levels. Compared with that of C0, grain yields for C2 and C4 were increased by 52.8% and 39.3% under W2, and by 23.5% and 13.7% under W1, respectively. The MBAP and irrigation had significant interaction effects on evapotranspiration during sowing to jointing and on plant heights at 32 d after sowing. The incorporation of MBAP (2 t ha−1) and chemical fertilizer (111.8 kg N ha−1) resulted in the greatest yields under light deficit irrigation and seemed the best approach to improve soil physical properties and sustain maize productivity using limited water resources in dryland regions.

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