scholarly journals Summer Pruning Affects Yield and Improves Fruit Quality of `McIntosh' Apples

1990 ◽  
Vol 115 (3) ◽  
pp. 356-359 ◽  
Author(s):  
Wesley R. Autio ◽  
Duane W. Greene
Keyword(s):  
Fruit Quality ◽  
Malus Domestica ◽  
Total Yield ◽  
Fruit Weight ◽  
Net Returns ◽  
Yield And Quality ◽  
Time Required

The effects of summer pruning on the yield and quality of apples (Malus domestica Borkh.) from mature `Rogers McIntosh'/M.7 trees were assessed in 1986-88. Summer pruning from 1 July through 1 Sept. enhanced red coloring and increased the percentage of the crop graded U.S. Extra Fancy. Fruit weight was not altered by summer pruning. Total yield was reduced by summer pruning only in 1 year, however, in no year was the harvested yield reduced. The portion of the crop that was picked in the first harvest was increased by summer pruning. Dormant-pruning time was decreased by summer pruning, and the total time required for pruning was increased only 1 of the 2 years where it was measured. Summer pruning and daminozide treatment significantly increased the estimated net returns.

scholarly journals Effect of different staking methods and stem pruning on yield and quality of summer tomato

2016 ◽  
Vol 41 (3) ◽  
pp. 419-432
Author(s):  
MS Alam ◽  
N Islam ◽  
S Ahmad ◽  
MI Hossen ◽  
MR Islam
Keyword(s):  
Fruit Quality ◽  
Fruit Set ◽  
Block Design ◽  
Total Yield ◽  
Point Of View ◽  
Fruit Firmness ◽  
Economic Point ◽  
Yield And Quality ◽  
Agriculture Research Institute

The study was carried out during summer of 2012 with BARI hybrid tomato 4, planted in the Olericulture farm of Bangladesh Agriculture Research Institute, Joydebpur, Gazipur, Bangladesh to find out the response of plants to some staking and pruning treatments on yield, fruit quality and cost of production. A two factor experiment consisting of three staking methods and four level of pruning, laid out in complete block design with three repetitions. Plants were staked on inverted „V? shaped staking, high platform and string. The plants were pruned to two stem, three stem, four stem and no pruning as control. Results showed that significantly the highest total number of fruits per plant (37.1), marketable fruits per plant (33.7), yield per plant (1.68 kg) and total yield (44.6 t/ha) were produced by the plants having the treatment string staking with four stem. The highest fruit set (43.50%) was found in the plants staking with string having three stems. Plants grown on string staking allowing two stem gave the maximum length (4.71 cm), diameter (4.83 cm) and weight (53.4g) of single fruit as well as maximum fruit firmness (3.43 kg-f cm-2). From the economic point of view, it was apparent that summer tomato produced by string staking with four stem pruning exhibited better performance compared to other treatment combinations in relation to net return and BCR (2.10).Bangladesh J. Agril. Res. 41(3): 419-432, September 2016

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 YIELD AND QUALITY OF TRIPLOID WATERMELON HYBRIDS.

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 859f-859
Author(s):  
Donald N. Maynard ◽  
Gary W. Elmstrom
Keyword(s):  
Total Yield ◽  
Fruit Weight ◽  
The Other ◽  
Soluble Solids ◽  
Yield And Quality ◽  
Other Hand ◽  
Seedless Watermelon ◽  
Triploid Watermelon

Evaluations of 30 triploid (seedless) watermelon hybrids were conducted in the Spring 1989 season at Bradenton and Leesburg, Florida. There was considerable variation in relative cultivar yields at the two locations. However, consistency in some cultivars did occur. 'HMX 7924' produced the highest total yield and 'CFREC 88-2' had high total yields at both locations. On the other hand, 'ACX 882322', 'Fengshan No. 1', 'FMX 28', 'Fummy', 'Honeyheart', 'Nova', and 'NVH 4295' produced low total yields at both locations. Average fruit weight was high for 'Ssuper Sweet Brand 5244', 'CFREC 88-4', and 'HMX 7924' whereas 'ACX 882322', 'FMX 28', 'Fengshan No. 1', 'Nova', and 'PSR 49087' produced low average fruit weight. Soluble solids exceeded 11% in all entries at Bradenton whereas two entries were lower than 10% at Leesburg. Several experimental lines out performed the named cultivars suggesting that future introductions will be superior to those already available.

scholarly journals Deficit Irrigation to Enhance Fruit Quality of the ‘African Rose’ Plum under the Egyptian Semi-Arid Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1405
Author(s):  
Islam F. Hassan ◽  
Maybelle S. Gaballah ◽  
Hanan M. El-Hoseiny ◽  
Mohamed E. El-Sharnouby ◽  
Shamel M. Alam-Eldein
Keyword(s):  
Fruit Quality ◽  
Deficit Irrigation ◽  
Total Yield ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Limited Information ◽  
Yield And Quality ◽  
Arid Conditions ◽  
Semi Arid

Evolved in South Africa and released to market in 2009, the ‘African Rose’ plum has been introduced and grown under the Egyptian semi-arid conditions since 2010. Within that time, this cultivar has faced significant fruit quality issues, mainly poor color and low total soluble solids (TSS). Several trials using foliarly applied growth regulators have been conducted, but with little conspicuous results on fruit yield and quality. There is very limited information about the relationship between irrigation regime and fruit quality for this cultivar. Therefore, a field experiment was conducted to study the effect of deficit irrigation on the quality of the ‘African Rose’ plum during the 2019 and 2020 seasons. Five-year-old hedge growing trees were subjected to three deficit irrigation regimes: 100% (control), 80%, and 60% of the crop evapotranspiration (ETc) after the pit hardening stage until the end of the harvest season (May to June period) were evaluated. Results indicated that deficit irrigation positively enhanced the levels of abscisic acid (ABA), total phenols, and anthocyanins with improved fruit TSS and maturity index, although fruit yield, acidity, size, and firmness were decreased. Deficit irrigation could be suggested as a sustainable novel solution to improve the fruit quality of the ‘African Rose’ plum grown under the semi-arid conditions of Egypt. Although the total yield and some quality characteristics were not improved, the early harvested fruit with enhanced color and taste could be a good start for additional research to solve other quality-related issues under such conditions.

scholarly journals Interaction of Supplementary Light and CO2 Enrichment Improves Growth, Photosynthesis, Yield, and Quality of Tomato in Autumn through Spring Greenhouse Production

HortScience ◽  
2019 ◽  
Vol 54 (2) ◽  
pp. 246-252 ◽  
Author(s):  
Tonghua Pan ◽  
Juanjuan Ding ◽  
Gege Qin ◽  
Yunlong Wang ◽  
Linjie Xi ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Photosynthetic Pigment ◽  
Co2 Enrichment ◽  
Dry Weight ◽  
Fruit Weight ◽  
Interactive Effects ◽  
Greenhouse Production ◽  
Tomato Production ◽  
Yield And Quality

During the autumn/spring “off” season, yield and quality of tomatoes are often affected by insufficient CO2 and low light in greenhouse production. Although tomato is one of the most widely cultivated vegetables, few studies have investigated the interactive effects of supplementary light and CO2 enrichment on its growth, photosynthesis, yield, and fruit quality in greenhouse production. This study investigates the effects of supplementary light (200 ± 20 μmol·m–2·s–1) and CO2 enrichment (increases to about 800 μmol·mol–1), independently and in combination, on these parameters in autumn through spring tomato production. Compared with tomatoes grown under ambient CO2 concentrations and no supplementary light (CaLn), supplementary light (CaLs) and supplementary light and CO2 enrichment (CeLs) significantly promoted growth and dry weight accumulation. Meanwhile, CO2 enrichment (CeLn) and CaLs significantly improved photosynthetic pigment contents and net photosynthetic (Pn) rates, whereas CeLs further improved these and also increased water use efficiency (WUE). CeLn, CaLs, and CeLs significantly increased single fruit weight by 16.2%, 28.9%, and 36.6%, and yield per plant by 19.0%, 35.6%, and 60.8%, respectively. The effect of supplementary light on these parameters was superior to that of CO2 enrichment. In addition, CaLs and CeLs improved nutritional quality significantly. Taken together, CeLs promoted the greatest yield, WUE, and fruit quality, suggesting it may be a worthwhile practice for off-season tomato cultivation.

scholarly journals Production of paulista gherkin using trellis net support

2004 ◽  
Vol 61 (1) ◽  
pp. 43-46
Author(s):  
Valéria A. Modolo ◽  
Cyro Paulino da Costa
Keyword(s):  
Fruit Quality ◽  
Block Design ◽  
Total Yield ◽  
Fruit Production ◽  
Fruit Weight ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Plot Yield ◽  
Length Width ◽  
Single Cross Hybrids

Paulista gherkin is a new gherkin type obtained by crossing Cucumis anguria var. anguria x C. anguria var. longaculeatus. It differs from common gherkin in its fruits and leaves. Elite lines of Paulista gherkin present similar performance for total yield and fruit weight but some have distinctive characteristics, including fruit and leaf attributes. The combination of these characteristics through production of Paulista gherkin hybrids could be an alternative for fruit quality and/or yield improvement. The purpose of the present work was to compare the yield of Paulista gherkin lines and their hybrids grown on a trellis net under field conditions. Four lines and their six single-cross hybrids were evaluated for yield and fruit production using the trellised net production system. Seedlings were produced in polystyrene trays with 128 cells, and transplanted to the middle of 1.20 m wide beds. Plants were trained without pruning on netting having 0.1 x 0.1 m openings. The experiment was conducted in a randomized block design with four replicates and seven plants per plot. Yield was expressed as number of fruits and total weight of fruits per plot. Length, width and fruit flesh thickness were also evaluated, with five samples per plot in two harvesting times. Hybrids and their parental lines were similar in fruit yield and quality. The trellised net was suitable for Paulista gherkin production and provided adequate support to the plants. The trellis technique is suitable to make harvesting easier and to improve fruit quality.

scholarly journals Yield and Quality of Fertigated Papaya Fruits Submitted to Potassium Doses in Northeast Pará

2020 ◽  
Vol 8 (3) ◽  
pp. 280
Author(s):  
Valdeides Marques Lima ◽  
Joaquim Alves de Lima Junior ◽  
Antonia Benedita da Silva Bronze ◽  
William Lee Carrera de Aviz ◽  
Aristóteles Pires de Matos ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Soil Analysis ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Experimental Station ◽  
Yield And Quality ◽  
Randomized Design ◽  
Soluble Solid ◽  
Completely Randomized Design

The objective of this work was to evaluate the effect of potassium doses supplied via fertigation on yield and fruit quality of Solo papaya, cultivar THB. The experiment was installed in August 2018 in the Experimental Station of the Federal Rural University of Amazonia, Municipality of Igarapé-Açu, State of Para, Brazil, and lasted for 13 months. The experiment was conducted in completely randomized design with four replications and treatments applications started in the fifth month after planting. Treatments were four doses of K20 (160, 320, 480 and 640 kg K2O ha-1) that correspond to 50, 100, 150 and 200% of recommended dose based on soil analysis. Potassium was supplied in the form of KNO3, in the irrigation water, associated to the others fertilizers. During the five month harvest period, the papaya yield reached 22.3 t ha-1, fruit number was 67,776 fruit ha-1, fruit weight was about 418.6 g and soluble solid titratable acidity ratio as high as 13.9.

scholarly journals Effect of Potassium Levels on Productivity and Fruit Quality of Tomato (Lycopersicon esculentum L.)

2018 ◽  
Vol 5 (4) ◽  
pp. 102 ◽  
Author(s):  
Sofonias Hagos Woldemariam ◽  
Sewa Lal ◽  
Daniel Z. Zelelew ◽  
Mulugheta T. Solomon
Keyword(s):  
Specific Gravity ◽  
Fruit Quality ◽  
Dry Matter ◽  
High Energy ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Soluble Solids ◽  
Yield And Quality

Potassium has significant effect on quantity and quality of tomato yield because of its vital roles in photosynthesis, favoring high energy status and appropriate nutrient translocation and water uptake in plants. However, little is understood or it is being overlooked under Eritrean condition. Besides, poor soil fertility is among the major production constraints in Eritrea. The field experiment was therefore conducted to investigate the effect of potassium levels on productivity and fruit quality of tomato at Hamelmalo, Eritrea. The experiment was conducted in Randomized Complete Block Design with nine potassium levels (0, 50, 100, 150, 200, 250, 300, 350 and 400 kg K2O/ha) replicated thrice. Data was collected on yield and fruit quality parameters and they were subjected to one-way analysis of variance (1-way ANOVA). The results of this study revealed that potassium had significant effect in all yield and quality parameters studied. Fruit diameter, fruit weight per plant, total yield, total soluble solids, specific gravity and fruit dry matter content showed significant increase with an increase in potassium level from 0 to 150 kg K2O/ha and thereafter decreased while fruit moisture content was increased in the range of 150 - 400 kg K2O/ha. As a result, highest fruit weight (1.39 kg/plant), fruit yield (15.45 t/ha), total soluble solids (3.84 oBrix), specific gravity, (1.46) and fruit dry matter (5.68%) were recorded from 150 kg K2O/ha. Therefore it is recommended that potassium fertilizers should be used and balanced NPK fertilizers should be applied to improve yield and quality of tomato produced.

scholarly journals Effects of organic and inorganic nitrogen on growth, yield and quality of Sapota ‘Kalipatti’

2012 ◽  
Vol 20 (1) ◽  
pp. 55-64
Author(s):  
Varu Devashi
Keyword(s):  
Fruit Quality ◽  
Reducing Sugars ◽  
Inorganic Nitrogen ◽  
Growth Yield ◽  
Tree Height ◽  
Fruit Weight ◽  
Total Sugars ◽  
Yield And Quality ◽  
Castor Cake

ABSTRACT An experiment was conducted to study the effect of organic and inorganic nitrogen in the form of urea and castor cake on the growth, yielding and fruit quality of sapota trees. Nitrogen in the form of urea significantly influenced the vegetative growth of the trees. The greatest tree height (7.26 m), tree spread (8.11 m in N-S and 8.13 m in E-W directions), fruit weight (63.65 g), the number of fruit per tree (2627.56) and fruit yield per tree (163.30 kg) were obtained with the application of 900 g N/tree in the form of urea. However, that was found on a par with the application of 900 g N/tree in which 50% N was from urea and 50% from castor cake. Total sugars and reducing sugars content in fruit was found the highest in the 900 g N/tree treatment in which 25% N was from urea and 75% N from castor cake.

Effect of some growth regulators on yield and quality of sweetmelon and muskmelon

1982 ◽  
Vol 98 (3) ◽  
pp. 645-649 ◽  
Author(s):  
E. El-Kholy ◽  
H. Hafez ◽  
F. Naeem
Keyword(s):  
Growth Regulators ◽  
Indole Acetic Acid ◽  
Total Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Ascorbic Acid Concentration ◽  
Yield And Quality ◽  
Yield Quality ◽  
Better Than

SUMMARYThis study was carried out at Elminia University farm in two years (1978 and 1980) to evaluate the effect of some growth regulators on the production of sweetmelon and muskmelon. It was found that plants treated with some growth regulators were earlier and yielded better than untreated ones, except that in the first trial (1978), the total yield of plants treated with indole acetic acid (IAA) was less than that of the control. The highest early and total yields of both sweetmelon and muskmelon resulted from spraying ethrel on the foliage. Fruit weight and length and flesh thickness were increased by some growth substances compared with the control for both crops. Also, percentage of total soluble solids and ascorbic acid concentration increased markedly as a result of growth-regulator treatments for sweetmelon and muskmelon. Generally, two sprays of ethrel solution produced the most consistent effects on yield and yield quality in the two trials with both sweetmelon and muskmelon.

Sign in / Sign up

Export Citation Format

Share Document