scholarly journals Effect of mulching systems on fruit quality and phytochemical composition of newly developed strawberry lines

2012 ◽  
Vol 21 (2) ◽  
pp. 132-140 ◽  
Author(s):  
Li Fan ◽  
Valentine Roux ◽  
Claudine Dubé ◽  
Dennis Charlebois ◽  
Shutian Tao ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Nutritional Value ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Production ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Plastic Mulch ◽  
High Tunnels ◽  
Solids Content

The effects of three mulching systems on total yield, average yield per plant, average fruit weight, soluble solids content (SSC), titratable acidity (TA), firmness and oxygen radical absorbance capacity (ORAC) of two newly developed lines (‘Orléans’ and ‘Saint Pierre’), one advanced selection (‘SJ8976-1’) and two commonly used cultivars (‘Jewel’ and ‘Kent’) were evaluated. The studied mulching systems were: plastic mulch (PM), mulch with row cover (PMRC), and matted-row system (MRS). Results showed that plastic mulch with row cover (PMRC) generally increased yield per plant, average fruit weight, SSC, firmness and ORAC, but differences varied within harvest times. No significant differences in total yield and TA were observed under the selected mulching systems. Both PMRC and PM accelerated the harvest periods compared to MRS. ‘Kent’ and ‘Jewel’ had the highest total yield while ‘SJ8976-1’ and ‘St-Pierre’ had the highest average fruit weight. The highest SSC, TA and ORAC were found in ‘Jewel’. There was no interaction between the mulching systems and genotypes, indicating that the effect of production system is independent of cultivars. PMRC seems to be a better growing system, improving fruit quality and increasing the nutritional value of all genotypes. By allowing off-season fruit production in cool climates, PMRC can be an alternative method to the costly high tunnels.

scholarly journals Effects of Short Day Conditioning, Chilling and GA3 Treatments to Yield and Fruit Quality in Strawberry Plug Transplants Aiming Early Fruit Production

2013 ◽  
Vol 41 (1) ◽  
pp. 263
Author(s):  
Emine ÖZDEMİR ◽  
Nurettin KAŞKA ◽  
Kazim GÜNDÜZ ◽  
Sedat SERÇE
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Production ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Day Length ◽  
Fruit Characteristics ◽  
Short Day ◽  
Growing Seasons

In this study, we tested the effects of short day (SD), chilling (Ch) and gibberalic acid (GA3) treatments on the yield and fruit characteristics of ‘Camarosa’ and ‘Sweet Charlie’ plug plants under a freeze-protected greenhouse in Mediterranean conditions for two growing seasons in 2006-2007 and 2007-2008. The treatments included control (ambient day length and temperature); SD (8 h days) and ambient temperature; SD + Chilling (Ch) (18/12°C day/night temperatures); SD + Ch (10°C); SD + Ch (2°C); and, GA3 (10 ppm applied to the plants in November). In each growing season, the plug plants were planted in mid-August using bag culture. Yield, fruit weight, firmness, total soluble solids (SS), titratable acidity (TA), and SS/TA ratio were investigated. Considerable amounts of early yield (March and April) were recovered from ‘Sweet Charlie’; 116 and 72 g/plant in the first and second growing seasons, respectively. ‘Sweet Charlie’ also had consistently higher total yield than ‘Camarosa’ (457 vs. 400 g/plant in the 2006-2007 season and 446 vs. 406 g/plant in the 2007-2008 season). Treatment did not have a consistent effect on the fruit quality traits measured. The results indicated that although SD conditioning, Ch and GA3 treatments may have an effect on the total and early yield of strawberries, these effects may be cultivar-dependent and further regulated by environmental factors. Therefore, we propose that low-chilling varieties be utilized for early fruit production that can initiate flower buds in warmer, longer days.

Effects of Trichoderma harzianum on the yield and fruit quality of tomato plants (Lycopersicon esculentum) grown in an unheated greenhouse

2006 ◽  
Vol 46 (1) ◽  
pp. 131 ◽  
Author(s):  
U. Bal ◽  
S. Altintas
Keyword(s):  
Fruit Quality ◽  
Trichoderma Harzianum ◽  
Root Zone ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Marketable Yield ◽  
Growing Media ◽  
Growing Period

Trichoderma harzianum was applied to seedling growing media (a peat and soil-based mixture or greenhouse soil) at the time of sowing, at transplanting to vials and at planting. The factorial experiment using 2 seedling growing media, 2 cultivars and 4 dosages of T. harzianum at 0 (control), 4 g/m2, 10 g/m2 and 24 g/m2 showed that the Trichoderma dosage had no significant effect on the yield or fruit quality. None of the 3 factor interactions between the criteria studied, that is, total yield, marketable yield, early yield, individual fruit weight, total soluble solids and titratable acidity, were significant except for fruit diameter. The 3 factor combination of Peat × Belleveu F1 × 10 g/m2 resulted in the highest total yield, marketable yield and early yield with 1552, 1373 and 681 g/plant, respectively. The interaction between media and cultivars was significant for all the yield characteristics studied. However, the main effect of T. harzianum on early yield was the highest at 4 g/m2, producing 527 g/plant in comparison to the control with 374 g/plant. It was, therefore, hypothesised that the positive effect of T. harzianum, observed in the early yield, may be extended to the whole growing period by further applications, that is, by periodical renewal of the T. harzianum population at the root zone.

scholarly journals GA3—INDUCED FRUIT SET OF RABBITEYE BLUEBERRY

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 689c-689
Author(s):  
Raguel Cano—M ◽  
Rebecca L. Darnell
Keyword(s):  
Fruit Quality ◽  
Fruit Development ◽  
Fruit Set ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Full Bloom ◽  
Development Period

The effects of different GA3 concentrations and application times on fruit set, fruit development period, and fruit quality in rabbiteye blueberry (Vaccinium ashei Reade) were studied. Flower clusters were sprayed with 100 or 250 ppm GA3 at 90% full bloom and again 7 days later, or with 125 ppm GA3 at 90% full bloom and again 7, 21, and 42 days later, under greenhouse conditions. Fruit set was monitored every 10 days and fruit weight, fruit development period, soluble solids, and titratable acidity were measured at harvest. Fruit set in GA3 treatments averaged 69 to 76% compared to an average of 43% for the pollinated control. Weight of GA3 treated berries averaged 1.2, g while that of pollinated berries averaged 2.0 g. However, calculated total yield was greater for the GA3 treatments compared to the pollinated control, averaging 244 and 206 g/treatment, respectively. GA3 increased the fruit development period by 2 to 11 days, depending on the treatment. Soluble solids and titratable acidity were not affected by any treatment.

Effect of Weed-Free Strip Width on Newly Established ‘Navaho' Blackberry Growth, Yield, and Fruit Quality

2014 ◽  
Vol 28 (2) ◽  
pp. 426-431 ◽  
Author(s):  
Stephen L. Meyers ◽  
Katherine M. Jennings ◽  
David W. Monks ◽  
Wayne E. Mitchem
Keyword(s):  
Fruit Quality ◽  
Growth Yield ◽  
Titratable Acidity ◽  
Field Studies ◽  
Fruit Weight ◽  
Strip Width ◽  
Soluble Solids ◽  
Research Station ◽  
Acid Ratio ◽  
Solids Content

Field studies were conducted in 2011 and 2012 at the Sandhills Research Station near Jackson Springs, NC to determine the influence of weed-free strip width (WFSW) on newly planted ‘Navaho' blackberry plant growth, fruit yield, and fruit quality. Treatments consisted of 0-, 0.3-, 0.6-, 1.2-, 1.8-, and 2.4-m WFSW. Predicted blackberry yield increased from 718 to 1,015 kg ha−1at WFSW of 0 to 2.4 m. The currently recommended WFSW of 1.2 m resulted in a blackberry yield of 1,013 kg ha−1. Predicted individual blackberry fruit weight displayed a positive linear response to WFSW and increased from 3.1 to 3.6 g fruit−1at WFSW of 0 to 2.4 m. Soluble solids content (SSC) of dull black blackberry fruit was greatest (15.1 Brix) when WFSW was 0 m. Relative to a WFSW of 0 m, SSC was reduced 2.3 to 3.4% as WFSW increased from 0.3 to 2.4 m, respectively. WFSW did not influence shiny black blackberry fruit SSC, nor titratable acidity, sugar-to-acid ratio, or pH of shiny or dull black blackberry fruit or primocane number, length, and stem caliper.

Strategies for breeding a new greenhouse crop, the pepino (Solanum muricatum Aiton)

1999 ◽  
Vol 79 (2) ◽  
pp. 269-275 ◽  
Author(s):  
J. Prohens ◽  
F. Nuez
Keyword(s):  
Fruit Quality ◽  
Environmental Variability ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Important Variation ◽  
Solanum Muricatum ◽  
Solids Concentration ◽  
Genotypic Correlations

The introduction of pepino (Solanum muricatum Aiton) as a new greenhouse crop relies on the development of clones that produce high fruit yields with an increased soluble solids concentration (SSC). We have evaluated two breeding strategies aimed at obtaining new, improved clones of this heterozygous vegetatively propagated crop: selection in the segregating generation F1 (hybrids) or in the first generation of selfing (selfings). We recorded the total yield, SSC, fruit weight, shape, firmness, titratable acidity and ascorbic acid concentration in seven populations of hybrids and in five populations of selfings. Four populations of clonal replicates were used to estimate environmental variability. Total yield and its heritability were higher in the hybrids than in the selfings. Expected responses to selection showed that it might be possible to select clones with a yield higher than 80 t ha−1 with selection pressures lower than 5% in some hybrid populations. Heritabilities for SSC were moderate, but clones with a SSC higher than 9.0 °Brix could be selected. We also found an important variation in the other characters studied, indicating that improved clones could be selected for all of them. Values for genotypic correlations between characters were very variable. In most hybrid populations, however, we did not find negative genotypic correlations between yield and fruit quality characters. Our results indicate that new hybrid clones of pepino that exceed present clones in yield and fruit quality might be obtained. Key words: New crops, plant breeding, clonal propagation, hybrids, selfings

scholarly journals Rootstock Affects the Fruit Quality of ‘Early Bigi’ Sweet Cherries

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2317
Author(s):  
Valter Martins ◽  
Vânia Silva ◽  
Sandra Pereira ◽  
Sílvia Afonso ◽  
Ivo Oliveira ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Growth Yield ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Sensory Profile ◽  
Soluble Solids ◽  
Foliar Nutrition ◽  
Yield Efficiency ◽  
Sweet Cherries ◽  
Solids Content

The cherry rootstock influences the performance of the scion cultivar. It has an effect on cherry fruit quality, tree growth, yield and yield efficiency and floral and foliar nutrition. In this work, the influence of Saint Lucie 64 and Maxma 60 rootstocks on the fruit quality traits of cv. Early Bigi was evaluated. For this, several parameters, namely fruit weight (FW) and size (FS), soluble solids content (SSC), pH, titratable acidity (TA), flesh firmness (FF), epidermis rupture force (ERF), color and sensory profile, were assessed. Results showed that the fruits from trees on Saint Lucie 64 presented higher FF and ERF values and, consequently, better texture. On the other hand, fruits from trees on Maxma 60 showed sweeter cherries (higher SSC). Moreover, these trees presented the darkest cherries (lower values of L*, a*, b*, C* and hue°) and the highest SSC. Therefore, although the trees on Saint Lucie 64 produced firmer cherries, it was those with the Maxma 60 rootstock that produced sweeter and darker fruits. In conclusion, both scion–rootstock combinations proved to be good options for the region of Resende.

scholarly journals Fruit Quality Attributes of Sour Cherry Cultivars

ISRN Agronomy ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Tomo Miloševic ◽  
Nebojša Miloševic
Keyword(s):  
Aspect Ratio ◽  
Physical Properties ◽  
Fruit Quality ◽  
Geometric Mean ◽  
Sour Cherry ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Ripening Index ◽  
Solids Content

The aim of this study is the evaluation of two sour cherry cultivars (“Oblačinska”, “Cigančica”) grown at Cacak (Western Serbia) by determining main physical properties such as fruit linear dimensions, arithmetic and geometric mean diameter, fruit volume, sphericity, surface area, and aspect ratio at the commercial stage. Also, some attributes related to fruit quality (fruit weight, soluble solids, total acidity, ripening index, and pH juice) were evaluated at different ripening stages. “Oblačinska” shows better physical properties, except aspect ratio, when compared with “Cigančica”. Sphericity was similar in both cultivars. Fruit weight, soluble solids content, ripening index, and pH increased during ripening process, whereas titratable acidity decreased over above process. In general, “Oblačinska” had better chemical composition than “Cigančica”. Finally, fruit of both cultivars is suitable for processing and also for fresh consumption.

scholarly journals Impacts of the substrate medium on tomato yield and fruit quality in soilless cultivation

2008 ◽  
Vol 35 (No. 2) ◽  
pp. 83-89 ◽  
Author(s):  
G. Tzortzakis N ◽  
D. Economakis C
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Matter Content ◽  
Soluble Solids ◽  
Dry Matter Content ◽  
Soilless Culture ◽  
Tomato Yield

The performance and suitability of different substrates for the soilless culture of tomato plants (<I>Lycopersicum esculentum</I> Mill., cv. Belladona) were studied over a 5-month period in a closed soilless culture system employing five different substrates (perlite, pumice or maize and their mixtures with 50% shredded maize stems in an unheated glasshouse). Plants grown in a maize stem-containing medium produced earlier fruits, followed by pumice. Plants grown in pumice and perlite substrates obtained lower total yield; a higher yield was associated with the addition of maize shredded stems. Pumice + 50% maize and 100% maize produced higher total number of fruits per plant. Fruit quality parameters such as mean fruit weight, fruit firmness, total soluble solids, titratable acidity, ascorbic acid and carotenoids were influenced by the treatment, while EC, pH and dry matter content were not. The results suggest that the addition of maize in perlite and pumice could improve inorganic substrates properties for tomato soilless culture, leading to higher yields and better fruit quality.

scholarly journals INFLUENCE OF CULTIVAR AND FERTILIZATION WITH VERMICOMPOST ON FRUIT QUALITY AND YIELD IN LONICERA SPP.

2021 ◽  
Vol 10 (19) ◽  
pp. 71-79
Author(s):  
Ivona Enescu (Mazilu) ◽  
Mirela Călinescu ◽  
Emil Chitu ◽  
Mădălina Butac ◽  
Monica Sturzeanu ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Organic Fertilizer ◽  
Fruit Production ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Lonicera Caerulea ◽  
Highest Weight ◽  
Cielab System ◽  
Fruit Growing ◽  
Solids Content

This paper aims to study the influence of cultivar and vermicompost (organic fertilizer) treatments on fruit quality traits (fruit weight, flesh firmness, juice pH, chromatic coordinates in CIELab system, chlorophyll fluorescence) and plant productivity on Lonicera caerulea L. The experiment was carried out between 2019 and 2020, at the Research Institute for Fruit Growing Pitesti, Romania. To achieve these, three honeysuckle cultivars ('Cera', 'Loni', and 'Kami') were treated with four fertilizer doses: 0.2, 0.3, 0.75, and 1.0 L per plant. We found that 'Cera' cultivar was characterized by fruits with the highest weight (0.67 g) and firmness (13.71 units Bareiss HPE-II-FFF), 'Kami' cultivar, had the highest total soluble solids content (17.09 °Brix), and 'Loni' was the most productive (33.33 g per plant). Compared to untreated plants, fertilization with vermicompost in a dose of 0.2 L per plant increased fruit weight by 14.81%, pH by 9.79%, and fruit production per plant by 36.65%, indicating that fertilization with vermicompost could be used in ecological honeysuckle culture technology.

scholarly journals 115 Performance of Various Apple Scion Cultivar/Rootstock Combinations and Postharvest Fruit Quality

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 408E-408
Author(s):  
Maria J. Sindoni V. ◽  
Frank B. Matta
Keyword(s):  
Fruit Quality ◽  
Fire Blight ◽  
Fruit Set ◽  
Fruit Size ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Fresh Fruit ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Solids Content

Several cultivar/rootstock combinations were evaluated for overall performance in Mississippi. This study included postharvest fruit quality during storage as influenced by the various rootstocks. Parameters measured were fruit set, scion and stock trunk cross-sectional area, fire blight tolerance, fruit drop, and maturity indices such as fruit size, firmness, fresh fruit weight, soluble solids content, and juice pH. Cultivar/rootstock combinations were `Earligold'/EMLA 7, `Jonagold'/EMLA 111, `Improved Golden'/EMLA 7, `Improved Golden'/EMLA 111, `Scarlet Gala' /EMLA 7, `Jonafree'/Mark, `Macspur'/M 7A, `Royal Gala'/MM 111, and `Williams Pride'/M 7A. Cultivar and rootstock influenced fruit set. `Royal Gala', `Scarlet Gala', `Improved Golden', and `Earligold' showed maximum fruit set among the various cultivars. MM 111 and EMLA 7 rootstocks increased fruit set. Scion cultivars had the greatest trunk diameter on EMLA 111 and MM 111 and the smallest diameter on Mark. Scion cultivars on Mark and M 7A rootstocks showed less susceptibility to fire blight compared to MM 111 and EMLA 111. Cultivars on EMLA 7 showed moderate susceptibility to fire blight. Cultivars `Jonafree', `Williams Pride', `Macspur', and `Scarlet Gala' were least susceptible to fire blight compared to `Royal Gala'. The remaining cultivars were intermediate in susceptibility to fire blight. Fruit size, firmness, fresh fruit weight, soluble solids content, and juice pH were influenced by cultivar. `Jonagold' and `Williams Pride' produced the largest fruit, while `Jonafree' and `Macspur' yielded the smallest fruit. Total soluble solids were not influenced by cultivar and rootstock combinations. Sugar content of the juice increased as the apples matured and ranged from 12% to 14% among the cultivar/rootstock combinations. Firmness was influenced by cultivar but not rootstock. `Jonafree', `Macspur' had firm fruit, while fruit of `Scarlet Gala', `Williams Pride', and `Earligold' was not as firm. After harvest, the cultivars were stored at 2 °C for ≈4 months under controlled conditions and evaluated for soluble solids content, titratable acidity, pH, and firmness at monthly intervals. Overall, firmness, soluble solids content, and titratable acidity in all cultivars decreased with time in storage. `Improved Golden'/EMLA 7, `Royal Gala'/MM 111, and `Jonagold'/EMLA 111 maintained quality during storage, compared with the remaining cultivars/rootstock combinations, and had a longer storage life.

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