scholarly journals Yield and quality performance of open pollinated and hybrid tomato cultivars grown under organic management in Puerto Rico.

1969 ◽  
Vol 97 (3-4) ◽  
pp. 149-170
Author(s):  
Kevin Brady ◽  
Bryan Brunner ◽  
José Pablo Morales-Payán ◽  
Sonia Martínez-Garrastazú
Keyword(s):  
Puerto Rico ◽  
Management System ◽  
Fruit Yield ◽  
Quality Performance ◽  
Organic Management ◽  
Variety Trials ◽  
Yield And Quality ◽  
Significant Yield ◽  
Tomato Cultivars ◽  
Marketable Fruit

Variety trials were conducted in 2010 and 2011 to evaluate the yield and quality performance of 11 open pollinated and three hybrid tomato (Solarium lycopersicum L.) cultivars grown organically in Lajas, Puerto Rico. In both years, significant differences in marketable fruit yield were observed. Yields in 2010 ranged from 72.1 Mg/ha for 'Roma' to 8.6 Mg/ha for 'Marion'. 'Roma' and 'Neptune' (65.6 Mg/ha) were among the highest yielding cultivars. In 2011, significant yield differences were also observed. Marketable fruit yield ranged from 54.7 Mg/ha for 'Early Girl' to 23.5 Mg/ha for 'Super Sioux'. 'Early Girl', 'Flora Dade' (53.8 Mg/ha), 'BHN 444' (50.8 Mg/ha), 'Roma' (48.6 Mg/ha), 'Eva Purple Ball' (48.4 Mg/ha), 'Traveler 76' (46.4 Mg/ha) and 'Celebrity' (45.9 Mg/ha) were among the highest yielders. 'Early Girl' was consistently among the top cultivars in both seasons for taste, yield, and fruit appearance. Open pollinated cultivars performed with more variability between the two seasons than the hybrids. The open pollinated cultivars which ranked highest during the two-year study for taste, yield, and overall appearance were 'Roma', 'Homestead 24', 'Ozark Pink', and 'Traveler 76'. This study indicates that tomato can be grown successfully under an organic management system in Puerto Rico using either open pollinated cultivars or hybrids.

scholarly journals Morphological, Leaf Nutrient, and Fruit Quality Characteristics of Diverse Tomato Cultivars under Organic Low-Input Management

2021 ◽  
Vol 13 (21) ◽  
pp. 12326
Author(s):  
Leangsrun Chea ◽  
Cut Erika ◽  
Marcel Naumann ◽  
Inga Smit ◽  
Bernd Horneburg ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Plant Morphology ◽  
Quality Characteristics ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Mineral Concentration ◽  
Tomato Production ◽  
Low Input ◽  
Yield And Quality ◽  
Tomato Cultivars

Increasing fruit yield and quality of tomatoes under organic low-input conditions remains a challenge for producers and breeders. Therefore, it is necessary to identify superior tomato cultivars that are suitable for production and use as parents in breeding programmes. In the present study, the variations in plant morphology and fruit quality characteristics of tomato cultivars were assessed to reveal the traits associated with improved yield and fruit quality. Sixty diverse tomato cultivars were screened in 2015, and in 2016, a subset of 20 cultivars was selected for further evaluation under organic low-input conditions. The results showed high variability among cultivars in all 28 traits that were observed. Salad cultivars had lower plant growth and fruit quality (minerals, dry matter, total soluble solids, and total phenolics) by 10–70%, but they displayed 10–60% higher fruit yield and leaf minerals than cocktail cultivars. Salad tomato cultivars with superior yield and harvest index were mainly derived from breeding for intensive indoor production. Cocktail cultivars with superior yield were mainly derived from organic and outdoor breeding programs. There was a trade-off between fruit yield and quality, indicating a challenge for simultaneous improvement of yield and quality. The importance of Mg was highlighted because of its contribution to the fruit mineral concentration and fruit quality. Cultivars superior in one trait or trait combination under organic low-input conditions were identified to be used by producers and breeders as superior cultivars to meet their production targets and breeding objectives. The importance of Mg provides a novel path for further research on improving soil-available Mg in organic tomato production to enhance fruit mineral concentration and fruit quality in general.

scholarly journals Bell Pepper Fruit Yield and Quality as Influenced by Solar Radiation-based Irrigation and Container Media in a Passively Ventilated Greenhouse

HortScience ◽  
2007 ◽  
Vol 42 (3) ◽  
pp. 642-652 ◽  
Author(s):  
Elio Jovicich ◽  
Daniel J. Cantliffe ◽  
Peter J. Stoffella ◽  
Dorota Z. Haman
Keyword(s):  
Solar Radiation ◽  
Nutrient Concentration ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Bell Pepper ◽  
Pine Bark ◽  
Yield And Quality ◽  
Quadratic Response ◽  
Marketable Fruit ◽  
Concentration Levels

Frequent fertigation of soilless-grown bell pepper (Capsicum annuum L.) can increase fruit production, but development of fruit disorders may offset the increase in yield of first-quality (blemish-free) fruit in greenhouses with minimal environmental control. Fruit yield and quality were studied as affected by water volumes and nutrient concentration levels, delivered with irrigation events initiated after determined cumulative solar radiation levels, in ‘HA3378’ bell pepper from October to May in north–central Florida. Irrigation events occurred after solar radiation integral levels (SRI; ±SD) 1.7 ± 0.42, 3.7 ± 0.42, 5.7 ± 0.42, 7.7 ± 0.42, and 9.7 ± 0.42 kW·min−1·m−2, which led to mean number of daily irrigation events of 61 ± 31, 26 ± 12, 17 ± 8, 12 ± 5, and 10 ± 4 respectively. In peat mix, perlite, and pine bark media, volume per irrigation event and concentration levels of the nutrient solution were, in the first experiment, 74 mL standard (74-s), and in a second concurrent experiment, 74 mL half-standard (74-½s) or 3) 37 mL standard (37-s). In both studies, combined marketable fruit yields of first quality and second quality (minor cracking patterns and yellow spots) increased linearly with decreasing SRI (increased events per day). First-quality fruit weight with 74-s was unaffected by media and, in a quadratic response to SRI, reached 5.4 kg·m−2 at 5.7 kW·min−1·m−2. First-quality weight with 74-½s and 37-s did not differ. Weight was unaffected by SRI in peat mix and perlite, and a quadratic response was recorded in pine bark, with yields of ≤3.6 kg·m−2. Fruit cracking incidence decreased with increased SRI, and was generally greater in pine bark. Incidence of yellow spots doubled with 74-½s compared with 37-s, and decreased linearly with increased SRI; the disorder was minor with 74-s. Compared with 37-s, 74-½s decreased fruit with blossom-end rot by 14%, increased marketable fruit weight by 10% in media with the lowest water-holding capacity (perlite, pine bark), and increased nutrient use efficiency. With any media used, the SRI set point of 5.7 kW·min−1·m−2 (daily mean of 17 irrigation events) and 74 mL, at standard nutrient concentration levels, appeared to produce greater blemish-free fruit yield than delivering 37 mL/event or half-concentrated 74 mL/event within the range of SRI means of 1.7 to 9.7 kW·min−1·m−2 (61–10 irrigation events/day). Disorder-tolerant pepper cultivars, better temperature control, and August plantings are additional suggestions for irrigation management to increase first-quality fruit yield.

scholarly journals Variability Parameters of Yield and Quality Attributes in Bitter Gourd (Momordica charantia L.)

2021 ◽  
pp. 172-177
Author(s):  
Som Prakash ◽  
R. S. Verma ◽  
R. B. Ram ◽  
Bhag Chand Shivran ◽  
Harvindra Pal
Keyword(s):  
Coefficient Of Variation ◽  
Research Work ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Total Soluble Solids ◽  
Yield And Quality ◽  
Marketable Fruit ◽  
Number Of Branches

The experiment of the present research work was conducted during summer season of 2018-19 and 2019-20 at Horticulture Research Farm-I, Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya-Vihar, Rae Bareli Road, Lucknow (U.P.), India. The analysis of variance clearly reveals significant differences among the genotypes for all characters. The observations recorded on various characters showed that the estimates of phenotypic coefficient of variation (PCV) were higher than genotypic coefficient variation (GCV) for all characters. The high phenotypic as well as genotypic coefficient of variation were observed in marketable fruit yield per plant (39.36%) followed by average fruit weight (29.73%) and number of branches per plant (27.18%). High estimates of heritability were recorded for different characters viz., average fruit weight (98.6%) followed by total soluble solids (97.8%), total sugars (97.7%) and days to anthesis of first pistillate flowers (97.2%). The parameters which observed were found to be very high estimate value of genetic advance in per cent of mean of (60.14%) average fruit weight (60.14%) followed by titratable acidity (53.73%), number of branches per plant (53.47%), total soluble solids (52.81%) and marketable fruit yield per plant (47.87%).

scholarly journals Use of Commercially Available Pollenizers for Optimizing Triploid Watermelon Production

HortScience ◽  
2010 ◽  
Vol 45 (4) ◽  
pp. 541-545 ◽  
Author(s):  
Peter J. Dittmar ◽  
David W. Monks ◽  
Jonathan R. Schultheis
Keyword(s):  
Citrullus Lanatus ◽  
Hollow Heart ◽  
Fruit Yield ◽  
The Other ◽  
Yield And Quality ◽  
Triploid Watermelon ◽  
Marketable Fruit ◽  
The Hill ◽  
Pollen Movement ◽  
Selection Of

An experiment was conducted during 2005 and 2006 in Kinston, NC, with the objective of maximizing triploid watermelon [Citrullus lanatus (Thunb.) Matsum. and Nak.] fruit yield and quality by optimizing the choice and use of pollenizers. Treatments were pollenizer cultivars planted singly [‘Companion’, ‘Super Pollenizer 1’ (‘SP1’), ‘Summer Flavor 800’ (‘SF800’), and ‘Mickylee’] or in pairs (‘Companion’ + ‘SP1’, ‘Companion’ + ‘SF800’, and ‘SP1’ + ‘SF800’). All pollenizers from these seven treatments were interplanted with the triploid cultivar Tri-X-313. Planting arrangement was compared by establishing ‘SF800’ in a hill versus an interplanted field arrangement. Effect of pollenizer establishment timing on triploid fruit yields and quality was evaluated by establishing ‘SP1’ 3 weeks after planting and comparing it with the establishment of ‘SP1’ at the time of triploid plant establishment. Finally, a triploid planting with no pollenizer (control) was included to determine pollen movement. Fruit yield from the control was 22% or less of yield of the other treatments containing a pollenizer and less than 10% in the initial or early harvests. Pollen movement was minimal among plots and differences in yield and fruit quality could be attributed to pollenizer treatment. In 2005, the use of ‘Companion’, ‘SP1’, or ‘Mickylee’ as pollenizers produced similar total yields, whereas ‘SF800’ produced the lowest yield. In 2005, ‘Companion’ produced more large fruit than the other individual pollenizer treatments. Combining the pollenizers generally did not enhance triploid yields or quality. Interplanting of pollenizers consistently resulted in greater yield compared with the hill system. Late planting of ‘SP1’ increased the incidence of hollow heart in the marketable fruit and decreased yield compared with simultaneously planting ‘SP1’ and triploid plants. Thus, selection of pollenizer, planting arrangement, and time of pollenizer establishment are all important considerations to optimizing triploid yield and quality.

Sequential foliar application of vermicompost leachates improves marketable fruit yield and quality of strawberry (Fragaria×ananassa Duch.)

2010 ◽  
Vol 124 (1) ◽  
pp. 34-39 ◽  
Author(s):  
Rajbir Singh ◽  
R.K. Gupta ◽  
R.T. Patil ◽  
R.R. Sharma ◽  
R. Asrey ◽  
...  
Keyword(s):  
Foliar Application ◽  
Fruit Yield ◽  
Fragaria Ananassa ◽  
Yield And Quality ◽  
Marketable Fruit

scholarly journals Yield performance of eight snap bean genotypes grown under an organic management system in the tropics

2014 ◽  
Vol 98 (1) ◽  
Author(s):  
Bryan Brunner ◽  
Kevin Brady ◽  
Luisa Flores ◽  
James S. Beaver
Keyword(s):  
Puerto Rico ◽  
Management System ◽  
Phaseolus Vulgaris L ◽  
Yield Performance ◽  
Organic Management ◽  
Snap Bean ◽  
Breeding Lines ◽  
Snap Beans ◽  
Commercial Cultivars ◽  
The Tropics

Eight snap bean (Phaseolus vulgaris L.) cultivars and lines were grown under an organic management system in 2011 and 2012 in Lajas, Puerto Rico. Bean genotypes used in the trial were the commercial cultivars 'Contender', 'Festina', 'Fresh Pick', 'Jade', 'Nash' and 'Provider', and two experimental breeding lines PR1018-1 and PR1018-5. In 2011, 'Provider' and PR1018-5had the highest yields, with 11.2 and 11.1 t/ha, respectively, but these were not significantly different from the yields of 'Contender', 'Festina', PR1018-1 or 'Nash'. 'Jade' had the lowest yield, with 6.5 t/ha. In 2012, the highest yielding cultivar was 'Festina', with 14.6 t/ha, which was not significantly different from 'Nash' (13.8 t/ha), PR1018-5 (12.6 t/ha) or 'Jade' (12.5 t/ha). 'Contender' (9 t/ha), 'Provider' (8.4 t/ha) and 'Fresh Pick' (8.4 t/ha) had the lowest yields. This study has shown that snap beans can be successfully grown in Puerto Rico under an organic management system, with yields similar or superior to conventionally produced snap beans.

scholarly journals Produtividade de tomate orgânico cultivado em diferentes ambientes e níveis de insumos

2016 ◽  
Vol 11 (4) ◽  
pp. 44
Author(s):  
Gisley Karoline Emerick Bitancourt Alves ◽  
Antônio Carlos Simões ◽  
Regina Lúcia Félix Ferreira ◽  
Sebastião Elviro Araújo Neto
Keyword(s):  
Block Design ◽  
Fruit Yield ◽  
Marketable Yield ◽  
Low Level ◽  
Ecological Farming ◽  
Field Environment ◽  
Randomized Complete Block Design ◽  
Tomato Cultivars ◽  
Marketable Fruit ◽  
Fruit Mass

A importância alimentar do tomate orgânico aliado a sua baixa produção na Amazônia e a necessidade de baixo uso de insumos para seu cultivo ecológico o objetivo deste trabalho foi avaliar a produtividade de cultivares de tomate orgânico cultivado em campo e ambiente protegido com alto e baixo nível de insumos. Os experimentos foram conduzidos em ambiente protegido e campo, ambos no delineamento em blocos casualizados completos, em esquema de parcelas subdivididas 2 x 3, sendo a parcela principal composta por dois níveis de insumos e a subparcela pelas cultivares copa (Santa Kruz Kada, IPA 6 e Santa Clara), com cinco repetições de cinco plantas cada. As variáveis avaliadas foram: massa média de frutos total e comercial (g fruto-1), número de frutos total e comercial por planta, produtividade total e comercial de frutos (kg ha-1). A cultivar IPA 6 em cultivo protegido exigiu maior uso de insumos para aumentar a massa média de fruto total e comercial, produtividade total e comercial, em campo pode se utilizar baixo nível de insumo. O alto uso de insumos é necessário para aumentar a produtividade total e comercial para a cv. Santa Clara em cultivo à campo, ambiente que também necessita de alto uso de insumos para aumentar a massa média de fruto total e comercial a produtividade comercial da cultivar Santa Kruz. Productivity of organic tomato grown in different environments and levels of inputsAbstract: The importance of organic tomato feed associated with their low production in the Amazon and the need for low input to its ecological farming the objective of this study was to evaluate the productivity of organic tomato cultivars grown in field and greenhouse with high and low level inputs. The experiments were conducted under greenhouse and field conditions, both in randomized complete block design comprising plots subdivided into subplots. The plots encompassed of two levels of inputs, while the subplots contained the (Santa Kruz Kada, 6 and IPA Santa Clara), with five replicates of five plants each. The variables evaluated were: total fruit mass and marketable fruit mass (g fruit-1), number of total and marketable fruit per plant, total and marketable fruit yield (kg ha-1). The cultivar IPA 6 in greenhouse demanded greater use of inputs to increase the total and marketable fruit mass, total and marketable yield in field can be used for low level input. The high use of inputs is necessary to increase the total and marketable yield for cv. Santa Clara in the growing field, environment which also requires high use of inputs to increase the total and marketable fruit mass, marketable fruit yield of cultivar Santa Kruz.

scholarly journals Effect of Plant density and Fertilizer Application Rates on Growth, Fruit Yield and Quality of Tomato (Solanum lycopersicum L.) in Greenhouse Condition

2021 ◽  
pp. 22-31
Author(s):  
Mai Hai Chau ◽  
Ngo Xuan Chinh
Keyword(s):  
Solanum Lycopersicum ◽  
Plant Density ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Fertilizer Rate ◽  
Tomato Cultivar ◽  
Solanum Lycopersicum L ◽  
Yield And Quality ◽  
Fruit Setting ◽  
Marketable Fruit

Plant density and fertilization are key practices for improving the fruit quality and yield of vegetables grown in greenhouses. The experiment was performed to investigate the effects of density and fertilization on the fruit yield and quality, economic efficiency of Solanum lycopersicum L. at Duc Trong district of Lam Dong province. The density (50,000; 33,000; 25.000 plants ha-1) and the fertilizer rates (240N – 100P2O5 – 275K2O; 300N – 125P2O5 – 344K2O; 360N – 150P2O5 – 413K2O kg and 420N – 175P2O5 – 482K2O kg ha-1) were studied in a completely randomised split plot design with three blocks. The fertilizer rate (420N – 175P2O5 – 482K2O kg ha-1) was produced the highest height (562.39 cm), fruit setting rate (69.87%), number of fruit per plant (95.65 fruits), average fruit weight (106.37 g), fruit yield (441.11 tons ha-1) and marketable fruit yield (204.31 tons ha-1). The density (25,000 plants ha-1) gave the highest fruit setting rate (75.35%), number of fruit per plant (94.84 fruits), average fruit weight (113.24 g), individual fruit yield (10.02 kg per plant) and fruit yield (501.17 tons ha-1). The combination of density (25,000 plants ha-1) and fertilizer rate (420N – 175P2O5 – 482K2O kg ha-1) have the highest fruit yield (613.5 tons ha-1), marketable fruit yield (223.91 tons ha-1) and rate of return (2.44). In addition, this combination was the best density and fertilizer level management strategy for greenhouse-grown Lahay 334 tomato cultivar in Lam Dong province, Vietnam.

scholarly journals Spacing, Nitrogen and Potassium on Yield and Quality of Cabezona Pineapple

1969 ◽  
Vol 67 (1) ◽  
pp. 1-10
Author(s):  
Carmen T. Ramírez ◽  
Enrique González Tejera
Keyword(s):  
Puerto Rico ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Fresh Market ◽  
Mean Values ◽  
Yield And Quality ◽  
The Mean ◽  
X 132

This study evaluates the effects of spacing, and of N and K2O on Cabezona pineapple, a big fruit planted solely for the fresh market and grown in an Inceptisol at Lajas, Puerto Rico. Treatment differentials consisted of 3 spacings (30.5, 46 and 61 cm) between plants within the row, 61 cm between rows and 132 em between double rows. Significant fruit yield increases occurred with treatment differentials. Up to 88.4 t/ha were obtained from plants spaced 30.5 cm and receiving 224 and 252 kg/ha of N and K2O, respectively. Fruit weight increased as spacing increased. The mean values were 2.9, 3.4 and 3.9 kg for the 30.5, 46 and 61 cm spacings, respectively. The greater number (19,442 fruits/ha) of the largest marketable fresh fruits (about 3.6 kg each) were obtained from plots spaced 46 x 61 x 132 cm, with 336 kg N and 168 kg K2O/ha. Close planting significantly reduced the number of slips per plant, values ranging from 2.7 to 8.7.

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