scholarly journals (207) Productivity and Fruit Quality in European Cucumber under Greenhouse Conditions in Northwest Mexico

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1055E-1056
Author(s):  
Raul Leonel Grijalva-Contreras ◽  
Rubén Macias-Duarte ◽  
Fabián Robles-Contreras ◽  
Manuel de Jesus Valenzuela-Ruiz
Keyword(s):  
Fruit Quality ◽  
Natural Ventilation ◽  
Plant Density ◽  
Insect Pest ◽  
Sowing Date ◽  
High Yield ◽  
Greenhouse Production ◽  
Northwest Mexico ◽  
Yield And Quality ◽  
Important Disease

Mexican production of vegetables under greenhouse conditions has been increased notably during the last year to about 1500 ha. The main crop in greenhouse production is tomato, but european cucumber is a potential crop due to high yield and quality, with a good price in the marketplace and a short growing season. The objective of this trial was to evaluate eight european cucumber varieties and to choose those with high yield and fruit quality, and disease resistance. The experiment was carried out at the experimental station (INIFAP-CIRNO). Greenhouse conditions were: polyethylene (8.0 mL), without temperature control; natural ventilation; and soil with electrical conductivity of 1.22 dS·m-1 and pH 7.96. Sowing date for seed was 15 Oct. 2004. Plant density was 3.78 plants per m2. The harvest period was 26 Dec. 2004 to 11 Mar. 2005, with an average of 10 cuttings. Varieties with highest yield were `Imanaol', `Bermejo', `Dominica', and `Kalunga', with 18.9, 15.2, 14.8, and 14.3 kg·m2, respectively. Fruit quality was excellent in all varieties; however, `Imanaol' had the highest percentage of size and fruit number. The main insect pest during the year was white fly (Bemissiasp.) and the most important disease was powdery mildew (Erishipecichoracearum).

scholarly journals Influence of Plant Density on Yield and Quality in Tomatoes Under Greenhouse Conditions in the Northwest on Mexico

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 801E-801
Author(s):  
Raul Leonel Grijalva-Contreras* ◽  
Ruben Macias-Duarte ◽  
Manuel de Jesus Valenzuela-Ruiz ◽  
Fabian Robles-Contreras
Keyword(s):  
Plant Density ◽  
Insect Pest ◽  
Fruit Size ◽  
Fruit Color ◽  
High Yield ◽  
Soil Medium ◽  
Experimental Station ◽  
Yield And Quality ◽  
Plant Densities ◽  
Effect On Yield

Production of high value crops in greenhouse in the Northwest of Mexico is an efficient way to achieve high yield, and high quality and the some time vegetables with less pesticide residue. The objective of this experiment was to evaluate the effects of three different plant densities (1.89, 2.50, and 3.78 plants/m2) on yield and fruit quality on tomatoes. This experiment was carried out in the Experimental Station (INIFAP-CIRNO) inside polyethylene greenhouse. In this Trial we used soil medium and the variety used was `Matrix'. The date seedling establishment was on 26 Jan. 2003. Plant density did have an effect on yield, but did not affect the fruit size. Yield per square meter had a linear response a plant density. The yield obtained were 21.8, 16.1 and 14.7 kg/m2 using 3.78, 2.50 and 1.89 plants/m2, respectively. Weight fruit varied from 200.4 to 247.6 g/fruit for all densities. Also the density not affected the fruit color. None of the treatments evaluated had problems of insect pest and disease.

scholarly journals Productivity and Fruit Quality in Tomatoes Varieties Under Greenhouse Conditions in the Northwest of Mexico

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 804A-804
Author(s):  
Raul Leonel Grijalva-Contreras* ◽  
Ruben Macias-Duarte ◽  
Manuel de Jesus Valenzuela-Ruiz ◽  
Fabian Robles-Contreras
Keyword(s):  
Fruit Quality ◽  
Plant Density ◽  
Insect Pests ◽  
Fruit Weight ◽  
Leaf Miner ◽  
High Yield ◽  
Soil Medium ◽  
Experimental Station ◽  
Army Worm ◽  
Important Disease

The production of vegetables in Mexico under greenhouse conditions has been increased notably during the last years. Actually the area is about 1,250 ha. Tomatoes is the vegetables more important with 70%. The objective of this experiment was to evaluate ten beef tomatoes varieties growing on soil medium and to choice those with high yield, fruit quality and disease resistant. The experiment was carried out on the Experimental Station (INIFAP-CIRNO) inside Polyethylene greenhouse. The soil characteristics are clay loam texture, electrical conductivity (1.22 ds·m-1 and Ph 7.96). The date seedling establishment on 25 Oct. 2003 (28 days after sow seed). The plant density used was of 3.78 plants per square meter. The harvest period occurred from 20 feb. Feb. 20 to 27 May and they were carried out an average of sixteen cutting. There were nonsignificant differences in yield and weight fruit among varieties. Yield varied from 26.2 and 19.2 kg·m-2. The varieties with more yield were Clarion, GC-29125, Attention, Thomas and Charleston with 26.2, 24.7, 24.4, 24.2 and 21.5 kg·m-2, respectively. Fruit weight varied from 96.5 to 174.0 grams per fruit. The important insect pests in this year were Leaf Miner (Lyriomyza sp.); Army worm (Heliothis op.) and white fly (Bemissia sp.) however, we have not recorded any important disease during this trial.

scholarly journals (28) Productivity and Fruit Quality of Bell Pepper under Greenhouse Conditions in Northwest Mexico

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1075C-1075
Author(s):  
Raul Leonel Grijalva-Contreras ◽  
Rubén Macias-Duarte ◽  
Fabián Robles-Contreras ◽  
Manuel de Jesus Valenzuela-Ruiz
Keyword(s):  
Natural Ventilation ◽  
Plant Density ◽  
Insect Pests ◽  
Soil Condition ◽  
Fruit Weight ◽  
Bell Pepper ◽  
High Yield ◽  
Northwest Mexico ◽  
Bell Peppers ◽  
Production Area

Vegetables are important in Mexican agriculture, and production under greenhouse conditions has been increased notably during the past year. The production area is about 3500 ha. The main crop grown in greenhouses is tomatoes, but bell pepper is a potential crop due to high yield and that good quality commands a good price during the winter. The objetive of this research was to evaluate nine bell peppers with high technology for horticultural production in the greenhouse. The experiment was carried out at the Experimental Station (INIFAP-CIRNO). The greenhouse conditions are: polyethylene (8 mL), without temperature control, natural ventilation, and soil condition (electrical conductivity of 1.22 dS·m-1and pH 7.96). The planting date was on 26 Oct. 2004. Plant density used was 3.78 plants/m2. The harvest period ocurred from 3 Mar. to 11 May 2005. In this period, we made six cuttings. There were no differences in the yield among varieties. The varieties with the higher yield were Laroles, Asaia, Far-114 and Cupid, with 65.6, 63.1, 63.1, and 57.4 t·ha-1, respectively. Cadia and Parker had the lowest yield, with 78.5 and 90.0 t·ha-1, respectively. The fruit weight was good in all varieties, however, Far-114 and Asaia had higher fruit weight with 272.5 and 269.5 g, respectively. The main insect pests during this experiment were white fly (Bemissia sp.) and leafminer (Lyriomyza sp.). There were no disease problems during this trial.

Plant Density and Sowing Date Effects on Sugarbeet Yield and Quality

2004 ◽  
Vol 3 (3) ◽  
pp. 215-218 ◽  
Author(s):  
Tahsin Sogut ◽  
Halis Arioglu
Keyword(s):  
Plant Density ◽  
Sowing Date ◽  
Yield And Quality

scholarly journals (192) Commercial Evaluation of Green Snap Bean Varieties in Northwest Mexico

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1031E-1032
Author(s):  
Raul Leonel Grijalva-Contreras ◽  
Rubén Macias-Duarte ◽  
Fabián Robles-Contreras ◽  
Manuel de Jesus Valenzuela-Ruiz
Keyword(s):  
Irrigation System ◽  
Sowing Date ◽  
Good Alternative ◽  
High Yield ◽  
Market Prices ◽  
Snap Bean ◽  
Snap Beans ◽  
Northwest Mexico ◽  
Pod Quality ◽  
Dark Green

Production of green snap beans is a good alternative for Caborca, Sonora, Mexico. This vegetable can be harvested during the last week of November when market prices are good, and has good adaptation, and high yield and pod quality. The objective of this experiment was to evaluate 11 green snap bean varieties. This experiment was carried out on a commercial field, where seed was sown on 25 Aug. 2003. Density was 20 seeds/m (60 kg·ha-1). In this trial, we used a drip-irrigation system on beds 2 m apart and two rows with 36 cm of separation per bed. The first harvest was 68 days after the sowing date and lasted for 20 days, with four cuttings during that time. The varieties with greater yield were `Castaño', `Festina', and `Landmark' with 541, 494, and 463 boxes/ha (>30 pounds/box), respectively. The varieties with low yield were `Espada' and `Leader' with only 52 and 75 boxes/ha, respectively. The control `Savannah' yielded 235 boxes/ha. The pod quality distribution was 20%, 35%, and 45% for first, second, and third classification, respectively. `Savannah' and `Festina' had the best pod color (dark green). None of the varieties evaluated had pest or disease problems.

scholarly journals Soilless Media and Containers for Greenhouse Production of `Galia' Type Muskmelon

HortScience ◽  
2006 ◽  
Vol 41 (5) ◽  
pp. 1200-1205 ◽  
Author(s):  
J.C. Rodriguez ◽  
D.J. Cantliffe ◽  
N.L. Shaw ◽  
Z. Karchi
Keyword(s):  
Fruit Quality ◽  
Fruit Yield ◽  
Pine Bark ◽  
Soluble Solids ◽  
Greenhouse Production ◽  
Yield And Quality ◽  
Feasible Option ◽  
Polyethylene Bags ◽  
Reducing Costs ◽  
Solids Content

In the spring of 2001 and 2002, different combinations of media (coarse perlite, medium perlite, and pine bark) and containers (polyethylene bags and plastic pots) were used for hydroponic production of `Galia' muskmelons (Cucumis melo L.) to determine their effect on fruit yield and quality, and their influence on costs of production. Marketable yields obtained for `Gal-152' in the spring 2001 and 2002 were 25.5 kg·m–2 and 39.0 kg·m–2 respectively. When data were combined for 2001 and 2002, fruit yield and fruit quality were unaffected by any combination of media and container. Average soluble solids content was generally greater than 10° Brix. It was determined that the use of pine bark media and plastic pots instead of perlite and bags would save $18,200 per year (two crops)—a feasible option for reducing costs of producing `Galia' muskmelons in greenhouses using soilless culture without loss of yield and fruit quality.

IRRIGATION, SPACING AND NITROGEN EFFECTS ON YIELD AND QUALITY OF PICKLING CUCUMBERS GROWN FOR MECHANICAL HARVESTING

1980 ◽  
Vol 60 (3) ◽  
pp. 923-928 ◽  
Author(s):  
JOHN O’SULLIVAN
Keyword(s):  
Fruit Quality ◽  
Plant Density ◽  
Plant Population ◽  
Limiting Factor ◽  
Plant Populations ◽  
Yield And Quality ◽  
High Plant Density ◽  
Pickling Cucumbers ◽  
Effect On Yield

The effects of plant spacing and irrigation at two rates of N in 1977 and 1978 and one rate of N in 1979 on yield and quality of pickling cucumbers (Cucumis sativus L.) harvested once-over was investigated. Plant populations significantly affected yield, with highest yields produced at the highest population of 64 plants/m2 each year. Irrigation and N rate had no significant effect on yield. Lack of soil moisture was not a limiting factor on yield during the critical growth stage of early fruit set in any year. Plant population also significantly affected fruit quality. In general, fruit quality decreased as plant population increased. Irrigation affected fruit quality only in 1977 while N rate affected quality in 1977 and 1978. Fruit color was affected by irrigation and N, but not by plant populations. Planting arrangement had no significant effect on yield or quality. Tissue N decreased with increasing population and irrigation in 1977 and indicated an increased demand for N when cucumbers are produced with irrigation at high plant density.

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 Yield and quality of tomato grown in a hydroponic system, with different planting densities and number of bunches per plant

2018 ◽  
Vol 48 (4) ◽  
pp. 340-349 ◽  
Author(s):  
Flávio Barcellos Cardoso ◽  
Herminia Emilia Prieto Martinez ◽  
Derly José Henriques da Silva ◽  
Carla do Carmo Milagres ◽  
José Geraldo Barbosa
Keyword(s):  
Fruit Quality ◽  
Plant Density ◽  
Irrigation System ◽  
Block Design ◽  
Total Yield ◽  
Fresh Mass ◽  
Planting Density ◽  
High Yield ◽  
Hydroponic System

ABSTRACT Obtaining a high yield of good quality fruits is one of the main challenges of the tomato crop. The enhancement in plant density promotes a reduction in the fruit fresh mass and an increase the yield per area. On the other hand, commercialization parameters take into account number and fresh mass of fruits. This study aimed at evaluating the yield and fruit quality of indeterminate growth hybrid tomato (Rebeca), cultivated in a hydroponic system, with different planting densities and number of bunches per plant. The experiment was conducted under greenhouse conditions, in a sub-irrigation system containing expanded clay as substrate. A split-plot randomized block design, with three replications, was used. In the plots, four planting densities (11.1 plants m-2, 8.3 plants m-2, 6.6 plants m-2 and 5.5 plants m-2) were allocated and, in the subplots, the number of bunches per plant (one or two). The total yield was influenced by the interaction planting density x number of bunches per plant. The treatment that allowed the highest yield was 11.1 plants m-2 with two bunches, with 22.61 kg m-2 or 226.1 t ha-1, in a crop cycle of 134 days. The observed variations for the nutrient contents of leaves and fruits of tomato plants with one or two bunches, at densities of 5.5-11.1 plants m-2, do not compromise the fruit quality nor influence the production of tradable fruits, using the hydroponic system.

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