scholarly journals Yield and Quality of Spinach Cultivars for Greenhouse Production in Oklahoma

2007 ◽  
Vol 17 (2) ◽  
pp. 269-272 ◽  
Author(s):  
Lynn Brandenberger ◽  
Todd Cavins ◽  
Mark Payton ◽  
Lynda Wells ◽  
Tina Johnson
Keyword(s):  
Spinacia Oleracea ◽  
Quality Factors ◽  
Leaf Color ◽  
Greenhouse Production ◽  
Yield And Quality ◽  
Quality Ratings ◽  
Production Techniques ◽  
Production Cycles ◽  
Time Required

Greenhouse spinach production is an alternative to fruiting vegetables produced in the greenhouse because it allows for multiple short-duration production cycles and a much faster economic return. Ten spinach (Spinacia oleracea) cultivars were evaluated for yield and quality using greenhouse float bed production techniques in Fall 2005 and Spring 2006. Time required for production was 52 days in Fall 2005 and 37 days in Spring 2006. Highest yields in Fall 2005 were 2093, 1996, 1956, 1920, and 1884 g·m−2 for ‘Olympia’, ‘Samish’, ‘Padre’, ‘Bolero’, and ‘F91-415’, respectively. ‘F91-415’ and ‘Bolero’ were the highest yielding cultivars in Spring 2006 with yields of 1649 and 1560 g·m−2, respectively. Bolting ratings were recorded in both tests and only ‘Samish’ had any bolting in Spring 2006 and none in Fall 2005. Quality ratings for leaf color and foliage mass were recorded in Spring 2006 with ‘Samish’, ‘Padre’, and ‘Cypress’ having the highest quality ratings. Color factors, including lightness, hue, and vividness, varied in Fall 2005 but not in Spring 2006. Based on yield and quality factors, the authors recommend further commercial trials of ‘Olympia’, ‘Samish’, ‘Padre’, and ‘F91-415’ for fall greenhouse production and ‘F91-415’ and ‘Padre’ for spring production.

An evaluation of websites quality factors in agro travel and ecotourism

2010 ◽  
Vol 16 (1) ◽  
pp. 11-30
Author(s):  
Petros Lathiras ◽  
Anastasia Zopidou ◽  
John Mylonakis ◽  
Panayiotis Tahinakis ◽  
Nikolaos Protogeros ◽  
...  
Keyword(s):  
Service Industry ◽  
Quality Factors ◽  
Electronic Trade ◽  
Internet Users ◽  
Quality Ratings ◽  
Information Interaction ◽  
Medium Quality ◽  
Weak Points ◽  
Personal Accounts

Tourism is an information intensive industry and as a service industry, information is the most significant quality factor for the industry. E-tourism is part of electronic trade that includes the fastest developing technologies that assist to the hospitality and tourism strategic planning and management. The aim of this paper is to analyze and compare the quality of 3 Internet sites and detecting their strong and weak points by analyzing quality into its constituent dimensions. Research was carried out by personal interviews and via electronic mails to a sample of 413 persons and internet users, out of which 157 responded. Statistical analysis included simple and multiple comparisons ANOVA and t-tests. Research detected some medium quality ratings, as well as, some more positive evaluations of certain individual factors. The Internet sites that collected the highest ratings are Agrotravel (5.32), Guest inn (5.08) and Ecotourism (4.26). Elements considered important in all three web portals are the lack of interaction facilities and conversation sections and personalized options with user personal accounts. Emphasis must be paid on the design, information, interaction and overall quality of a web site.

scholarly journals Rootstock on production and quality of ‘Niagara Rosada’ grapevine

2018 ◽  
Vol 40 (4) ◽  
Author(s):  
Jéssika Angelotti-Mendonça ◽  
Mara Fernandes Moura ◽  
João Alexio Scarpare Filho ◽  
Bruna Thaís Ferracioli Vedoato ◽  
Marco Antonio Tecchio
Keyword(s):  
Environmental Conditions ◽  
Sao Paulo ◽  
Fruit Yield ◽  
São Paulo ◽  
Paulo State ◽  
Yield And Quality ◽  
Production Cycles ◽  
São Paulo State ◽  
Niagara Rosada

Abtract In Brazil, the producers have changed used rootstocks to get more vigor to scion. Rootstocks change the distribution of bud fruitfulness over grapevine shoots and the expression of the bud fruitfulness into fruit yield. Hence, these modification could alter ideal pruning length. In this way, it was evaluated bud fruitfulness, fruit yield and quality of ‘Niagara Rosada’ grapevine grafted onto rootstocks: ‘IAC 766’, ‘IAC 572’, ‘IAC 313’, ‘IAC 571-6’, and ‘Riparia do Traviu’, which ‘IAC 766’ is the most used rootstock in São Paulo State, nowadays. The evaluations were performed over three crop seasons, in a vineyard located in Louveira, SP. Two evaluations were performed in Brazilian traditional season, and one crop pruning was performed in Brazilian summer, called “off-season”. In traditional seasons, the bud fruitfulness was evaluated from the first to fourth bud in 2014 and to the fifth in 2015. In the off-season, bud fruitfulness was evaluated from the fifth to eighth bud. Fruit yield and quality were also evaluated over the three production cycles. Bud fruitfulness of ‘Niagara Rosada’ grafted onto the evaluated rootstocks showed that this characteristic was more affected by the environmental conditions, confirmed due to alteration of bud fruitfulness through production cycles. Additionally, no effect of rootstock was observed on fruit yield, and quality of ‘Niagara Rosada’. Only isolated variations were detected, and these are not enough to confirm the influence of rootstocks on scion of ‘Niagara Rosada’. Although no effect of rootstocks on bud fruitfulness, fruit yield and quality has been observed in the evaluated conditions, all rootstocks are recommended to be used in combination with ‘Niagara Rosada’.

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.

PENGARUH LAMA PENYULINGAN DAN KOMPOSISI BAHAN BAKU TERHADAP RENDEMEN DAN MUTU MINYAK ATSIRI DARI DAUN DAN BATANG NILAM (Pogostemon cablin Benth)

2012 ◽  
Vol 4 (2) ◽  
pp. 16
Author(s):  
A Sulaiman
Keyword(s):  
Essential Oil ◽  
Raw Materials ◽  
Raw Material ◽  
Composition Effect ◽  
High Quality ◽  
Yield And Quality ◽  
Pogostemon Cablin ◽  
Time Required ◽  
Better Than

The research of Distillation And Raw Material Composition Effect of Yield And Quality EssentialOil of Leaves And Stem Patchouli (Pogostemon cablin Benth). This study aimed to examine the influence of the length of distillation and composition of raw materials to the yield and quality of essential oil of patchouli leaves and stems to produce essential oils that have a high quality and yield. The time required to obtain the highest yield of patchouli oil is 8 hours, by composition of 100% leaf (1:0), that is equal to 3.631%, while the lowest yield of patchouli oil are produced from 100% stem (1:0) by distillation of 4 hours, in the amount of 0.10%. Composition that produces patchouli oil with the best quality is 100% stems (0:1) but that yield is lower, while the quality of patchouli oil produced by 100% leaf (1:0) and a mixture of leaf-stem (1:1) quality is still lower than the patchouli oil from the stem, but its yield is better than the yield of oil patchouli by 100% composition of the stem (0:1).Keywords:  essential oil, pogostemon cablin benth, yield

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 Yield and Quality of Spinach Cultivars for Spring Production in Oklahoma

2004 ◽  
Vol 14 (4) ◽  
pp. 602-605
Author(s):  
Lynn Brandenberger ◽  
Lynda K. Wells ◽  
Michel M. Haigh
Keyword(s):  
Spinacia Oleracea ◽  
Quality Characteristics ◽  
Southern Plains ◽  
Green Color ◽  
Yield And Quality

Nine (2001) and eight (2002) spinach (Spinacia oleracea) cultivars, including hybrid and open pollinated types, were tested for yield and quality characteristics during two spring production seasons in Oklahoma. Cultivars were evaluated for emergence, vigor, color, bolting resistance, and yield. Cultivars did not vary significantly for yield, which ranged from 11.9 to 14.9 tons/acre. `Baker', `Bolero', `Catalina', `Olympia', and `Padre' had significantly higher levels of bolting resistance than other cultivars in the trials. 'Catalina', `Olympia', and `Padre' also exhibited the darkest green color of those cultivars with bolting resistance. Based upon bolting resistance, `Catalina', `Olympia', `Padre', `Baker', and `Bolero' are five cultivars that can be recommended for use in spring planted spinach in Oklahoma and the southern plains.

FORAGE YIELD AND QUALITY OF ALFALFA FOLLOWING LATE FALL APPLICATIONS OF 2,4-D OR 2,4-DB

1976 ◽  
Vol 56 (4) ◽  
pp. 929-934 ◽  
Author(s):  
J. WADDINGTON ◽  
J. GEBHARDT ◽  
D. A. PULKINEN
Keyword(s):  
Crude Protein ◽  
Butyl Ester ◽  
Forage Yield ◽  
Quality Factors ◽  
Crude Fibre ◽  
Yield And Quality ◽  
Late Fall ◽  
Crepis Tectorum ◽  
Dichlorophenoxy Acetic Acid

Dormant alfalfa (Medicago media Pers. cv. Vernal) was sprayed with 2,4-D [(2,4-dichlorophenoxy) acetic acid] (as amine) and 2,4-DB [4-(2,4-dichlorophenoxy) butyric acid] (as butyl ester) in late fall of 1972 and 1973. Alfalfa was damaged less, and narrow-leaved hawks-beard (Crepis tectorum L.) was controlled better by 2,4-DB than by 2,4-D. Herbicide applications had small effects on the quality factors crude protein, crude fibre, carotene, and xanthophylls, and in no case improved them significantly. Differences which were significant and similarities in effect between comparable herbicide rates in the two experiments indicate that losses in forage yield or quality or both are likely to occur when 2,4-D or 2,4-DB is applied to dormant alfalfa.

scholarly journals Influence of Nutrient Concentration on Growth, Yield And Quality of Spinach (Spinacia oleracea L.) in Hydroponic System

2021 ◽  
pp. 36-42
Author(s):  
Baiamonlangki Sutnga ◽  
Vijay Bahadur ◽  
Anita Kerketta
Keyword(s):  
Nutrient Concentration ◽  
Spinacia Oleracea ◽  
Growth Yield ◽  
Growth And Yield ◽  
Cost Ratio ◽  
Good Growth ◽  
Hydroponic System ◽  
Yield And Quality ◽  
Spinacia Oleracea L

The present experiment entitled “Influence of nutrient concentration on Growth, Yield and Quality of Spinach (Spinacia oleracea L.) in Hydroponic system” was carried out in Shade net, Research Field, Department of Horticulture, SHUATS, Prayagraj during  March- April,2020.. The experiment was laid out in complete randomized design (CRD), with eight treatments, replicated thrice with nutrient field technique hydroponics system and variety Mulayam of Spinach, the treatments were T1 (NPK 6.25 ml/plant), T2 (NPK 8.33 ml/plant), T3 (NPK 10.41 ml/plant), T4 (NPK 12.5 ml/plant), T5 (NPK 14.58 ml/plant), T6 (NPK 16.66 ml/plant), T7 (NPK 18.75 ml/plant) and T0 (NPK 0 ml/plant). From the present experimental findings, it is found that structure with treatment T4 was found best in terms of Growth and yield parameters of spinach in NFT hydroponic system followed by structure with T3 and T1 due to appropriate supply of plant nutrients and the water treated plants had the lowest values. Maximum gross return (1871.30Rs) and net return (746.30 Rs) and maximum benefit cost ratio (1.66) was also observed in treatment T4. As seen from the experiment, it was observed that the treatment T4 was ideal nutrient for Spinach good growth and yield. Therefore, an ideal nutrient concentration helps the plants in good growth and yield.

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