scholarly journals Vermicompost Effects on Bulbing Dynamics, Nonstructural Carbohydrate Content, Yield, and Quality of `Rosado Paraguayo' Garlic Bulbs

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 589-592 ◽  
Author(s):  
Juan A. Argüello ◽  
Alicia Ledesma ◽  
Selva B. Núñez ◽  
Carlos H. Rodríguez ◽  
María del C. Díaz Goldfarb
Keyword(s):  
Dry Weight ◽  
Distribution Patterns ◽  
Soluble Solids ◽  
Soluble Carbohydrates ◽  
Yield And Quality ◽  
Nonstructural Carbohydrate ◽  
Garlic Bulb ◽  
Solids Content ◽  
The Impact

The objectives of this work were to a) determine vermicompost effect on bulbification dynamics in terms of garlic (Allium sativum L.) bulb dry weight and sucrose metabolism and b) evaluate the impact of vermicompost on garlic bulb yield and quality. The treatments were soil (control) and 1 soil: 1 vermicompost (by volume). The use of vermicompost as a substrate caused early bulbing (18 to 20 days) and lengthened bulb filling period. Bulb filling period corresponded to an increase in the total soluble carbohydrates and a later modification in nonstructural carbohydrate distribution patterns regarding fructan (scorodose) metabolism. The vermicompost treatment increased scorodose accumulation, which was directly related to the harvest index, resulting in greater yield and bulb quality. Bulb quality was not modified in terms of bulb pungency and soluble solids content by the use of vermicompost.

scholarly journals Phosphorus (P) improves industrial tomato quality and yield in soil with high phosphorus content

2020 ◽  
pp. 1335-1341
Author(s):  
Arthur Bernardes Cecílio Filho ◽  
Bruno Trevizaneli ◽  
Sergio Manuel Rugeles Reyes
Keyword(s):  
Soluble Solids ◽  
Tomato Crop ◽  
Nutrient Contents ◽  
Soil P ◽  
Yield And Quality ◽  
P Content ◽  
Tomato Processing ◽  
Commercial Yield ◽  
Solids Content

Soils under intensive and successive cropping with central pivot irrigation tend to present high nutrient contents, especially phosphorus (P), which is a nutrient with a great impact on the yield and quality of agricultural products. Among the rotating crops, the application of high P rates is common in processing tomato, although not supported by research. This work evaluates the effect of phosphate fertilization (0, 200, 400, 600, 800, and 1000 kg ha-1 P2O5) on the yield and quality of industrial tomato ‘Heinz 9553’ grown in a soil with high available P content (145 mg dm-3) resulting of an intensive vegetables cultivation, which have high demand by P. The highest total (127.4 t ha-1) and commercial (108.6 t ha-1) yields were obtained with 413.9 and 384 kg ha-1 P2O5, respectively. The results showed that pH of tomato juice, the percentages of green, red, and commercial fruits were not influenced by the applied P rates. However, nutrient delivery increased the soluble solids content up to 356 kg ha-1 P2O5, which is interesting for tomato processing. After harvesting the fruits, the available soil P content was increased with P supply to the plants. For improvement of commercial yield and soluble solids characteristics, the tomato crop shall be fertilised with P even though the soil has high P content.

scholarly journals Influence Of Soil Type On Yield And Quality Of Different Apple Cultivars

2017 ◽  
Vol 74 (1) ◽  
pp. 21
Author(s):  
Alina Viorica ILIE ◽  
Cristina PETRISOR ◽  
Dorel HOZA ◽  
Viorel OLTENESCU
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Soil Type ◽  
Dry Matter ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Yield And Quality ◽  
Apple Cultivars ◽  
Solids Content

The objective of this study was to determine influence of different soil type on apple yield and quality. To investigate the variation in fruit quality, apples were harvested at commercial maturity on two different soil type. The investigations was conducted in experimental apple orchards located in Focsani region on two different soil type: luvic  brown typical and  luvic brown pseudogleizate. Fruits of Jonathan and Golden Delicios cultivars were tested for color, soluble solids content, total acidity, ascorbic acid, anthocyanins content and chlorophyls content with specific analytrical methods. At harvest yield, dry matter, soluble solids content, ascorbic acid and acidity were affected by soil type. In this study, no significant soil effect was found on color, anthocyanins and chlorophyll fruit content. The results obtained in this study suggest that luvic brown pseudogleizate soil leading to increased yields and enhanced fruit quality.

scholarly journals Increasing doses of potassium increases yield and quality of muskmelon fruits under greenhouse

2018 ◽  
Vol 36 (2) ◽  
pp. 184-188 ◽  
Author(s):  
Pablo Preciado-Rangel ◽  
Lilia Salas-Pérez ◽  
Miguel Á Gallegos-Robles ◽  
Francisco H Ruiz-Espinoza ◽  
Alma V Ayala-Garay ◽  
...  
Keyword(s):  
Consumer Preferences ◽  
Optimal Dose ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Future Research ◽  
Yield And Quality ◽  
Equatorial Diameter ◽  
Randomized Design ◽  
Solids Content

ABSTRACT Potassium (K) influences the variables that determine quality of fruit and the concentration of phytonutrients to human health and therefore consumer preferences. The objective of this study was to evaluate the effect of different concentrations of K in the nutrient solution (5, 7, 9 and 11 mM of K) on yield and quality of Cantaloupe fruits under greenhouse conditions. The experiment was conducted in pots using a completely randomized design with 15 replications. Analysis of variance, correlation, regression and multiple comparisons among means (Tukey p<0.05) were performed. Results showed higher values of yield, average fruit weight, equatorial diameter, pulp thickness, fruit firmness, soluble solids content, phenolic content and antioxidant capacity of fruits at the concentrations of 9 and 11 mM of K. All variables, except equatorial diameter, increased their values as K concentrations increased, showing a lineal, positive and significant trend, which evidences that the optimal dose of K in muskmelon is higher than 11 mM, being suggested for future research, to evaluate concentrations above this value.

scholarly journals Ecological nutrient solutions on yield and quality of melon fruits

2020 ◽  
Vol 38 (1) ◽  
pp. 39
Author(s):  
Jose Antonio Gonzalez ◽  
Karen Marlen García-Villela ◽  
Pablo Preciado-Rangel ◽  
Ernesto Sifuentes-Ibarra ◽  
Lilia Salas-Pérez ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Soluble Solids ◽  
Inorganic Nutrient ◽  
Total Phenolic ◽  
Compost Tea ◽  
Yield And Quality ◽  
Solids Content ◽  
Nutrient Solutions ◽  
Vermicompost Leachate

Due to health benef its, organic food products have increased their demand in recent years. The objective was evaluating the effects of three ecological nutrient solutions, (Tea of compost, vermicompost, and leachate of vermicompost), on yield and quality of melon plants. As a control, an inorganic nutrient solution was used. Our results showed that compost tea promoted fruit yield equivalent to the inorganic nutrient solution. Plants fertilized with compost tea yielded fruits with the highest value of soluble solids content (9.98 ºBrix). Regarding antioxidant capacity, fruits fed with compost tea and vermicompost leachate obtained higher values than fruits fed with nutrient solution, fruits fed with vermicompost leachate obtained statistically higher values than fruits fed with chemical nutrient solution. Concerning to total phenolic content plants fed with vermicompost leachate obtained the highest value statistically similar to control plants fed with the Steiner nutrient solution. 

scholarly journals Variation in the Cooked and Chipping Quality of Taro

2000 ◽  
Vol 10 (4) ◽  
pp. 823-829 ◽  
Author(s):  
Robert E. Paull ◽  
Gail Uruu ◽  
Alton Arakaki
Keyword(s):  
Dry Matter ◽  
Taste Preference ◽  
Dry Weight ◽  
Matter Content ◽  
Soluble Solids ◽  
Vascular Bundles ◽  
Dry Matter Content ◽  
Yield And Quality ◽  
Physical And Chemical

Taro [Colocasia esculenta (L.) Schott] corms from 57 vegetatively propagated cultivars were evaluated for yield, physical and chemical characteristics, and either microwaved, microwaved and ground into poi, or fried. Poi color ranged from purple to orange or yellow and the dry matter content from 18.3 to 48%. The taste panel preferred poi made from a number of other cultivars than that made from the most common cultivar `Lehua Maoli' used in Hawaii, and a darker bluish-red poi was preferred. Corm total soluble solids were positively correlated to corm specific gravity and dry matter, and to the taste preference of microwaved corm and poi. The fried cultivars varied widely in yield and corm color varied from cream to white. Additionally, some cultivars did not have purple vascular bundles, and others were acrid after frying. Chip oil content was negatively correlated to corm weight, dry weight, and chip yield. The `Bin Liang' cultivar was judged the best overall in fried chip taste. Considerable variation in corm yield and quality characteristics existed in this widely cultivated vegetatively propagated tropical crop.

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

2009 ◽  
Vol 70 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Marek Gajewski ◽  
Zenon Węglarz ◽  
Anna Sereda ◽  
Marta Bajer ◽  
Agnieszka Kuczkowska ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Carrot Juice ◽  
Harvest Time ◽  
Experimental Station ◽  
Colour Parameters ◽  
Solids Content ◽  
Nitrates Content

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest TermIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F1and Trafford F1cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha-1and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO3) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b*system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO3concentration was found in carrots fertilized with 120 kg·ha-1of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a*and b*values were observed at the last term of harvest.

Агрономическая эффективность промышленной (голландской) технологии возделывания картофеля

2018 ◽  
Author(s):  
C. Coy ◽  
A.V. Shuravilin ◽  
O.A. Zakharova
Keyword(s):  
Heavy Metals ◽  
Regression Analysis ◽  
Positive Response ◽  
Growth Yield ◽  
Correlation And Regression Analysis ◽  
Yield And Quality ◽  
Quality Of Products ◽  
High Degree ◽  
The Impact

Приведены результаты исследований по изучению влияния промышленной технологии возделывания картофеля на развитие, урожайность и качество продукции. Выявлена положительная реакция растений на подкормку K2SO4 в период посадки. Корреляционно-регрессионный анализ урожайности и качества клубней выявил высокую степень достоверности результатов опыта. Содержание нитратов и тяжелых металлов в клубнях было ниже допустимых величин.The results of studies on the impact of industrial technology of potato cultivation on growth, yield and quality of products. There was a positive response of plants to fertilizer K2SO4 in the period of planting. Correlation and regression analysis of yield and quality of tubers revealed a high degree of reliability of the results of experience. The contents of nitrates and heavy metals in tubers was below the permissible values.

Effect of Integrated Nutrient Management on Yield and Quality of Garlic cv. Yamuna Safed-3

2020 ◽  
Vol 7 (04) ◽  
Author(s):  
A B Priyanshu ◽  
M K Singh ◽  
Mukesh Kumar ◽  
Vipin Kumar ◽  
Sunil Malik ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Quality Parameters ◽  
Organic Fertilizers ◽  
Research Centre ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
The Impact ◽  
Horticultural Research

An experiment was conducted at Horticultural Research Centre, SVP University of Agriculture and Technology, Meerut (UP) during Rabi season of 2018-19 to assess the impact of different INM doses on yield and quality parameters of garlic. A total of ten treatments consisting of combinations of inorganic fertilizers, organic fertilizers and bio-fertilizers like T1- (Control), T2RDF (100:50:50 kg NPK ha-1), T3-RDF + 20 kg sulphur + FYM 20 ton ha-1, T4- RDF + 20 kg sulphur + VC 4 ton ha-1, T5- 75% RDF + 40 kg sulphur + 5 ton FYM ha-1+ PSB 5 kg ha-1, T6-75% RDF + 40 kg sulphur + 2 ton VC + Azotobacter 5 kg ha-1, T7- 75% RDF + 40 kg sulphur + FYM 3 ton + VC 1 ton+ PSB 5 kg + Azotobacter 5kg ha-1, T8- 50% RDF + 40 kg sulphur + FYM 5 ton + VC2 ton + PSB 5 kg ha-1, T9- 50% RDF + 40 kg sulphur + FYM5 ton + VC 2 ton+ Azotobacter 5 kg ha-1and T10- 50% RDF + 40 kg sulphur + FYM 5 ton + VC2 ton + PSB 5 kg + Azotobacter 5 kg ha-1 were used in Randomized Block Design and replicated thrice. Out of these an application of T7 (75% RDF + 40 kg sulphur + FYM3 ton + VC 1 ton ha-1 + PSB 5 kg + Azotobacter 5 kg ha-1) was found to be significantly superior in term of yield and attributing parameters of garlic.

scholarly journals Foliar Urea with N-(n-butyl) Thiophosphoric Triamide for Sustainable Yield and Quality of Pineapple in a Controlled Environment

2021 ◽  
Vol 13 (12) ◽  
pp. 6880
Author(s):  
Mohammad Amdadul Haque ◽  
Siti Zaharah Sakimin ◽  
Phebe Ding ◽  
Noraini Md. Jaafar ◽  
Mohd Khanif Yusop ◽  
...  
Keyword(s):  
Nitrogen Loss ◽  
Growth Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Urea Solution ◽  
Urease Inhibitor ◽  
N Losses ◽  
N Accumulation ◽  
Yield And Quality

In agricultural production, nitrogen loss leads to economic loss and is a high environmental risk affecting plant growth, yield, and quality. Use of the N fertilizer with a urease inhibitor is thus necessary to minimize N losses and increase the efficiency of N. This study aimed to evaluate the effects of N-(n-butyl) Thiophosphoric Triamide (NBPT) on the growth, yield, and quality of pineapple. The experiment involved two foliar fertilizer treatments: 1% (w/v) urea solution with NBPT (2.25 mL kg−1 urea) was treated as NLU (NBPT Liquid Urea), and the same concentration of urea without NBPT served as the control. Both were applied 12 times, starting 1 month after planting (MAP) and continuing once a month for 12 months. The application of urea with NBPT notably increased the above-ground dry biomass per plant (20% and 10% at 8 and 12 MAP, respectively), leaf area per plant (23% and 15% at 8 and 12 MAP, respectively), N accumulation per plant (10%), PFPN (Partial Factor Productivity) (13%), and average fruit weight (15%) compared to the treatment with urea alone (control). The analysis of quality parameters indicated that urea with NBPT improves TSS (Total Soluble Solids) (19%), ascorbic acid (10%), and sucrose (14%) but reduces the total organic acid content (21%) in pineapple. When using urea with a urease inhibitor (NBPT), there was a significant improvement in growth, yield, quality, and nitrogen use efficiency, with the additional benefit of reduced nitrogen losses, in combination with easy handling. Hence, urea with a urease inhibitor can be used as a viable alternative for increasing pineapple yield by boosting growth with better fruit quality.

Journal Impact Factors Do Not Equitably Reflect Academic Staff Performance in Different Medical Subspecialties

2004 ◽  
Vol 52 (8) ◽  
pp. 531-536
Author(s):  
Richard J. Epstein
Keyword(s):  
Academic Staff ◽  
General Medicine ◽  
Distribution Patterns ◽  
Skewed Distribution ◽  
Impact Factors ◽  
Separate Analysis ◽  
Medical Specialties ◽  
Staff Performance ◽  
The Impact

BackgroundThe simplest variables to quantify on an academic curriculum vitae are the impact factors (IFs) of journals in which articles have been published. As a result, these measures are increasingly used as part of academic staff assessment. The present study tests the hypotheses that IFs exhibit patterns that are consistent between journals of different specialties and that these IFs reflect the quality of staff academic performance.MethodsThe IFs of a sample of journals from each of four medical specialties—medicine, oncology, genetics, and public and occupational health—were downloaded from the Science Citation Index and compared. Overall and specialty-specific journal IF frequencies were analyzed with respect to distribution patterns, averages, and skew.ResultsApproximately 91% of journal IFs fell within the 0 to 5 range, with 97% being less than 10. The overall IF distribution featured a positive skew and a mean of 2.5. Separate analysis of the journal specialty subsets revealed significant differences in IF means (genetics 3.4 > oncology 3.1 > medicine 2.0 > public health 1.6; p < .006), all of which well exceeded the respective IF medians. Journals from the general medicine category exhibited both the lowest IF median (0.7) and the most positively skewed distribution.ConclusionThe distribution of IFs exhibits degrees of skew, numeric average, and spread that differ significantly between journal specialty subsets. This suggests that factors other than random variations underlie much of the IF variation between specialty journals and reduces the plausibility of a reliable correlation between IFs and the quality of academic staff performance. It is concluded that a dominant emphasis on IFs in academic recruitment and promotion may select for long-term faculty characteristics other than academic quality alone.

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