DETERMINATION OF GROWTH AND FRUIT QUALITY PARAMETERS OF SOME APRICOT CULTIVARS IN SUBTROPICAL CLIMATE CONDITIONS OF TURKISH MEDITERRANEAN REGION

2010 ◽  
pp. 323-330 ◽  
Author(s):  
A.A. Polat ◽  
O. Caliskan
Keyword(s):  
Fruit Quality ◽  
Mediterranean Region ◽  
Quality Parameters ◽  
Subtropical Climate ◽  
Climate Conditions

scholarly journals PHENOLOGICAL STAGES AND FRUIT QUALITY PARAMETERS OF SOUR CHERRY GENOTYPES IN ROMANIAN CONDITIONS

2021 ◽  
Vol 10 (19) ◽  
pp. 341-345
Author(s):  
Margareta Corneanu ◽  
Iulia Mineață ◽  
Elena Iurea ◽  
Iuliana-Elena Golache ◽  
Sorina Sîrbu
Keyword(s):  
Fruit Quality ◽  
Sour Cherry ◽  
Quality Parameters ◽  
Chemical Parameters ◽  
Phenological Stages ◽  
Climate Conditions ◽  
Equatorial Diameter ◽  
Recorded Data ◽  
Beginning Of Flowering ◽  
High Level

The paper presents some aspects regarding the influence of environmental factors in 2020 on the development and fruiting of local and foreign sour cherry cultivars. Phenological stages, fruit quality traits and other chemical parameters were studied. The swelling of the buds started with March 07th (`Țarina`), while the beginning of flowering varied during 11 days, taking place between April 8-19th to April 26th. Fruit`s weight have varied between 3.34 g (`Erdi Ipari`) and 6.28 g (`Erdi Bibor`), but of the stone between 0.20 g (`Erdi Ipari`) and 0.32 g (`Erdi Bibor`). Regarding the equatorial diameter, it varied between 16.98 mm and 22.37 mm for the varieties `Erdi Ipari` and respectively `Erdi Bibor`. The fruit ripening took place between June 3rd and 20th. The values of the soluble dry solids recorded data ranging from 13.84% (`Erdi Korai`) to 17.10% (`Erdi Bibor`). The studied sour cherry cultivars showed variability, but some were remarked through the size of the fruit and the high level of soluble dry substances, or by the degree of adaptability to the soil and climate conditions in Northeastern Romania.

scholarly journals Season and Nitrogen Fertilization Effects on Yield and Physicochemical Attributes of Strawberry under Subtropical Climate Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1391
Author(s):  
Shinsuke Agehara ◽  
Maria Cecilia do Nascimento Nunes
Keyword(s):  
Fruit Quality ◽  
Quality Attributes ◽  
N Fertilization ◽  
Minimal Risk ◽  
Subtropical Climate ◽  
Marketable Yield ◽  
Early Season ◽  
Climate Conditions ◽  
N Rates ◽  
Fertilization Effects

Strawberry (Fragaria ×ananassa Duch.) yields in winter production regions are greatly affected by early-season nitrogen (N) fertilization, especially when pre-plant N is not applied. In Florida, United States, applying N at high rates during the early season is a common fertilization practice, but little is known about its impact on fruit quality. The objective of this study was to examine season and early-season N fertilization effects on yield and physicochemical attributes of ‘Florida Radiance’ strawberry grown under subtropical climate conditions. Field experiments were conducted in west-central Florida over two growing seasons. Plants were treated with three N rates (1.12, 1.68, and 2.24 kg/ha/d) over 21 days during the early vegetative growth stage. Thereafter, all plants were treated with the same N rate of 1.12 kg/ha/d until the end of the season. Increasing the early-season N rate increased marketable yield by 15% to 18%, but it had no significant effect on any fruit quality attributes. Contrarily, marketable yield was similar in both seasons, whereas fruit quality showed remarkable seasonal variations. In the season with higher solar radiation and lower temperature, RH, and rainfall during the fruit development period, berries were redder with increased anthocyanin accumulation but had lower pH, acidity, and soluble solids. These results suggest that season has a greater effect on fruit quality than early-season N fertilization, which is complex to dissect because of the interaction between fruit quality attributes and environmental conditions. The use of high N rates during the early season appears to be an effective strategy to improve the profitability of winter strawberry production. Importantly, this fertilization technique has a minimal risk of compromising fruit quality or fertilizer N use efficiency.

scholarly journals Five Rootstocks for “Emperor” Mandarin Under Subtropical Climate in Southern Brazil

2021 ◽  
Vol 12 ◽  
Author(s):  
Maria Aparecida da Cruz ◽  
Carmen Silvia Vieira Janeiro Neves ◽  
Deived Uilian de Carvalho ◽  
Ronan Carlos Colombo ◽  
Jinhe Bai ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Tree Growth ◽  
Disease Incidence ◽  
Soluble Solids ◽  
High Yield ◽  
Soil Drought ◽  
Subtropical Climate ◽  
Climate Conditions ◽  
Rangpur Lime ◽  
Swingle Citrumelo

Rootstocks modulate several characteristics of citrus trees, including vegetative growth, fruit yield and quality, and resistance or tolerance to pests, diseases, soil drought, and salinity, among other factors. There is a shortage of scion and rootstock cultivars among the combinations planted in Brazil. “Ponkan” mandarin and “Murcott” tangor grafted on “Rangpur” lime comprise the majority of the commercial mandarin orchards in Brazil. This low genetic diversity of citrus orchards can favor pest and disease outbreaks. This study aimed to evaluate the agronomic performance, Huanglongbing (HLB) tolerance, and fruit quality of “Emperor” mandarin on five different rootstocks for nine cropping seasons under the subtropical soil-climate conditions of the North region of the state of Paraná, Brazil. The experimental design was a randomized block, with six replications, two trees per block, and five rootstocks, including “Rangpur” lime, “Cleopatra,” and “Sunki” mandarins, “Swingle” citrumelo, and “Fepagro C-13” citrange. The evaluations included tree growth, yield performance, fruit quality, and HLB disease incidence. “Emperor” mandarin trees grafted on “Rangpur” lime and “Swingle” citrumelo had early fruiting and high yield efficiency. “Rangpur” lime also induced the lowest tree growth, but low fruit quality. Trees on “Swingle” citrumelo and “Fepagro C-13” citrange showed low scion and rootstock affinity and produced fruits with high total soluble solids (TSS), with a lower number of seeds for those from trees on “Fepagro C-13” citrange. “Cleopatra” and “Sunki” mandarins induced higher juice content, while fruits from trees on “Cleopatra” also had higher TSS/titratable acidity (TA) ratio. “Emperor” mandarin trees were susceptible to HLB regardless of the rootstocks. Overall, “Cleopatra” and “Sunki” mandarins, “Swingle” citrumelo, and “Fepagro C-13” are more suitable rootstocks for “Emperor” mandarin under Brazilian subtropical conditions than “Rangpur” lime.

scholarly journals Yield and Fruit Characteristics of Various Apricot Cultivars under Subtropical Climate Conditions of the Mediterranean Region in Turkey

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
A. Aytekin Polat ◽  
Oguzhan Caliskan
Keyword(s):  
Mediterranean Region ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Subtropical Climate ◽  
Flowering Period ◽  
Average Yield ◽  
Fruit Characteristics ◽  
Climate Conditions ◽  
Yield Parameters ◽  
Weight Yield

Seven apricot cultivars (“Beliana,” “Canino,” “Precoce de Colomer,” “Feriana,” “Rouge de Sernhac,” “Tokaloğlu,” and “Macar”) were evaluated at the experimental orchard of the Department of Horticulture, Faculty of Agriculture, Mustafa Kemal University, Hatay, Turkey. Phenological and pomological characteristics such as flowering period, average fruit weight, yield, fruit dimensions, flesh/seed ratio, acidity, and total soluble solids (TSSs) were examined. In addition, yield parameters of the cultivars were evaluated. Over four years, the highest average fruit weight was obtained from “Rouge de Sernhac” (37.9 g), while “Feriana” had the lowest (30.9 g). The flesh/seed ratio was the highest in the “Canino” (16.8). “Canino” had the highest TSS content with 14.5%, whereas “Beliana” had the lowest TSS value with 10.6%. “Beliana” and “Feriana” ripened the earliest (May 20) while “Precoce de Colomer” ripened latest (June 7). The average yield was highest on “Rouge de Sernhac” (41.2 kg/tree). “Beliana” and “Feriana” cultivars are recommended for precocity, and “Rouge de Sernhac” and “Tokaloğlu” for middle season in Dörtyol, Turkey.

The Frequency of Occurrence of Handwriting Performance Features Used to Predict Whether Questioned Signatures are Simulated

2018 ◽  
Vol 28 ◽  
pp. 35-42
Author(s):  
David Black ◽  
Bryan Found ◽  
Doug Rogers
Keyword(s):  
Large Population ◽  
Quality Parameters ◽  
Frequency Of Occurrence ◽  
Relative Speed ◽  
Simulation Process ◽  
Spatial Features ◽  
And Performance ◽  
Document Examiners ◽  
Line Trace

Forensic Document Examiners (FDEs) examine the physical morphology and performance attributes of a line trace when comparing questioned to specimen handwriting samples for the purpose of determining authorship. Along with spatial features, the elements of execution of the handwriting are thought to provide information as to whether or not a questioned sample is the product of a disguise or simulation process. Line features such as tremor, pen-lifts, blunt beginning and terminating strokes, indicators of relative speed, splicing and touch ups, are subjectively assessed and used in comparisons by FDEs and can contribute to the formation of an opinion as to the validity of a questioned sample of handwriting or signatures. In spite of the routine use of features such as these, there is little information available regarding the relative frequency of occurrence of these features in populations of disguised and simulated samples when compared to a large population of a single individual’s signature. This study describes a survey of the occurrence of these features in 46 disguised signatures, 620 simulated signatures (produced by 31 different amateur forgers) and 177 genuine signatures. It was found that the presence of splices and touch-ups were particularly good predictors of the simulation process and that all line quality parameters were potentially useful contributors in the determination of the authenticity of questioned signatures. Purchase Article - $10

scholarly journals The Effects of Management (Tillage, Fertilization, Plant Density) on Soybean Yield and Quality in a Three-Year Experiment under Transylvanian Plain Climate Conditions

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 200
Author(s):  
Felicia Chețan ◽  
Cornel Chețan ◽  
Ileana Bogdan ◽  
Adrian Ioan Pop ◽  
Paula Ioana Moraru ◽  
...  
Keyword(s):  
Plant Density ◽  
Conventional Tillage ◽  
Quality Parameters ◽  
Soil Tillage ◽  
Reduced Tillage ◽  
Seeding Rate ◽  
Soybean Yield ◽  
Climate Conditions ◽  
Yield And Quality ◽  
Tillage System

The regional agroecological conditions, specific to the Transylvanian Plain, are favorable to soybean crops, but microclimate changes related to global warming have imposed the need for agrotechnical adaptive measures in order to maintain the level of soybean yield. In this study, we consider the effect of two soil tillage systems, the seeding rate, as well as the fertilizer dosage and time of application on the yield and quality of soybean crops. A multifactorial experiment was carried out through the A × B × C × D − R: 3 × 2 × 3 × 3 − 2 formula, where A represents the year (a1, 2017; a2, 2018; and a3, 2019); B represents the soil tillage system (b1, conventional tillage with mouldboard plough; b2, reduced tillage with chisel cultivator); C represents the fertilizer variants (c1, unfertilized; c2, one single rate of fertilization: 40 kg ha−1 of nitrogen + 40 kg ha−1 of phosphorus; and c3, two rates of fertilization: 40 kg ha−1 of nitrogen + 40 kg ha−1 of phosphorus (at sowing) + 46 kg ha−1 of nitrogen at V3 stage); D represents the seeding rate (1 = 45 germinating grains (gg) m−2; d2 = 55 gg m−2; and d3 = 65 gg m−2); and R represents the replicates (r1 = the first and r2 = the second). Tillage had no effect, the climate specific of the years and fertilization affected the yield and the quality parameters. Regarding the soybean yield, it reacted favorably to a higher seeding rate (55–65 gg m−2) and two rates of fertilization. The qualitative characteristics of soybeans are affected by the fertilization rates applied to the crop, which influence the protein and fiber content in the soybean grains. Higher values of protein content were recorded with a reduced tillage system, i.e., 38.90 g kg−1 DM in the variant with one single rate of fertilization at a seeding rate of 45 gg per m−2 and 38.72 g kg−1 DM in the variant with two fertilizations at a seeding rate of 65 gg m−2.

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