scholarly journals Migration of Chlorine in Plant–Soil–Leaching System and Its Effects on the Yield and Fruit Quality of Sweet Orange

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaodong Liu ◽  
Chengxiao Hu ◽  
Zongying Zhu ◽  
Muhammad Riaz ◽  
Xiaoman Liu ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Sweet Orange ◽  
Soil Layer ◽  
Potassium Sulfate ◽  
Annual Rainfall ◽  
Soil Core ◽  
Soil Leaching ◽  
Plant Soil ◽  
Citrus Production

Chlorine (Cl) is indispensable for the growth of plants. While rarely systematic reports are available for the effect of Cl-containing fertilizers on citrus production. This study aimed to investigate the impacts of various Cl-containing fertilizers on the nutrients in the leaves, the yield and quality of sweet orange, and the Cl migration in the plant–soil–leaching system. A 5-year field experiment (2016–2020) with five Cl treatments (0, 75, 150, 450, and 900 kg ha−1), and soil core lysimeter test with five Cl levels (0, 150, 225, 300, and 450 kg ha−1) were carried out. The results showed that 77.0% of Cl leached into above 60 cm deeper soil layer, with calcium as the main accompanying ions, resulting in less Cl being absorbed by the citrus plants. The content of Cl in the leaves and soil was enhanced by the increasing input of Cl-containing fertilizer, without yearly increased characteristics, under a mean annual rainfall of 1,474 mm. Chlorine significantly increased the yield (13.24–37.8 9%), fruit weight, and vitamin C (Vc), in addition to enhancing the flavor and the juice yield of sweet orange via improving the absorption of N and K. Moreover, the long-term application of potassium sulfate has elevated the accumulation of sulfur in the soil and in leaves; it is becoming a potential risk factor for citrus production. Taken together, the application of Cl-containing fertilizer in sweet orange is feasible, and trace absorbance of Cl could improve the yield and fruit quality of sweet orange.

Effects of two reflective materials on gas exchange, yield, and fruit quality of sweet orange tree Citrus sinensis (L.) Osb.

2020 ◽  
Vol 118 ◽  
pp. 126071 ◽  
Author(s):  
Gregorio Gullo ◽  
Antonio Dattola ◽  
Vincenzo Vonella ◽  
Rocco Zappia
Keyword(s):  
Gas Exchange ◽  
Fruit Quality ◽  
Citrus Sinensis ◽  
Sweet Orange ◽  
Orange Tree

Influence of different rootstocks on yield precocity and fruit quality of ‘Tarocco Scirè’ pigmented sweet orange

2018 ◽  
Vol 230 ◽  
pp. 62-67 ◽  
Author(s):  
A. Continella ◽  
C. Pannitteri ◽  
S. La Malfa ◽  
P. Legua ◽  
G. Distefano ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Sweet Orange

scholarly journals CitrusYield: A Dashboard for Mapping Yield and Fruit Quality of Citrus in Precision Agriculture

Agronomy ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 128 ◽  
Author(s):  
María Gyomar González-González ◽  
Juan Gómez-Sanchis ◽  
Jose Blasco ◽  
Emilio Soria-Olivas ◽  
Patricia Chueca
Keyword(s):  
Fruit Quality ◽  
Precision Agriculture ◽  
New Technologies ◽  
Crop Management ◽  
Yield And Quality ◽  
Citrus Production ◽  
Quality Maps ◽  
Link Information ◽  
Variable Production

The application of new technologies in precision agriculture offers the possibility to link information to very specific crop locations. The spatial representation of these agricultural data through yield and fruit quality maps allows for crop management in a precise way that means that agricultural operations may be carried out considering intraorchard variability, thus resulting in greater efficiency. The aim of this work was to advance the development of new tools for the generation of yield and quality maps for precision agriculture. A new tool was implemented for citrus through a dashboard called CitrusYield that integrates the requirements demanded by technicians and farmers in terms of spatial distribution and the quality of their citrus production. The data for testing were collected by a prototype of a citrus harvest-assist platform. In order to obtain maps showing heterogeneity of production, an experimental plot with different varieties and variable production was chosen. The maps, tables and graphs showing different crop data were generated automatically by CitrusYield from the analysis of the data collected. The main advantage of knowing the differences in production between the swaths and areas inside the crop is to provide the grower with precise information to make accurate decisions for localised crop management, such as fertilisation, irrigation, pest and disease control, etc.

scholarly journals Easily Extractable Glomalin-Related Soil Protein as Foliar Spray Improves Nutritional Qualities of Late Ripening Sweet Oranges

Horticulturae ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 228
Author(s):  
Lu-Lu Meng ◽  
Sheng-Min Liang ◽  
Anoop Kumar Srivastava ◽  
Yan Li ◽  
Chun-Yan Liu ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Mycorrhizal Fungi ◽  
Foliar Application ◽  
Sweet Orange ◽  
Foliar Spray ◽  
Fruit Weight ◽  
Soluble Solid Content ◽  
Hyphal Length ◽  
Soil Protein

The role of arbuscular mycorrhizal fungi in sweet oranges is well known, but the function of their secondary metabolite, especially the easily extractable glomalin-related soil protein (EE-GRSP), an active fraction of glomalin, is still unclear. The proposed study aimed to analyze the field response of foliar application of exogenous EE-GRSP on tree mycorrhizal development and fruit quality of two sweet orange (Citrus sinensis L. Osbeck) varieties viz., Lane Late Navel (LLN) and Rohde Red Valencia (RRV). Application of EE-GRSP significantly increased the root mycorrhizal colonization and soil mycorrhizal hyphal length in both the sweet orange varieties. The external quality of fruits (fruit weight, polar diameter, and equatorial diameter) also improved in response to foliar application of EE-GRSP in both sweet orange varieties. However, EE-GRSP treatment showed no change in fruit soluble solid content, while it increased the Vc content, solids-acid ratio, fructose, glucose, and sucrose content of sarcocarp in the two sweet oranges varieties. The LLN variety treated with EE-GRSP recorded significantly higher N, P, K, Fe, and Si content of sarcocarp as a mark of nutritional quality, while the RRV variety treated with EE-GRSP displayed a higher concentration of nutrients like Cu, Fe, Si, and Zn in the sarcocarp as compared with the corresponding non-treated control. To the best of our knowledge, this is the first report regarding the improvement in fruit quality of late-ripening sweet oranges (especially LLN) in response to foliar application of EE-GRSP as another potential biostimulant.

scholarly journals Citrus Scion and Rootstock, Topping Height, and Tree Spacing Affect Tree Size, Yield, Fruit Quality, and Economic Return

1995 ◽  
Vol 120 (5) ◽  
pp. 861-870 ◽  
Author(s):  
T.A. Wheaton ◽  
J.D. Whitney ◽  
W.S. Castle ◽  
R.P. Muraro ◽  
H.W. Browning ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Citrus Sinensis ◽  
Sweet Orange ◽  
Tree Density ◽  
Early Years ◽  
Poncirus Trifoliata ◽  
Factorial Experiment ◽  
Economic Returns ◽  
Economic Return

A factorial experiment begun in 1980 included `Hamlin' and `Valencia' sweet-orange scions [Citrus sinensis (L.) Osb.], and Milam lemon (C. jambhiri Lush) and Rusk citrange [C. sinensis × Poncirus trifoliata (L.) Raf.] rootstocks, tree topping heights of 3.7 and 5.5 m, between-row spacings of 4.5 and 6.0 m, and in-row spacings of 2.5 and 4.5 m. The spacing combinations provided tree densities of 370, 494, 667, and 889 trees ha. Yield increased with increasing tree density during the early years of production. For tree ages 9 to 13 years, however, there was no consistent relationship between yield and tree density. Rusk citrange, a rootstock of moderate vigor, produced smaller trees and better yield, fruit quality, and economic returns than Milam lemon, a vigorous rootstock. After filling their allocated space, yield and fruit quality of trees on Milam rootstock declined with increasing tree density at the lower topping height. Cumulative economic returns at year 13 were not related to tree density.

scholarly journals Initial production and fruit quality of scion-rootstock combinations in orange trees in Amazonas

2021 ◽  
Vol 43 (3) ◽  
Author(s):  
Jefferson Costa Santos ◽  
Cláudio Luiz Leone Azevedo ◽  
José Eduardo Borges de Carvalho ◽  
Silvana Pimentel de Oliveira ◽  
Ajax de Souza Ferreira ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Rangpur Lime ◽  
Yield Efficiency ◽  
Total Titratable Acidity ◽  
Citrus Production ◽  
Technological Index ◽  
Orange Trees

Abstract The cultivation of orange trees in Amazonas, Brazil relies predominantly on grafted plants combining ‘Pera’ scion and ‘Rangpur’ lime rootstock. Alternative rootstocks better adapted to the conditions of the region have not been investigated. Therefore, the objective of this research was to test seven rootstocks for the production of high-quality oranges under the typical conditions of the Amazon. Citrus production was evaluated from May to August between 2017 and 2019, based on the variables of cumulative yield, yield efficiency, and crop-yield index over the study period. The fruit physicochemical quality was evaluated by quantification of total soluble solids, total titratable acidity, ratio, juice percentage, and technological index. ‘Indio,’ ‘BRS Bravo’, and ‘Riverside’ genotypes combined with ‘Pera’/CNPMF scion had the highest yield and good fruit quality. They are potentially the most suitable combinations to grow sweet oranges in the Amazon.

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