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Horticulturae
Special Issues
Recent Trends in Citrus Cultivation and Physiology Research
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Recent Trends in Citrus Cultivation and Physiology Research

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Fruit Production Systems".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 4676

Special Issue Editors

Prof. Dr. Xingzheng Fu

E-Mail Website
Guest Editor
Citrus Research Institute, Southwest University, Chongqing 400700, China
Interests: mineral nutrition; stress; citrus cultivation; molecular biology
Dr. Xiaopeng Lu

E-Mail Website
Guest Editor
Horticulture Department, Hunan Agricultural University, Changsha 410128, China
Interests: citrus cultivation; plant physiology; fruit quality; water stress
Dr. Yizhong He

E-Mail Website
Guest Editor
Citrus Research Institute, Southwest University, Chongqing 400700, China
Interests: citrus cultivation; yield and quality; molecular biology

Special Issue Information

Dear Colleagues,

Citrus, as an important horticultural crop, ranks first in terms of area and yield of all kinds of fruits in the world. According to FAO data statistics, the world's citrus cultivation area and yield has reached about 10.07 million hectares and 158 million tons in 2020, respectively. However, citrus production is also faced with such cultivation problems as nutrient disorder, low yield, high acid and low sugar, fruit cracking, granulation, and freezing. Citrus researchers around the world have carried out a lot of research on these issues, thus ensuring the development of the citrus industry.

This Special Issue aims at gathering the latest discoveries in the field of Citrus Cultivation and Physiology. Original research papers related to citrus nutrition and fertilization, flowering and fruit setting, fruit yield and quality, photosynthesis, fruit cracking, granulation, and freezing, as well as topical reviews expounding current knowledge and future perspectives are welcome.

Prof. Dr. Xingzheng Fu
Dr. Xiaopeng Lu
Dr. Yizhong He
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • citrus cultivation
  • mineral nutrition
  • yield and quality
  • physiological disease

Published Papers (3 papers)

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Research

11 pages, 2125 KiB  
Article
The Increase in Kaffir Lime Leaf Production Due to Gibberellin Is Diminished by Pruning
by Rahmat Budiarto, Syariful Mubarok, Muhammad Achirul Nanda, Maulidan Nabiyyu and Moh Haris Imron S Jaya
Horticulturae 2023, 9(9), 1018; https://doi.org/10.3390/horticulturae9091018 - 09 Sep 2023
Cited by 2 | Viewed by 1077
Abstract
Gibberellin regulates the flowering and fruiting response of fruit-oriented citrus, but there are a lack of studies on the methods for boosting the production of leaf-oriented citrus. This study aimed to analyze the effects of exogenous gibberellins and pruning on the leaf production [...] Read more.
Gibberellin regulates the flowering and fruiting response of fruit-oriented citrus, but there are a lack of studies on the methods for boosting the production of leaf-oriented citrus. This study aimed to analyze the effects of exogenous gibberellins and pruning on the leaf production of kaffir lime. Kaffir lime seedlings, grafted into rangpur lime, were arranged in a split-plot design under an open field condition. Four gibberellin concentrations (control, 0.005%, 0.01%, and 0.02%) and two pruning levels (no pruning and pruning at 30 cm main stem) were subjected to selected seedlings. The result showed a contrasting effect between gibberellin and pruning on the plant height and shoot number. Pruning significantly reduced the flush number, flush length, leaf length, leaf area, and leaf weight by 38%, 44%, 17%, 26%, and 28%, respectively. Without pruning, applying 0.02% gibberellin could produce the longest flush, with an increase in the number and weight of leaves by about 77% and 64%, compared with the control, respectively. Multivariate analysis also confirmed the positive effect of gibberellin on leaf production. However, these positive results are diminished by pruning due to limited source capacity, as indicated by the fewer leaves. Future research is required to analyze whether increasing gibberellin concentrations can speed up the recovery of post-pruned kaffir lime. Full article
(This article belongs to the Special Issue Recent Trends in Citrus Cultivation and Physiology Research)
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14 pages, 2469 KiB  
Article
High Soil pH and Plastic-Shed Lead to Iron Deficiency and Chlorosis of Citrus in Coastal Saline–Alkali Lands: A Field Study in Xiangshan County
by Yili Zang, Yu Huang, Xiaoyan Chang, Jiuzhou Chen, Tianchi Jiang, Zhiying Wu, Lingli Lu and Shengke Tian
Horticulturae 2023, 9(4), 437; https://doi.org/10.3390/horticulturae9040437 - 28 Mar 2023
Cited by 1 | Viewed by 1351
Abstract
Citrus are one of the most important fruit crops in the world, and the citrus hybrid cv. Beni-Madonna (BM) is widely cultivated in Xiangshan County in China because of its profitability. However, due to the lack of technical guidance and management, nutritional unbalances [...] Read more.
Citrus are one of the most important fruit crops in the world, and the citrus hybrid cv. Beni-Madonna (BM) is widely cultivated in Xiangshan County in China because of its profitability. However, due to the lack of technical guidance and management, nutritional unbalances of trees occur frequently and are a major constraint for fruit quality and yield. In this study, the soil and fruit nutritional status of 62 citrus orchards in three diverse landforms (mountain, flat, and coastal saline–alkali land) located in Xiangshan County has been investigated. Higher pH, calcium, and magnesium content but lower soil organic matter, nitrogen, iron, and boron content were observed in orchards of the coastal saline–alkali land compared with the mountain and flat lands. Compared to Citrus x unshiu, another major hybrid citrus cultivar in Xiangshan county, the Fe deficiency in fruits of BM in coastal saline–alkali lands was more severe, leading to chlorosis symptoms. In addition, long-term cultivation under plastic housing increased soil salinization and affected the absorption of Fe and other nutrients by BM. In conclusion, organic fertilizers, acidic fertilizers, and micronutrient fertilizers should be applied in citrus orchards located in coastal saline–alkali lands. Especially, BM orchards should be supplemented with iron fertilizer and not rely excessively on protection with plastic films. Full article
(This article belongs to the Special Issue Recent Trends in Citrus Cultivation and Physiology Research)
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14 pages, 1637 KiB  
Article
Tolerance and Physiological Responses of Citrus Rootstock Cultivars to Boron Toxicity
by Wanyun Yang, Huidong Yang, Lili Ling, Changpin Chun and Liangzhi Peng
Horticulturae 2023, 9(1), 44; https://doi.org/10.3390/horticulturae9010044 - 02 Jan 2023
Viewed by 1583
Abstract
Boron (B) is an essential trace nutrient element for citrus, but excessive B levels are frequently encountered in citrus production, potentially resulting in citrus toxicity. To better understand the tolerance and physiological responses of citrus rootstocks to excess B levels, Trifoliate orange, Ziyangxiangcheng, [...] Read more.
Boron (B) is an essential trace nutrient element for citrus, but excessive B levels are frequently encountered in citrus production, potentially resulting in citrus toxicity. To better understand the tolerance and physiological responses of citrus rootstocks to excess B levels, Trifoliate orange, Ziyangxiangcheng, Carrizo citrange, and Red tangerine were treated with four B concentrations (0.05, 0.2, 0.8, and 3.2 mmol/L). High B concentrations resulted in leaf yellowing and shedding and eventual plant death. Chlorophyll content and photosynthetic capacity declined in response to high B concentrations, and relative leaf cell conductivity rose significantly. Trifoliate orange was the first to exhibit symptoms of B toxicity, with the highest levels of B-associated injury. As B concentrations rose, the height increment ratio declined, as did belowground and aboveground dry fresh weight. Soluble protein content initially rose and then fell, while proline content, SOD activity, and POD activity rose with B concentrations. B levels in these rootstocks also increased significantly, with the greatest increases in the leaves. Principal component analysis and subordinate function results revealed that the relative rank order for the B tolerance of citrus rootstocks was: Red tangerine > Carrizo citrange > Ziyangxiangcheng > Trifoliate orange. Full article
(This article belongs to the Special Issue Recent Trends in Citrus Cultivation and Physiology Research)
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