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Journals
Agronomy
Special Issues
Recent Insights in Physiology of Tree Fruit Production
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Recent Insights in Physiology of Tree Fruit Production

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Horticultural and Floricultural Crops".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1102

Special Issue Editors

Dr. Hao Xu

E-Mail Website
Guest Editor
Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, BC V0H 1Z0, Canada
Interests: tree fruit physiology; aquaporin; plant ecophysiology; mycorrhiza
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Avi Sadka

E-Mail Website
Guest Editor
Department of Fruit Trees Sciences, Institute of Plant Sciences, ARO, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Isreal
Interests: fruit growth and development; fruit quality; control of alternate bearing; practical aspects of citriculture
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Physiological mechanisms are key to unlock our understanding of the resilience and efficiency of tree fruit production under variable environmental conditions and horticultural mitigations. This Special Issue aims to highlight the recent advances in the following broad physiological topics which are pertinent to the crop performance, yield potential and fruit quality of a variety of tree fruits.

  1. Fruit set, fruit quality, fruit disorder and yield under stresses and horticultural mitigations;
  2. Bud differentiation, alternate bearing, a variety of crop load management measures;
  3. Roles of phytohormones, efficacy of innovative plant growth regulators;
  4. Rootstock–scion interaction, roles of rootstocks and canopy structures in vigor control, resource use and allocation, crop resilience and yield potential;
  5. Plant–water relations, carbohydrate assimilation and partitioning, fruit growth and development.

We invite contributions from the field of ecophysiology and molecular physiology of apple, pear, sweet cherry, peach, citrus and other tree fruits. Research articles, reviews, opinions, communications and methods are welcomed.

Dr. Hao Xu
Prof. Dr. Avi Sadka
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. Agronomy 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 2600 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

  • abiotic stress
  • alternate bearing
  • carbohydrates
  • crop load
  • fruit growth and development
  • fruit set
  • horticultural mitigation
  • phytohormone
  • plant–water relations
  • rootstock

Published Papers (1 paper)

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Research

14 pages, 2656 KiB  
Article
Seasonal Changes in Amylose and Starch Compositions in ‘Ambrosia’ Apples Associated with Rootstocks and Orchard Climatic Conditions
by Changwen Lu, Hao Xu, Brenda Lannard and Xiaotang Yang
Agronomy 2023, 13(12), 2923; https://doi.org/10.3390/agronomy13122923 - 28 Nov 2023
Viewed by 796
Abstract
The dynamics of amylose (AM) and total starch content (TSC) have been studied in several apple varieties; however, their responses to environmental variables and rootstocks are less understood in new low-climacteric varieties. In addition, the pertinence of AM and TSC to fruit dry [...] Read more.
The dynamics of amylose (AM) and total starch content (TSC) have been studied in several apple varieties; however, their responses to environmental variables and rootstocks are less understood in new low-climacteric varieties. In addition, the pertinence of AM and TSC to fruit dry matter content (DMC), fruit quality at harvest, and quality retention after storage is little understood. In this study, we investigated the seasonal changes in AM and TSC of ‘Ambrosia’ apples grafted onto dwarfing rootstocks Malling 9 (M.9) and Budagovsky 9 (B.9) in two consecutive years, 2016 and 2017, in the Okanagan-Similkameen Valley, British Columbia, Canada. Enzymatic methods with Megazyme® kits were used to analyze the fruit samples collected from four orchards in the growing season. In 2016, the orchard microclimate exhibited cooler nights and greater diurnal temperature ranges (DTRs) compared to 2017. As a result, the AM content and AM portion in TSC were significantly higher in 2016, with levels peaking over 40% compared to the values observed in 2017. However, there were no significant differences in peak values of TSC between the two years. Additionally, the apples grown on the B.9 rootstock consistently showed higher levels of AM and AM percentage compared to those grown on the M.9 rootstock. The study also used Felix 750 Produce Quality Meter, a handheld infrared spectrometer, to assess the dry matter content (DMC) of growing fruit, which showed a strong correlation with AM content (r > 0.8). After being harvested at commercial maturity and stored in controlled atmospheric chambers (CA) for 8 months, fruit quality analysis suggested that the AM level and its percentage in TSC played an important role in determining ‘Ambrosia’ apple quality after long-term storage. Full article
(This article belongs to the Special Issue Recent Insights in Physiology of Tree Fruit Production)
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