Thank you all for your participation in IHC 2026!
Frequently Asked Questions (FAQ)
Certificate of Presentation
Please complete the form from “Certificate of Presentation”.
Application deadline: September 30, 2026 (JST).
Please make sure to read the important notes at the top of the application form before applying.
Certificate of Attendance
Please download it from your Confit account.
Log into Confit and select "Certificate Download"
Please complete the form from “Certificate of Presentation”.
Application deadline: September 30, 2026 (JST).
Please make sure to read the important notes at the top of the application form before applying.
Certificate of Attendance
Please download it from your Confit account.
Log into Confit and select "Certificate Download"
Registration & Payment
Q. How do I get my INVOICE/ RECEIPT?A. We kindly ask that you download your invoice/receipt as follows:
1. Log in with A-Pass：https://ihc.confit.atlas.jp/login
2. Go to ‘Registration Info’ and click ‘Invoice Download’ / ‘Receipt Download’
Q. I need an invoice addressed to my institution or company.
A. You can download the invoice in PDF format with your desired addressee and issued date.
1. Log in with A-Pass：https://ihc.confit.atlas.jp/login
2. Click ‘Invoice Download’ / ‘Receipt Download’
3. Edit the addressee from the right column "Download Invoice"
Q. I would like an invoice with additional information of my affiliation. How can I request it?
A. Please contact to the management office: reg-ihc2026@convention.co.jp
Q: I cannot find the VAT number.
A. Japan does not operate under the VAT number system, so we are unable to provide a VAT number.
A. You can download the invoice in PDF format with your desired addressee and issued date.
1. Log in with A-Pass：https://ihc.confit.atlas.jp/login
2. Click ‘Invoice Download’ / ‘Receipt Download’
3. Edit the addressee from the right column "Download Invoice"
Q. I would like an invoice with additional information of my affiliation. How can I request it?
A. Please contact to the management office: reg-ihc2026@convention.co.jp
Q: I cannot find the VAT number.
A. Japan does not operate under the VAT number system, so we are unable to provide a VAT number.
Official Photographs
We are currently organizing the congress photographs.
Thank you for your patience while we prepare them for sharing.
We are currently organizing the congress photographs.
Thank you for your patience while we prepare them for sharing.
Acta Horticulturae Manuscript Submission
★Deadline: September 15, 2026
Q. When is the deadline for manuscript submission?
A. September 15, 2026
Q. Where can I find detailed guidelines on manuscript length, format, style, etc.?
A. Please refer to Authors Guide for Acta Horticulturae.
Detailed instructions for oral presentation files, poster format, and presentation procedures will be announced shortly.
Check the website for updates.
Q. I want to know the guidelines for poster presentation. (size, format, style, etc.)
A. Detailed instructions for oral presentation files, poster format, and presentation procedures will be announced shortly.
Check the website for updates.
Q. How do I set up an ISHS account?
A. Please visit the following link: ISHS new membership
Q. How can I submit my manuscript to Acta Horticulturae?
A. There are 2 ways to access the ROSA system for submission;
・Via the Link in Your Email: Use the unique URL provided in your abstract acceptance email from symposiacontributions@ishs.org to access the submission page directly.
・Via Your ROSA Account: Login from Access to ROSA. After log-in, select author task of the corresponding symposium from the list, then “edit existing submission” link will be active. From this link, you can also submit the manuscript.
Refer to Acta Horticulturae Manuscript Submission
Q. Are there manuals or guidelines I should refer to before submitting my manuscript?
A. Please refer to the following resources before the submission:
・ROSA Online Submission Manual: Online Submission Authors Guide (PDF)
・Author Guidelines: ISHS Authors Guide for Acta Horticulturae including copyright
Q. Do all oral presenters need to submit a manuscript?
A. Yes. All oral presenters, including invited and keynote speakers, must submit a manuscript for publication in the Acta Horticulturae proceedings.
Please refer to the Authors Guide for Acta Horticulturae and Abstract Submission Guidelines.
Q. Do poster presenters need to submit a manuscript?
A. Presenters of posters are strongly encouraged to prepare and submit a manuscript for publication in the Acta Horticulturae proceedings.
Please refer to the Authors Guide for Acta Horticulturae.
Q. Where can I find the Acta Horticulturae author guidelines?
A. Authors Guide for Acta Horticulturae.
Q. Does submitting a manuscript to Acta Horticulturae prevent me from publishing the work in a peer-reviewed scientific journal?
A. Submission of a manuscript to Acta Horticulturae does not preclude aspects of the work that are contained in a proceedings manuscript from being published in a manuscript prepared for a peer-reviewed scientific journal. However, author(s) must be aware that some scientific journals may have restrictions on publication of material that is very similar to material that has been published in conference proceedings. Publication in Acta Horticulturae must be approved by all co-authors, if any, as well as – tacitly or explicitly – by the responsible authorities at the institution where the work was carried out.
Please refer to Authors Guide for Acta Horticulturae.
Q. I have some trouble submitting my manuscript on ROSA
A. Check out the manual here: Online Submission Authors Guide (PDF)
★Deadline: September 15, 2026
Q. When is the deadline for manuscript submission?
A. September 15, 2026
Q. Where can I find detailed guidelines on manuscript length, format, style, etc.?
A. Please refer to Authors Guide for Acta Horticulturae.
Detailed instructions for oral presentation files, poster format, and presentation procedures will be announced shortly.
Check the website for updates.
Q. I want to know the guidelines for poster presentation. (size, format, style, etc.)
A. Detailed instructions for oral presentation files, poster format, and presentation procedures will be announced shortly.
Check the website for updates.
Q. How do I set up an ISHS account?
A. Please visit the following link: ISHS new membership
Q. How can I submit my manuscript to Acta Horticulturae?
A. There are 2 ways to access the ROSA system for submission;
・Via the Link in Your Email: Use the unique URL provided in your abstract acceptance email from symposiacontributions@ishs.org to access the submission page directly.
・Via Your ROSA Account: Login from Access to ROSA. After log-in, select author task of the corresponding symposium from the list, then “edit existing submission” link will be active. From this link, you can also submit the manuscript.
Refer to Acta Horticulturae Manuscript Submission
Q. Are there manuals or guidelines I should refer to before submitting my manuscript?
A. Please refer to the following resources before the submission:
・ROSA Online Submission Manual: Online Submission Authors Guide (PDF)
・Author Guidelines: ISHS Authors Guide for Acta Horticulturae including copyright
Q. Do all oral presenters need to submit a manuscript?
A. Yes. All oral presenters, including invited and keynote speakers, must submit a manuscript for publication in the Acta Horticulturae proceedings.
Please refer to the Authors Guide for Acta Horticulturae and Abstract Submission Guidelines.
Q. Do poster presenters need to submit a manuscript?
A. Presenters of posters are strongly encouraged to prepare and submit a manuscript for publication in the Acta Horticulturae proceedings.
Please refer to the Authors Guide for Acta Horticulturae.
Q. Where can I find the Acta Horticulturae author guidelines?
A. Authors Guide for Acta Horticulturae.
Q. Does submitting a manuscript to Acta Horticulturae prevent me from publishing the work in a peer-reviewed scientific journal?
A. Submission of a manuscript to Acta Horticulturae does not preclude aspects of the work that are contained in a proceedings manuscript from being published in a manuscript prepared for a peer-reviewed scientific journal. However, author(s) must be aware that some scientific journals may have restrictions on publication of material that is very similar to material that has been published in conference proceedings. Publication in Acta Horticulturae must be approved by all co-authors, if any, as well as – tacitly or explicitly – by the responsible authorities at the institution where the work was carried out.
Please refer to Authors Guide for Acta Horticulturae.
Q. I have some trouble submitting my manuscript on ROSA
A. Check out the manual here: Online Submission Authors Guide (PDF)
Cancellation policy
Registration fees are non-refundable under any circumstances.
Please refer to the website for details: REGISTRATION
Registration fees are non-refundable under any circumstances.
Please refer to the website for details: REGISTRATION
On-site Portal
Q. What is the On-site Portal?
A. The On-site Portal provides essential information for IHC2026, including the latest program, venue maps, guides, announcements, and PDFs for printing.
Please check the On-site Portal before and during the congress for the latest information.
https://pub.confit.atlas.jp/en/event/ihc2026
Q. Where can I find the latest announcements?
A.
▪IHC2026 Official Website : https://www.ihc2026.org/
▪On-site Portal : https://pub.confit.atlas.jp/event/ihc2026
Q. What is the On-site Portal?
A. The On-site Portal provides essential information for IHC2026, including the latest program, venue maps, guides, announcements, and PDFs for printing.
Please check the On-site Portal before and during the congress for the latest information.
https://pub.confit.atlas.jp/en/event/ihc2026
Q. Where can I find the latest announcements?
A.
▪IHC2026 Official Website : https://www.ihc2026.org/
▪On-site Portal : https://pub.confit.atlas.jp/event/ihc2026
Important Notice / Official Contact
The only official email address for IHC2026 is the one provided on the “Contact” page.
The only official email address for IHC2026 is the one provided on the “Contact” page.