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Fruit Tree Production and Utilization Lab
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The lab explores fruit tree growth and the mechanisms of fruit development from a physiological perspective.

AboutAbout the lab
Exploring fruit tree physiology from the environment to molecules
The Fruit Tree Production and Utilization Lab studies fruit tree growth and fruit development in terms of the cultivation environment and the functions inside the plant.
Targeting deciduous and tropical fruit trees, the lab uses biochemical and molecular biological methods to investigate the mechanisms of various physiological phenomena.
The lab also pursues research on specific fruits, such as joint training of Japanese pear and the aroma of grapes.
In the faculty lists of the college and the graduate school, the lab is introduced as the research field "Fruit Tree Production and Utilization."
Key terms
- Joint training
- A cultivation method for pear and other fruit trees in which neighboring trees are connected by grafting.
- Flowering induction
- The process by which a plant moves to the stage of producing flowers.
- Anthocyanin
- The pigment responsible for the red or purple color of fruits such as grapes.
ResearchResearch themes
The lab studies environmental control and cultivation physiology of fruit trees, flowering induction, and the storage physiology of fruit. Targeting deciduous and tropical fruit trees, it aims to clarify the mechanisms of these phenomena using biochemical and molecular biological methods.
*Illustrative imageCultivation environment and fruit tree physiology
The lab studies environmental control and cultivation physiology of fruit trees. It also examines how joint training, in which neighboring trees are connected by grafting, affects tree vigor and fruit quality in Japanese pear.
*Illustrative imageFlowering induction and fruit storage physiology
The lab studies flowering induction in fruit trees and the storage physiology of fruit. It also works on bud dormancy and on the relationship between plant hormones and the accumulation of sugars and anthocyanins as fruit ripens.
*Illustrative imagePropagation and phylogenetic differentiation of fruit trees
The lab also conducts research on the propagation and phylogenetic differentiation of fruit trees.
*Illustrative imageAroma of grape fruit
The lab investigates the aroma characteristics of table grapes and the volatile compounds that underlie them. For Shine Muscat, it also examines how the leaf-to-fruit ratio affects aroma compounds.
MembersFaculty
- ProfessorSumiko Sugaya
- Assistant ProfessorYoshihiko Sekozawa
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Fruitboomgaard in Zetten, in de streek de Over-Betuwe” Cultureel Gelderland / CC0 (cropped)
- Cultivation environment and fruit tree physiology: “Tree of 40 Fruit at Syracuse University” Lange.lea / CC BY-SA 4.0 (cropped)
- Flowering induction and fruit storage physiology: “Old Fruit Tree in Bloom” GabrielleMerk / CC BY-SA 4.0 (cropped)
- Propagation and phylogenetic differentiation of fruit trees: “Cove , Cove Garden Nursery - Fruit Trees - geograph.org.uk - 2827953” Lewis Clarke / CC BY-SA 2.0 (cropped)
- Aroma of grape fruit: “Shine muscat grapes” Scudsvlad / CC BY-SA 4.0 (cropped)
- Related lab (Plant Environmental Biochemistry Lab): “ISS-64 Radish plants in the Plant Habitat-02 experiment (2)” NASA / Public domain (cropped)
- Related lab (Vegetable and Floriculture Lab): “Plant tissue culture of Violces” 22Kartika / CC BY-SA 3.0 (cropped)
- Related lab (Animal Resource Production Lab): “Desa Cattle Dairy Farm, Kundasang 28 December 2023 06” Pangalau / CC BY-SA 4.0 (cropped)
- Related lab (Bioprocess Engineering Lab): “Penicillin bioreactor” Matt Brown / CC BY 2.0 (cropped)
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