FRUITCULTURE

Academic Year 2026/2027 - Teacher: MARIO DI GUARDO

Expected Learning Outcomes

The course is aimed at elucidating the main aspectes related to tree crops. For each crops, the botanical characterisation, the choice of the scion and rootstock, and the agronomical management of the orchard will be discussed to provide a chomprensive overview toward the obtainement of high quality and sustainable productions. 

At the end of the course, the student will be able to tackle the principal choices related to the set-up and the menagement of a productive orchard. In line with the Dublin Descriptors, at the end of the course the student will have acquired:

1. Knowledge and understanding. Knowledge of the botanical taxonomy, floral and fruiting biology, and ecophysiological requirements of the main temperate and subtropical fruit species. Understanding of the criteria underpinning cultivar and rootstock classification, the objectives of breeding programmes, and the technical basis of orchard management practices (training and pruning systems, planting density, soil management, fertilisation, irrigation, thinning, harvest and post-harvest).

2. Applying knowledge and understanding. Ability to apply the acquired knowledge to the design and management of a productive orchard: selecting species, cultivar and rootstock combinations appropriate to a given pedoclimatic context, defining the planting layout and training system, and scheduling the main cultural operations across the fruiting cycle. Ability to interpret maturity indices in order to define the harvest date.

3. Making judgements. Ability to critically evaluate alternative technical options and to justify the choices made, weighing agronomic, qualitative, economic and environmental sustainability criteria. Ability to identify the limiting factors of a given production system and to assess, on the basis of technical and scientific sources (including descriptor lists and specialised literature), the most suitable corrective strategies.

4. Communication skills. Ability to present and discuss the topics of the course with appropriate technical and scientific terminology, addressing both specialist and non-specialist audiences (growers, technicians, nursery operators, supply-chain actors), and to support arguments with pertinent references and data.

5. Learning skills. Ability to independently update knowledge by consulting scientific literature, technical documentation, germplasm descriptor lists and sector databases, thereby acquiring the methodological autonomy required for further study, for research activity and for professional practice in the fruit-growing sector.

Course Structure

The course consists of 28 hours of lectures and 28 hours of practical activities (focus on specific topics related to the object of the course and/or technical visit). 

In compliance with current regulations, students can request a meeting to arrange different strategies based on specific needs. students can refer also to prof. Anna De Angelis (contact person for CInAP, center for inclusivity and disability services).

If the course is delivered in blended or remote mode, appropriate adjustments may be made to the above, in order to ensure consistency with the syllabus

Required Prerequisites

To better understand the topics of the course it is important to have some prior knowledge of the physiology and morphology of tree crops

Attendance of Lessons

Attending the classes is not mandatory, but strongly recommended, as it facilities the learning process and contributes to the achievement of the learning objectives.

Detailed Course Content

FIRST SECTION.

Introduction to the course: importance of fruit arboriculture in the world and in Italy.

Recalls of General Arboriculture: cultivar, clone, clonal selection. Hybridization, mutagenesis. Quality and fruit production.

Nursery and genetic certification. Fruiting cycle and fruit ripening. Classification criteria of fruit trees.

SECOND SECTION.

Monographic treatment of the following species:

- pomaceae (apple and pear)

- stone fruit (apricot, cherry, peach, plum)

- nuts (almond, hazelnut, chestnut, pistachio, walnut)

- actinidia

- subtropical fruit trees (avocado, cherimoya, mango)

Monographic treatment of the above species will be carried out according to the following outline: origin and botanical taxonomy; distribution in Italy and the world; floral and fruiting biology; cultivar classification criteria, goals of genetic improvement; environmental needs and vocation; propagation and rootstocks. Training forms and pruning. Planting distances. Soil tillage, fertilization, water requirements and irrigation. Thinning. Maturity indexes and harvesting. Hints on post-harvest issues.

THIRD SECTION.

Hints of: citriculture, oliveiculture and viticulture.

Hints of wood arboriculture: peculiarities of silviculture and wood arboriculture; botanical species of major interest; technological characters of wood and influence of cultivation practices; environmental needs and vocation.

Hints of ornamental arboriculture: purposes and characteristics, main botanical species.

Textbook Information

Text_1: The Most Important Fruit Crops in the Mediterranean Basin - Position Paper. Editors: Daniele Bassi, Marco Cirilli and Laura Bellini. Milano University press. ISBN 979-12-5510-109-3

Text_2: The Encyclopedia of Fruit & Nuts. Jules Janick and Robert E. Paull. CABI, ISBN 0-85199-638-8

Text_3: The fruit woody species (Descrpitor list). ARSIA • Agenzia Regionale per lo Sviluppo e l’Innovazione nel settore Agricolo-forestale. ISBN 88-8295-084-0

Text 4: Concepts for Understanding Fruit Trees. T.M. DeJong. CABI, ISBN-13: 9781800620865

Text_5:  Learning material provided by the teacher

Course Planning

 SubjectsText References
1Importance of fruit arboriculture in the world and in ItalyText 4, Text 5
2Recalls of General ArboricultureText 4 and Text 5
3Nursery and genetic certification. Text 4 and Text 5
4Fruiting cycle and fruit ripeningText 4 and Text 5
5Classification criteria of fruit trees.Text 3 and Text 5
6Pomaceae (apple and pear)Text 2, Text 3, Text 5 and Text 6
7Stone fruits (peach, apricot, cherry, plum)Text 1, Text 2, Text 3, Text 5 and Text 6
8Nuts (almond, hazelnut, chestnut, pistachio, walnut)Text 1, Text 2, Text 3, Text 5 and Text 6
9ActinidiaText 2, Text 3, Text 5 and Text 6
10subtropical fruit trees (avocado, cherimoya, mango)Text 2 and Text 5
11Hints of: citricultureText 1, Text 2, Text 3 and Text 5
12Hints of oliveicultureText 1, Text 2, Text 3 and Text 5
13Hints of viticultureText 1, Text 2, Text 3 and Text 5
14Hints of wood arboriculture and ornamental arboricoltureText 5

Learning Assessment

Learning Assessment Procedures

The evaluation will be carried out through an oral exam at the end of the course. For both exams, the evaluation will be based on the knowledges on the specific topics of the course developed by the student. The ability of presenting the topics with adequate language properties. 


The marks reflect the student preparation as outlined below:

<18

knowledge and comprehension of the topic: significan lacks in comprehension 

Analysis skills: Not adequate with frequent generalisations 

Proper use of references: Not appropriate

18-20

knowledge and comprehension of the topic: barely sufficient

Analysis skills: barely sufficient

Proper use of references: barely sufficient

21-23

knowledge and comprehension of the topic: Fairly satisfactory

Analysis skills: able to perform correct analysis 

Proper use of references: use of standard reference 

24-26

knowledge and comprehension of the topic: satisfactory

Analysis skills: good analysis skills, topics are presented with coherence 

Proper use of references: use of standard reference 

27-29

knowledge and comprehension of the topic: good

Analysis skills: remarkable analysis skills

Proper use of references: remarkable use of references

30-30L

knowledge and comprehension of the topic: Excelent 

Analysis skills: excelent analysis skills

Proper use of references: excelent use of references


Learning assessment may also be carried out on-line, should the conditions require it.

To ensure equal opportunities and in compliance with current laws, students may request a personal interview in order to plan any compensatory and/or dispensatory measures based on educational objectives and specific needs. Students can also contact the CInAP (Centro per l’integrazione Attiva e Partecipata — Servizi per le Disabilità e/o DSA) through the referring professor within the department, (https://www.cinap.unict.it/content/referenti).

Examples of frequently asked questions and / or exercises

1. Agronomic aspects related to a species included in the program

2. Varietal panorama of one of the species included in the program

3. Methods of propagation and rootstocks f one of the species included in the program