Projects / Programmes
| Code |
Science |
Field |
Subfield |
| 4.03.00 |
Biotechnical sciences |
Plant production |
|
| Code |
Science |
Field |
| B006 |
Biomedical sciences |
Agronomics |
| B390 |
Biomedical sciences |
Phytotechny, horticulture, crop protection, phytopathology |
Apple scab resistance, apple cultivars, organic farming, fruit thinning
Researchers (3)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
17045 |
Boštjan Godec |
Plant production |
Researcher |
2003 - 2005 |
0 |
| 2. |
05663 |
PhD Darinka Koron |
Plant production |
Researcher |
2003 - 2005 |
0 |
| 3. |
08746 |
PhD Matej Stopar |
Plant production |
Head |
2003 - 2005 |
0 |
Organisations (1)
Abstract
The aim of the research proposal is to solve two key problems of the organic apple production. First, to find the appropriate apple cultivars which were resistant against two most important apple diseases, apple scab and powdery mildew. A total of 37 less or more resistant apple cultivars will be planted to estimate the degree of resistance aganist scab and mildew in the Slovenian ecological conditions. All planted cultivars will be observed through the pomological criteria, i.e. fruit quality and growth habit of trees. The resistance of planted cultivars will be estimated in two ways: half of the trees will be free of any spraying against diseases and half of them will be sprayed according to organic farming procedure. The fruit quality will be measured and tested just after the harvest and after the end of storage in cool-room.
The second major problem of the organic apple production is fruit thinning. Since the fruit quality and regular flowering depend mainly on the success of chemical fruit thinning, this measure is necessary in any economic apple production, commercial and organic. As none of the commercially known fruit thinning agents is allowed in the organic farming, a substitute should be found to enhance the economy of organic apple production. Some preliminary experiments in the world showed that potasium salts of fatty acids, lime sulfur and some mineral oils accelerate apple fruitlet abscission. The sprays mentioned above are the agents allowed and used in organic farming against pest and diseases. We expect that an appropriate dose and application time of these agents would thin to the extent applicable to spray in organic apple production. In addition, we will try to thin with diluted acetic acid, some plant oils and with a low concentration of kitchen salt, i.e. the compounds possible to be used in the organic farming. Standard procedure for fruit thining experiments will be used to asses the initial and final crop load and fruit quality. All the thinning experiments and fruit variety testings will be set with a statistical design in the fields at the enterprise Sadjarstvo Mirosan and at the experimental orchard in Brdo.
