Specific Weight of New Apple Varieties

Spezifisches Gewicht neuer Apfelsorten, I. Höller, W. Guerra, K. Gummerer

At the Laimburg Research Centre, the specific weight of 121 apple varieties from the own variety collection was measured with a hydrostatic method (Archimedes principle) from 2007 to 2013. For this purpose, samples of 10 apples per cultivar were collected mainly from the sites of Laimburg (22m asl) and Laces (700 m asl) and were examined annually at the same period with uniform fruits of equal size. The cultivars could be classified in specific weight classes from 0.75 to 0.91 g/cm3. 75% of the varieties were assigned to the middle classes since they had specific weights ranging from 0.80 to 0.86 g/cm3. ‘Golden Delicious’ was included within the specific “very light” varieties, while ‘Braeburn’, ‘Nicoter Kanzi®’ and ‘Scifresh Jazz®’ were classified as “very heavy” varieties. The year and location do not significantly influence the specific weight, since this parameter depends rather on genetically caused factors, such as the intercellular volume and the dry matter content of the fruit. The specific gravity can be an interesting complementary information to describe an apple variety.

Keywords: Specific weight, Hydrostatic method, Apple Varieties.

Publications

May 2017, Erwerbs-Obstbau. Volume 59 Number 2

Spezifisches Gewicht neuer Apfelsorten, I. Höller, W. Guerra, K. Gummerer Published: 01-05-2017

Details

Activity type

Publication in technical journal

Activity work package

Performance of new fruit varieties

Activity number

Laimburg-WP2-A76

Activity contact

For more Information on the article, please contact

Dr. Walter Guerra
Laimburg Research Centre
Laimburg 6 - Pfatten
I-39040 Post Auer (BZ), Italy
[email protected]

Activity partner

Laimburg

Activity country

Italy

Last edit

18-10-2017