Kalle Hoppula

Chemical composition of ripe fruits of Rubus chamaemorus L. grown in different habitats.

M. Jaakkola, Ville Korpelainen, Kalle Hoppula, 2012, Journal of the science of food and agriculture.

Tensiometer-based irrigation scheduling in perennial strawberry cultivation

Kalle Hoppula, T. Salo, Kalle I. Hoppula, 2007, Irrigation Science.

Influence of fertilization, mulch color, early forcing, fruit order, planting date, shading, growing Environment, and genotype on the contents of selected phenolics in strawberry (Fragaria x ananassa Duch.) fruits.

R. Karjalainen, Kalle Hoppula, M. Anttonen, 2006, Journal of agricultural and food chemistry.