Authors
Irina Sivicka
Faculty of Agriculture, Latvia University of Life Sciences and Technologies, Latvia
Aleksandrs Adamovičs
Faculty of Agriculture, Latvia University of Life Sciences and Technologies, Latvia
Olga Sokolova
Institute of Horticulture, Latvia
Gunārs Lācis
Institute of Horticulture, Latvia
Baiba Krivmane
Latvian State Forest Research Institute “Silava”, Latvia