Articles
PHENOTYPE VALUES, VARIABILITY AND PRODUCTIVE PROPERTIES IN DUTCH POTATO VARIETIES UNDER DIFFERENT AGRO-ECOLOGICAL CONDITIONS
Article number
462_147
Pages
921 – 928
Language
Abstract
The study was conducted on productive tuber properties (yield, tuber size, average tuber mass and tuber number per plant) in 13 Dutch potato varieties.
The method of field experiments was used in the environmental conditions of Kaona and mountain Golija (600m and 1600m above sea level, respectively) in 1993 – 1994. The following early and medium-early potato varieties were tested: Arinda, Binella, Cosmos, Frisia, Impala and Latona.
Medium-late potato varieties such as Asterix, Kondor, Marfona, Symfonia, Van Gogh and Desiree were also used.
It was concluded that there were very significant differences in the genetic bases among the potato varieties studied compared to the very significant MS values which were obtained at all the productive tuber properties.
The variability of phenotype values in the studied properties was largely affected by locality (L) and the year of study (Y). Very significant differences (P< 0.01) for interaction effects were found at all tuber properties (G x L, G x Y, G x L x Y). Medium values of potato properties were tested using lsd test and their ranker order was determined.
The best results regarding tuber yields were obtained with mid – early varieties, i.e.
Impala, Cosmos and Latona, whereas Kondor, Marfona and Van Gogh showed the best results among medium – late varieties.
The greatest number of large tubers and the largest average tuber mass were obtained with medium – late variety Kondor and medium – early varieties Cosmos and Latona.
The varieties forming a small number of tubers (Kondor) proved to have ‘more plastic’ genotype, as well as more stable yields when compared to the varieties which produced a large tuber number (Asterix). This is particularly important for medium – late varieties which are characterized by high genetic yielding potential.
The method of field experiments was used in the environmental conditions of Kaona and mountain Golija (600m and 1600m above sea level, respectively) in 1993 – 1994. The following early and medium-early potato varieties were tested: Arinda, Binella, Cosmos, Frisia, Impala and Latona.
Medium-late potato varieties such as Asterix, Kondor, Marfona, Symfonia, Van Gogh and Desiree were also used.
It was concluded that there were very significant differences in the genetic bases among the potato varieties studied compared to the very significant MS values which were obtained at all the productive tuber properties.
The variability of phenotype values in the studied properties was largely affected by locality (L) and the year of study (Y). Very significant differences (P< 0.01) for interaction effects were found at all tuber properties (G x L, G x Y, G x L x Y). Medium values of potato properties were tested using lsd test and their ranker order was determined.
The best results regarding tuber yields were obtained with mid – early varieties, i.e.
Impala, Cosmos and Latona, whereas Kondor, Marfona and Van Gogh showed the best results among medium – late varieties.
The greatest number of large tubers and the largest average tuber mass were obtained with medium – late variety Kondor and medium – early varieties Cosmos and Latona.
The varieties forming a small number of tubers (Kondor) proved to have ‘more plastic’ genotype, as well as more stable yields when compared to the varieties which produced a large tuber number (Asterix). This is particularly important for medium – late varieties which are characterized by high genetic yielding potential.
Publication
Authors
Z. Bugarcic, Z. Vasiljeic, S. Šušic, A. Ðokic
Keywords
yield, locality, tuber size, early, medium late varieties
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