Abstract
The recommendation of cultivars for a larger number of locations relies on similar agricultural environment or similar crop yield obtained in these locations. There are many studies on the impact of environmental conditions on the yield of cultivars of agricultural crops and recommendation for their cultivation. However, there is little research on triticale in comparison to other cereals. We presented the influence of the cultivar, location nested in region, year, and their interactions on triticale grain yield separately for two levels of crop management intensity. In this work, we checked compatibility in the rankings of cultivars between six regions and compatibility in the rankings of cultivars between locations belonging to the same region. The results indicated a large variation in the rankings of cultivars between locations in the regions, i.e., the ranking of cultivars in locations belonging to the same region was different. We observed low compatibility in rankings between locations for both crop management intensities. The low compatibility of cultivar rankings in trial locations also translates into low precision when determining regions. This means that the process of recommending cultivars to environments should be constantly checked and improved. In addition, using GGE biplot and measure of yield superiority (Pi) we presented an adaptive response of 12 cultivars in six regions at two levels of crop management intensity and their stability during five growing seasons.
Highlights
Triticale (Triticosecale Wittmack) is a hybrid crop obtained by crossing wheat (Triticum ssp.) and rye (Secale cereale L.)
That indicated a significant difference in mean grain yields between the six regions
Correct and effective recommendation on triticale cultivars for farmers must be adapted to the region of their fields
Summary
Triticale (Triticosecale Wittmack) is a hybrid crop obtained by crossing wheat (Triticum ssp.) and rye (Secale cereale L.). The quality of triticale grain, and its use, is much better than in case of rye. Triticale is cultivated on a global scale with the main production areas in Central and Eastern Europe, where the largest producers are Poland, Germany, France, Belarus, and Russia [1]. Triticale is characterized by high yielding potential, good quality of grain for making food products for people and livestock, and robustness to biotic and abiotic stress [2,3]. Triticale is a plant which biomass can potentially be used in bioethanol production [4]. These advantages make triticale a competitive species in comparison to other cereals
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