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Bulgarian Journal of Crop Science   ISSN 0568-465X
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Productivity and stability of non-traditional forage species in the conditions of Central Northern Bulgaria
Valentin Kosev, Natalia Georgieva, Ina Stoycheva
Abstract: In this article, an initial assessment of non-traditional species (Trigonella foenum-graecum, Lablab purpureus, Carthamus tinctorius and Phalaris canariensis) in the conditions of Central Northern Bulgaria is made. The method of long plots is used, in 3-fold replication of variants. The plants are grown in organic production conditions, without the use of fertilizers and pesticides. It was found that the studied species demonstrated a high productive potential in terms of formed green and dry biomass as follows: C. tinctorius (30.9 t GM/ha, 6971.7 kg DM/ha), L. purpureus (25 t GM/ha, 4484.6 kg DM/ha), Ph. canariensis (16 t GM/ha, 2797.3 kg DM/ha) and Tr. foenum-graecum (10.7 t GM/ha, 2339.8 kg DM/ha). In terms of grain productivity, it is characterized by the highest yield Tr. foenum-graecum (2276.3 kg/ha), and with the lowest – Ph. canariensis (284.4 kg/ha). The rank analysis of the parameters of ecological stability (CVi, bi, Wi2, σ2, YSi) of dry mass and seed yield favor C. tinctorius and L. purpureus, respectively, which is also confirmed by the performed GGE biplot analysis of the data. Additional research is needed to establish in animal experiments the palatability and digestibility of the studied species, as well as their recommended percentage participation in feed rations.
Keywords: evaluation; productivity; stability; unconventional species
Citation: Kosev, V., Georgieva, N., & Stoycheva, I. (2025). Productivity and stability of non-traditional forage species in the conditions of Central Northern Bulgaria. Bulgarian Journal of Crop Science, 62(3)…(Bg).
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DOI: https://doi.org/10.61308/IDGM4572
Date published: 2025-06-27
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