Productive potential and nutritional value of meadow clover varieties in the Kamchatka Territory. M.B. KOCHNEVA
Keywords:
meadow clover, varieties, productivity, crude protein, feed quality, exchange energyAbstract
Productive potential and nutritional value of meadow clover varieties in the Kamchatka Territory. M.B. KOCHNEVA (Kamchatka Agricultural Research Institute, Kamchatka territory, Yelizovsky District, Sosnovka village).
The results of a comprehensive assessment of 13 varieties of meadow clover on the yield of green mass, dry matter, protein content, and energy value of feed in the Kamchatka Research Institute of Agriculture for 2014–2018 are
presented. The object of research is early and late maturing varieties of meadow clover: Kudesnik, Martum, Kirovsky
159, Vityaz, Orpheus, SibNIIK-10, Atlant, Ogonek, Smolensky 29, Delets, Hephaestus, Svetlyachok, Komandor. On
average, for the five years of using the grass stand, the highest yield of green mass was distinguished by varieties
of early-maturing clover: Martum (61.8 t/ha), Kudesnik (55.5 t/ha), late-maturing: Delets (62.3 t/ha), Svetlyachok
(60.4 t/ha), Vityaz (57.8 t/ha), Orpheus 57.0 t/ha). Early-maturing varieties were selected for collecting dry matter:
Martum (11.1 t/ha), Komandor (10.4 t/ha), late-maturing varieties: Svetlyachok (12.9 t/ha), Hephaestus (11.1 t/ha),
Vityaz (10.7 t/ha), Kirovsky 159 (10.4 t/ha). The energy assessment showed that all the studied varieties had a high yield
of exchange energy of 10.28–10.71 mJ, the maximum – for the Smolensky 29 variety (11.04 mJ). Indicators of crude
protein content in late-maturing clovers (18.6–24.5 %) exceeded the values of early-maturing varieties (14.2–16.5 %).
In 1 kilogram of dry weight of early-maturing two-cornered varieties, 0.71–0.82 forage units were contained, in latematuring single-cornered varieties, 0.68–0.77 forage units. The highest content of digestible protein in 1 kg of dry
matter differed varieties of late-maturing clover: Svetlyachok (243 k. units), Hephaestus (235 k. units), Kirovsky 159
(212 k. units), Delets (206 k. units), from early-maturing two-cornered varieties: SibNIIK-10 (158 k. units), Komandor(149 k. units), Martum (147 k. units). According to the results of a comprehensive assessment, promising early-maturing
two-cornered varieties were identified: Martum, Komandor, SibNIIK-10 and late-maturing single-cornered varieties:
Svetlyachok, Hephaestus, Delets, Kirovsky 159, Vityaz.
