00714naa#a2200181#i#450# EN\\bibl\103576 20260220111547.5 2500-1825 20251128b2025####ek#y0engy0150####ca RU USING HYBRID SUNFLOWER VARIETIES AS A WAY TO IMPROVE THE RESOURCE BASE FOR THEIR PRODUCTION (BASED ON THE SARATOV REGION MATERIALS) Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2025 6 с. Journal article local Экономика. Народное хозяйство. Экономические науки. 33 Ukolova Nadezhda Viktorovna Matyashev Oleg Nikolaevich sej.kgau.ru