Pchelintseva N. V. RussiaSaratovSaratov State University, 410012, Saratov, Astrakhanskaya, 83 v.v.korobko@mail.ru, pchelinzevanv555@mail.ru Author's articles Biotesting polysubstituted perchlorates halkogen(thio)pyrilium Effect of perchlorates halkogen(thio)pyrilium on morphogenesis and pigment composition of the first leaves of wheat seedlings Effect of N, O, S-contaning heterocyclic compounds on morphogenesis and pigment composition of the first leaves of wheat seedlings Влияние (тио)семикарбазонов 2,4-диарилбицикло[3.3.1]нон2-ен-9-онов на рост проростков Triticum aestivum L. Effect of preplanting cultivation by (thio) semicarbazones 2,4-diarylbicyclo [3.3.1] non-2-en-9-ones on growth of Triticum aestivum L.