O.Z.Eremchenko,O.A.Chetina,
A.K.Arisova,N.D.Vanysheva

Changes of K⁺, Cа²⁺, Nа⁺ ions content in plant leaves and roots during change of soil medium reaction 

3-15

E.А.Kutihina,E.E.Kurdjukov,
I.Ja.Moiseeva,L.N.Bibjakova, N.V.Finajonova

Quantitative determination of pigments in moringa leaves 

16-23

O.M.Soboleva,E.P.Kondratenko,
A.S.Sukhikh,M.G.Kurbanova, A.Yu.Prosekov

Effect of the water deficit on very long chain fatty acids in barley seedlings leaves 

24-32

Q.V.Hoi,R.V.Doudkin,
N.T.Khoi  

The position of the genus Camellia L. (Theaceae) in some classification systems 

33-39

S.P.Gaponov,R.T.Tewelde

Epidemiological survey of birds and their mites in Voronezh 

40-56

Yu.A.Pastukhova,T.G.Stojko,
D.G.Smirnov,A.A.Flyagin,
E.A.Embulaeva

Zooplankton communities in the new and old Sura riverbeds in Penza 

57-73

O.A.Aref’eva,L.N.Ol’shanskaya,
R.Sh.Valiev

Cultivation of Chlorella sorokiniana in natural open air conditions of the Volga region and in a laboratory experiment under the effect of a constant magnetic field 

74-86

А.Yu.Asanov 

Thе effectiveness of preventing thе “blooming” of thе Surskoye (Penza) reservoir, depending on the size of the silver carp (Hypophthalmichthys) used for stocking 

87-97