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A. avenae, A. parietinus,
Ch.propinquus, Ch. sclerovaginatus, P.rigidus, P. subelongatus.
The main faunal complex nematodes rhizosphere
soils constitute
P. rigidus, A. avenae, Ch. propinquus, Ch.
sclerovaginatus, A.parietinus, P.subelongatus, Rh. brevispina,
D. dipsaci, A. nanus, A. buetschlii, A. labiatus, C. persegnis, P.
pratensis, B. dubius, T. brassicae, Eudorylaimus centrocercus,
A. composticola, Helicotylenchus dihystera etc. (all 30 spe-
cies). The first 4 species belong to the mass species, among
which the largest biomass form
P. rigidus individuals that
make up a third of the species found in the soil.
For the root of soil fauna is abundant species of the
families Panagrolaimimidae, Cephalobidae and Aph-
elenchidae, in particular species
P. rigidus, Ch. propin‑
quus. Relatively often met A. avenae, Ch. sclerovaginatus,
P. subelongatus and A. parietinus. By frequently encoun-
tered species belong to the types of families Rhabditidae
(Rh. Brevispina), Anguinidae (D. dipsaci), Cephalobidae
(A. nanus, A. buetschlii, C. persegnis), Dolichodoridae
(T. brassicae, B. dubius), Pratylenchidae (P. pratensis),
Aphelenchoididae
(A. composticola). Less frequent met
types
Tylenchorhynchus tener (Dolichodoridae family),
A. labitus (Cephalobidae family), Panagrolaimus fuchsi
(Panagrolaimidae family),
Helicotylenchus dihystera,
(Hoplolaimidae family),
E. centrocercus (Qudsianema-
tidae family),
Eucephalobus oxyuroides, E. mucronatus
(Cephalobidae family),
Filenchus filiformis, Lelenchus
discrepans (Tylenchidae family), Helicotylenchus pseudo‑
robustus (Hoplolaimidae family), Pratylenchus neglectus,
P. penetrans, Pratylenchoides crenicauda (Pratylenchidae
family),
Ditylenchus triformis (Anguinidae family). From
the above mentioned phytonematodes the first group
of 6 species belong to the mass species and is the main
background fauna nematodes rhizosphere soil of wheat.
Among them, the highest frequency of occurrence of
stands
P. rigidus. The second group of phytonematodes
of 9 species are dominants, the third group of phytone-
matodes 14 species — to subdominants, to recedents
are 30 species; in particular,
Mesodorylaimus bastiani,
Eudorylaimus paraobtusicaudatus, Monhystera simplex,
Acrobeloides emarqinatus, Chiloplacus lentus, Panagrolai‑
mus longicaudatus, P. multidentatus, Xylorhabditis operosa,
Pelodera strongiloides, Aphelenchus cylindricaudatus, Ty‑
lenchus davainei, Psilenchus hilarulus and others.
The root system of wheat was found 7103 species
nematodes, relating to 113 species. The root system of
massive species are also absent. Often found
A. avenae,
A. parietinus, B. dubius, P. pratensis, A. composticola, Heli‑
cotylenchus dihystera, Ditylenchus triformis, Acrobeloides
buetschlii, A. nanus, Ch. propinquus, Ch. sclerovaginatus, P.
subelongatus, Rh. brevispina, Panagrolaimus multidentatus,
P. mycophilus, C. persegnis, Filenchus valkanovi and others.
The species composition is dominated Aphelenchoidi-
dae family (28 species), Cephalobidae (22 species) and
Panagrolaimidae (13 species).
In the wheat stalks have been identified 27 species in
the amount of 1157 individuals. Mass types in the stems
of wheat are also absent. Constantly we met in stems
P.
rigidus, A. avenae. The faunal complex of the stem can in-
clude other 10 species:
P. subelongatus, A. parietinus, Pan‑
agrolaimus mycophilus, P. multidentatus, Ch. propinquus,
Ch. sclerovaginatus, C. persegnis, Eucephalobus oxyroides,
D. dipsaci, A.composticola. All other species are rare and
not included to faunal complex.
On the leaves of 21 species were discovered 1491 in-
dividual nematodes. Here as well as in roots and stems,
abundant species are absent. To constantly meet species
on the leaves are
A. avenae, P. rigidus, P. multidentatus.
To the faunal complex nematodes leaves you can include
other 10 species:
C. persegnis, E. oxyroides, Ch. propin‑
quus, Ch.sclerovaginatus, P.anagrolaimus mycophilus, P.
subelongatus, A. parietinus, A. composticola, Filenchus val‑
kanovi, D. dipsaci. The remaining 8 species are rare and
are not included in the complex.
Thus, as a result of studies on the wheat we registered
13 species of phytonematodes belonging to the orders
Dorylaimida and Tylenchida, families Xiphinemidae
(1), Dolicholoridae (4), Hoplolaimidae (3), Pratylen-
chidae (4), Anguinidae (1). Nematodes of this group
registered in the plant tissues. Phytoparasites are species
of Xiphinema, Tylenchorhynchus, Bitylenchus, Merlini-
us, Helicotylenchus, Pratylenchus, Pratylenchoides, Dit-
ylenchus genera. From the plant-parasitic nematodes in
wheat and its rhizosphere were revealed the following
Section 1. Biology
8
species:
Xiphinema. index, Tylenchorhynchus brassicae,
T. tener, Bitylenchus dubius, Merlinius bogdanovi‑katjkovi,
Helicotylenchus dihystera, H. erythrinae, H. pseudorobustus,
Pratylenchus pratensis, P. neglectus, P. penetrans, Pratylen‑
choides crenicauda, and Ditylenchus dipsaci.
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