The sedges (family Cyperaceae) are an economically and ecologically important monocot group dating back at least to the Paleocene. While modern genera are mostly unknown before the Oligocene, several extinct taxa are recognized as the earliest sedges. Their affinities have been unclear until now, because they are found as isolated, often abraded fruits or endocarps. Exceptionally preserved sedg...

PREMISE OF THE STUDY Microsatellite markers were developed for the rare sedge Lepidosperma bungalbin (Cyperaceae) to assess genetic variation and its spatial structuring. METHODS AND RESULTS We conducted shotgun sequencing on an Illumina MiSeq and produced 6,215,872 sequence reads. The QDD pipeline was used to design 60 primer pairs that were screened using PCR. We developed 17 loci, of which...

Smallflower umbrella sedge is an increasingly problematic weed in direct-seeded rice in Arkansas. Recently, a sample collected from an Arkansas rice field was confirmed resistant to halosulfuron (Permit). Studies were conducted to determine the effectiveness of various acetolactate synthase (ALS)-inhibiting herbicides on control of the resistant biotype relative to a susceptible biotype and to ...

Generating graphs that are similar to real ones is an open problem, while the similarity notion is quite elusive and hard to formalize. In this paper, we focus on sparse digraphs and propose SDG, an algorithm that aims at generating graphs similar to real ones. Since real graphs are evolving and this evolution is important to study in order to understand the underlying dynamical system, we tack...

In order to determine factors which may affect the differential seed germination of six members of the Cyperaceae which occur together in newly revegetated sedge meadow, seeds were tested for germinability at three storage conditions. Seeds were also germinated at two alternating temperature regimes, 21/25° and 25/32°C. Germination of dry stored Carex hystericina and C. vulpinoidea was greater ...

This paper presents the results of a study hemipteran assemblages in aquatic and semiaquatic biotopes Meshchera National Park. The insect fauna, which includes 80 species 21 families, eurytopic species, polyphytophages, broad oligophytophages, inhabiting with an herbaceous cover wide range humidity. fauna is mainly represented by Trans-Palearctic, Superatlantic Holarctic species. greatest fauni...

As an object of research, the technological process cutting roots stalks pine tree with soil and placing them on side together spherical disk in combined aggregate implementation was accepted. In our republic's cotton cultivation field, world's latest innovations, including minimal, resource-saving, Strip-till, No-till technologies drip irrigation methods, are gradually being introduced. Combin...