Branching in plants increases plant access to light and provides pathways for regrowth following damage or loss of the apical meristem. We conducted two experiments in an eastern Kansas tallgrass prairie to determine how apical meristem loss (by clipping), apical meristem damage (by insect galling), and increased light availability affected growth, reproduction, and branching in Silphium integr...

Kentucky bluegrass (Poa pratensis L.) is a major cool-season turfgrass requiring frequent mowing. Utilization of cultivars with slow growth is a promising method to decrease mowing frequency. In this study, two dwarf mutant selections of Kentucky bluegrass (A12 and A16) induced by space mutation were analyzed for the differentially expressed genes compared with the wild type (WT) by the high-th...

The primary goals of this project are to discover management processes which benefit a restored prairie and reduce the need for prescribed burning. Moreover, because of the interdependence of the plants and soil, there is a strong focus on the soil community as a driving force of the vegetation. Consequently, our objectives were to assess the effects of manipulation (burning, mowing) on: (1) th...

Given a polygon and a visibility range, the Myopic Watchman Problem with Discrete Vision (MWPDV) asks for a closed path P and a set of scan points S , such that (i) every point of the polygon is within visibility range of a scan point; and (ii) path length plus weighted sum of scan number along the tour is minimized. Alternatively, the bicriteria problem (ii’) aims at minimizing both scan numbe...

Perennial ryegrass is one of the most commonly cultivated forage species in Europe, where grazing and mowing (cutting) are used to manage this resource. Cutting can be characterized by its intensity (height) and its frequency. Combinations of these two factors affect mono-species grasslands productivity and could also modify the genotypic composition of heterogeneous populations. Indeed, the hi...

The aim of the article is to define hyssop ( Hyssopus officinalis ) ‘Markiz’ cultivar capacity parameters aimed at recultivating degraded soils, alkali sloping lands, local landscaping technologically polluted areas, which will promote improvement anthropogenically transformed ecosystems. To implement such practical measures comprehensive approach should be used while selecting agronomic for gr...

Clothoids are very useful for smoothing the motion of a mobile robot mowing along a trajectory. This paper addresses the problem of smoothing the mobile robot motions when cusps, i e . , changes of motion direction along the trajectory, are imposed. We pinpoint some special curves (that we call uanticlothoids”) and we discuss how they can be used together with clothoids in order to smooth a pre...