Dehydrogenase and catalase activities were measured in a Eutric Histosol irrigated with municipal wastewaters (Lublin, Poland) purified by a two-step (mechanical and biological) treatment. Soil enzyme activity was used to test the biochemical status of the soil-plant system, the last step of wastewater purification. Three experimental fields, each of 1 ha area, were planted with Populus nigra, ...

Fall season fertilization is a widely recommended practice for turfgrass. Fertilizer applied in the fall, however, may be subject to substantial leaching losses. A field study was conducted in Connecticut to determine the timing effects of fall fertilization on nitrate N (NO3-N) leaching, turf color, shoot density, and root mass of a 90% Kentucky bluegrass (Poa pratensis L.), 10% creeping red f...

To test the hypothesis that the cytochrome pathway is not invariably saturated when the alternative pathway is engaged, we titrated root respiration of several species with KCN (an inhibitor of the cytochrome pathway), both in the absence and presence of an inhibitor of the alternative pathway (salicylhydroxamic acid, SHAM). The slopes of the resultant KCN [rho] plots ([rho]cyt) were then used ...

Herbicide resistance in wild grasses is widespread in the UK, with non-target site resistance (NTSR) to multiple chemistries being particularly problematic in weed control. As a complex trait, NTSR is driven by complex evolutionary pressures and the growing awareness of the role of the phytobiome in plant abiotic stress tolerance, led us to sequence the transcriptomes of herbicide resistant and...

The chinch bug, Blissus occiduus Barber (Hemiptera: Blissidae), is an important pest of buffalograss, Buchloë dactyloides (Nutall) Engelmann and potentially other turfgrass, crop, and non-crop hosts. Choice studies documented the number of B. occiduus present on selected turfgrasses, crops and weeds, and provided important insights into the host preferences of this chinch bug. Grasses with the ...

The taxonomical relationship between Salvia pratensis and S. bertolonii has been unclear for a long time. Salvia bertolonii has alternatively been considered a synonym, a subspecies, a problematic subspecies and a form of Salvia pratensis. However, both these two species are sometimes used in traditional medicine instead of sage (Salvia officinalis) or as an adulteration for the same drug. In o...

Compensation by dark-period uptake of NH(4)(+) and NO(3)(-) in the grasses Phleum pratense L. and Festuca pratensis Huds. following N deprivation during the preceding light period was investigated in flowing solution culture under an artificial 10/14 h light/dark cycle. N was supplied as either NO(3)(-), NH(4)(+) or NH(4)NO(3) at 20+/-5 mmol m(-3), available continuously or only during the dark...

The rycgrass cultivars, Grasslands Manawa and Grasslands Ruanui, were grown in simulated swards in replacement series under systems involving a 2X2 arrangement c.f height and frequency of cutting. Estimates of plant survival at two dates indicate greater overall mortality in the Manawa population. In the earlier part of the experiment the death of Manawa, and of Ruanui plants particularly when ...

This research was conducted in the field of Malta nursery/Dohuk governorate- Iraq, for period 12/15/2021 to 5/15/2022. It aims study effect irrigation numbers and urea fertilizer levels on growth performance evergreen thyme fodder turf grass seeds mixture consist (21% Poa Pratensis, 39% Festuca rubra 40% Lolium perenne). focused two main factors, first is includes (once time week, twice times w...

Introduction Pesticides are increasingly used in intensely managed agro-environments, with an acknowledged impact on crop production, root establishment and plant resilience. At the same time management practices intensified goal to maximize productivity. Materials Methods In a greenhouse, we studied effects of three mowing regimes (uncut, cutting 5 or 15 cm) employed times during season shoot ...