nowadays, establishment and maintenance of turfgrasses due to high water requirements was faced with serious doubts. hence, screening of drought resistance native grasses, and introduces them as turfgrass is not only effective in reduction of water usage but can also preserve plant gene pools of the country. in the present experiment, wheat grass and bromus as two native grasses were compared w...

The morphology of forage grass, in particular ryegrass, emerges from the combination of many entangled dynamical processes. Although a plant seems to possess an intrinsic (i.e., genetically determined) architecture, its morphogenesis also displays very high plasticity with respect to environmental conditions. This plasticity could be partly mediated by a self-regulatory process. Indeed, the arc...

Metabolic profiling was carried out in the forage grass Lolium perenne L. (perennial ryegrass) to uncover mechanisms involved in the plants response to water stress. When leaf and root materials from two genotypes, with a contrasting water stress response, were analysed by GC-MS, a clear difference in the metabolic profiles of the leaf tissue under water stress was observed. Differences were pr...

Cell culture and genetic engineering techmques can be used to develop improved pasture plants. To utltise these methods we have developed procedures for regenerating plants from tissue cultures of perennial ryegrass and white clover. In both, the plant genotype influences regeneration capacity. There was significant genetic variation among regenerated perennial ryegrass plants in a wde range of...

current ruminant feeding systems depend on knowledge of the composition of feeds and the rate and extent of degradation of feed organic matter (om) and crude protein (cp) in the rumen. the effect of storage and preparation of samples on in vitro gas production and fermentation characteristics of two common forage species, namely alfalfa and ryegrass werestudied. samples were prepared as fresh (...

key variables: leaf appearance rate, leaf elongation rate, and leaf lifespan. The expression of each of these traits is Quantitative trait loci (QTLs) for a number of agronomically imunder both genetic and environmental control (Lemaire portant traits of perennial ryegrass (Lolium perenne L.) were identiand Chapman, 1996), and leaf development in Lolium fied by means of a reference molecular ma...

Perennial ryegrass is an important turf and forage grass in temperate regions worldwide. Limited genetic gains have been made with current breeding strategies compared other crops, such as rice maize, which benefit from Filial 1 (F1) hybrid breeding. One of the largest constraints on self-incompatibility preventing inbreeding, homozygous parental lines are required to develop hybrids maximal vi...

Perennial ryegrass (Lolium perenne L.) is a widely used cool-season grass species as turf and forage. In order to use biotechnological approaches to improve the species, factors affecting tissue culture responses of mature caryopses of perennial ryegrass were studied. Callus induction and regeneration from mature caryopses of thirteen recentlyreleased turf-type perennial ryegrass cultivars were...

The global increase in the demand for fertilizers and thus phosphorus (P) contributes to depletion of P reserves need recycle this element. This paper presents results a pilot-scale experiment on possibility using fertilizer preparation containing alginate, Fe (AFP) obtained process adsorption from sludge water hydrogel alginate adsorbent cross-linked with iron (III) ions. influence AFP growth ...

Little is known about the effects of NaCl stress on perennial ryegrass (Lolium perenne L.) photosynthesis and carbohydrate flux. The objective of this study was to understand the carbohydrate metabolism and identify the gene expression affected by salinity stress. Seventy-four days old seedlings of two perennial ryegrass accessions (salt-sensitive 'PI 538976' and salt-tolerant 'Overdrive') were...