نتایج جستجو برای: glomerata dactylis

تعداد نتایج: 1086  

Journal: :The British journal of nutrition 1989
C H Malbert R Baumont

1. The relations between food intake, reticulo-ruminal motility and abomasal digesta outflow were investigated in ewes receiving lucerne (Medicago sativa) v. orchard grass (Dactylis glomerata) hay. Abomasal digesta outflow was recorded continuously by means of an electromagnetic flowmeter probe inserted into a duodenal T-shape cannula and the motility using strain-gauge force transducers. Volum...

1990
Colin D. Meurk Susan Walker Roger S. Gibson Peter Espie

Changes in vegetation from 1990 to 2000 were examined at 10 high country localities, representing four grassland types: fescue tussock (Festuca novae-zelandiae), snow tussock (Chionochloa rigida), red tussock (C. rubra), and silver tussock (Poa cita). At each locality, three treatments were established: ambient sheep+rabbit grazing, rabbit grazing only, and no grazing. The mutivariate methods o...

Journal: :Journal of environmental quality 2003
C H Lin R N Lerch H E Garrett W G Johnson D Jordan M F George

A field lysimeter study with bare ground and five different ground covers was established to evaluate the effect of forage grasses on the fate and transport of two herbicides in leachate. The herbicides were atrazine (ATR; 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) and isoxaflutole [IXF; 5-cyclopropyl-4-(2-methylsulfonyl-4-trifluormethyl-benzoyl)isoxazole], which has the commercial ...

Journal: :Frontiers in plant science 2016
Rajae Kallida Latifa Zhouri Florence Volaire Adrien Guerin Bernadette Julier Naima Shaimi Malika Fakiri Philippe Barre

Under Mediterranean climates, the best strategy to produce rain-fed fodder crops is to develop perennial drought resistant varieties. Summer dormancy present in native germplasm has been shown to confer a high level of survival under severe drought. Nevertheless it has also been shown to be negatively correlated with annual biomass productivity. The aim of this study was to analyze the correlat...

Journal: :Journal of experimental botany 2000
G Deckmyn I Nijs R Ceulemans

There are several very accurate methods to determine leaf angles in closed canopies. However, these are generally very time-consuming or require special equipment. Average canopy leaf angles were derived from simple height and blade length measurements. An exponential relationship between the height/length ratio and the average blade leaf angle was used. The method was tested for two grass spec...

Journal: :Plant physiology 1984
S Yoshida

The thermotropic transition of plasma membrane of Dactylis glomerata was studied by using fluorescence polarization of embedded fluorophore, 1,6-diphenyl-1,3,5-hexatriene. Under the presence of 35% ethylene glycol, reversible thermotropic transitions were observed in isolated plasma membrane vesicles in nearly the same temperature range as the temperature of freezing injury to cells. In liposom...

Journal: :Agronomía mesoamericana 2021

Introducción. El uso de asociaciones gramíneas y leguminosas permite tener mayor valor nutritivo rendimiento materia seca. Objetivo. Evaluar seis mezclas forrajes perennes, anuales en épocas seca lluvias Nariño, Colombia. Materiales métodos. estudio se realizó entre diciembre 2017 noviembre 2018 el Centro Investigación Obonuco la Corporación Colombiana Agropecuaria (AGROSAVIA). Se utilizó un di...

Journal: :Frontiers in microbiology 2016
Rhea Lumactud Shu Yi Shen Mimas Lau Roberta Fulthorpe

The bacterial endophytic communities of four plants growing abundantly in soils highly contaminated by hydrocarbons were analyzed through culturable and culture-independent means. Given their tolerance to the high levels of petroleum contamination at our study site, we sought evidence that Achillea millefolium, Solidago canadensis, Trifolium aureum, and Dactylis glomerata support high levels of...

Journal: :Annals of botany 2009
Flore Viard-Crétat Christiane Gallet Marianne Lefebvre Sandra Lavorel

BACKGROUND AND AIMS Is the release of allelochemicals by the dominant tussock grass Festuca paniculata responsible for its dominance by inhibiting growth of neighbour grasses in subalpine grasslands? As such a community is also structured by mowing practices, what could be the impact of mowing on allelopathy? METHODS A design was used that isolated allelopathy from resource competition by sep...

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