نتایج جستجو برای: lolium perenne common type

تعداد نتایج: 1926757  

Journal: :Environmental pollution 2013
Xiao-ming Wan Susan Tandy Kerstin Hockmann Rainer Schulin

A pot experiment was conducted to investigate the solubility and redox species of antimony (Sb) in a relocated shooting range soil and its uptake by Lolium perenne L. and Holcus lanatus L. under different water regimes. After 1-week waterlogging, the total Sb concentration in soil solution decreased from ∼110 μg L(-1) to <20 μg L(-1), and slowly increased over the following 4 weeks, with the di...

2017
Elizabeth Karn Marie Jasieniuk

Management of agroecosystems with herbicides imposes strong selection pressures on weedy plants leading to the evolution of resistance against those herbicides. Resistance to glyphosate in populations of Lolium perenne L. ssp. multiflorum is increasingly common in California, USA, causing economic losses and the loss of effective management tools. To gain insights into the recent evolution of g...

2017
Beth Penrose Nicholas A Beresford Neil M J Crout J Alan Lovatt Russell Thomson Martin R Broadley

Substitution of a species or cultivar with higher uptake of an element by one with lower uptake has been proposed as a remediation strategy following accidental releases of radioactivity. However, despite the importance of pasture systems for radiological dose, species/cultivar substitution has not been thoroughly investigated for forage grasses. 397 cultivars from four forage grass species; hy...

2017
Elizabeth Karn Marie Jasieniuk

The repeated evolution of herbicide resistance in weeds is an ongoing problem in agricultural regions across the world, and presents a unique system in which to study the origins and spread of adaptive traits across heterogeneous landscapes. Lolium perenne ssp. multiflorum (Lam.) (Italian ryegrass) is a widespread grass weed of agricultural crops that has repeatedly evolved resistance to herbic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1388

جنس lolium شامل گیاهان یکساله و چندساله از غلات متعلق به قبیله poeae می باشد. از این جنس در ایران 6 گونه به شرح زیر وجود دارند: 1- l. perenne l. 2- l. multiflorum lam. 3- l. rigidum gaud. 4- l. temulentum l. 5- l. persicum boiss.& hohen. 6- l. loliaceum ( bory & chaub.) hand.-mazz. اعضای این جنس در تمام نواحی ایران و به خصوص در نواحی شمال و غرب ایران گسترش یافته اند. گونه های این جنس...

2017
Wei Li Lorenzo Katin-Grazzini Xianbin Gu Xiaojing Wang Rania El-Tanbouly Huseyin Yer Chandra Thammina John Inguagiato Karl Guillard Richard J. McAvoy Jill Wegrzyn Tingting Gu Yi Li

The molecular basis behind shade tolerance in plants is not fully understood. Previously, we have shown that a connection may exist between shade tolerance and dwarfism, however, the mechanism connecting these phenotypes is not well understood. In order to clarify this connection, we analyzed the transcriptome of a previously identified shade-tolerant mutant of perennial ryegrass (Lolium perenn...

احمدی لاشکی, محسن , صداقت حور, شهرام, هاشم آبادی, داود, کاویانی, بهزاد,

Salinity is one of the most important ecological stresses which have undesirable effects on seed germination. This study was carried out to evaluate the germination of three species of lawn (Poa pratensis, Lolium perenne, Cynodon dactylon) seeds under salinity stress. The effect of different treatments (Gibberellins 50 mgl-1, 2% CaCl2 and hydroprimig in 24 hours) was evaluated on total germinat...

2002
Elisabeta Dumitru Agatha Popescu

Within the Oltenia surface mining region of Romania, 14,890 ha have been disturbed and only 1,002 ha have been reclaimed. The majority of this disturbance has involved agricultural land (12,208 ha), of which only a small amount has been reclaimed (552 ha). Forest land disturbed by surface mining in this region amounted to 2,682 ha, of which only 450 ha have been reclaimed. Therefore, huge land ...

Journal: :علوم باغبانی ایران 0
سیده مهسا حسینی کارشناسی ارشد، دانشکدۀ کشاورزی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، تهران محسن کافی استاد گروه علوم باغبانی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مسعود ارغوانی استادیار، دانشکده کشاورزی، دانشگاه زنجان

perenial rygrass (lolium perenne cv. “numan”)belongs to poaceae family as an important lawn in landscape design. the objective of this research was to evaluate effects of different concentrations of salicylic acid to enhance the growth and biochemical characteristics of lolium perenne l. under drought conditions. factorial experimental design was arranged in a completely randomized block design...

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