نتایج جستجو برای: seed system

تعداد نتایج: 2300111  

2014
M. Jiang X. P. Shen W. Gao M. X. Shen Q. G. Dai

We studied the heterogeneity of soil weed seed-bank in a rice-wheat rotation system after long-term application of different organic or non-organic fertilizers, and the effects of major nutrients on the characteristics of the weed seed-bank. The soil was sampled in the Taihu area after a 31-year long-term fertilization experiment. Weed seeds were identified and counted in the surface soil of 12...

Journal: :Molecular ecology 2010
Jordan Karubian Victoria L Sork Tessa Roorda Renata Durães Thomas B Smith

As the dominant seed dispersal agents in many ecosystems, frugivorous animals profoundly impact gene movement and fine-scale genetic structure of plants. Most frugivores engage in some form of destination-based dispersal, in that they move seeds towards specific destinations, resulting in clumped distributions of seeds away from the source tree. Molecular analyses of dispersed seeds and seedlin...

2013
Farshad Homayouni Moghadam Behzad Vakili-Zarch Mohammad Shafiee Azam Mirjalili

Trigonella foenum graecum commonly known as Fenugreek exerts normoglycemic and insulinotropic effects in humans by compounds from its seed and leaf extracts. Some studies reported that treating pregnant mice with fenugreek seed could cause toxic effects on the nervous system of its pubs during developmental growth, while in some other studies neuroprotective properties were considered for it. S...

2014
Martin F. Breed Matthew J. Christmas Andrew J. Lowe

Studying associations between mating system parameters and fitness in natural populations of trees advances our understanding of how local environments affect seed quality, and thereby helps to predict when inbreeding or multiple paternities should impact on fitness. Indeed, for species that demonstrate inbreeding avoidance, multiple paternities (i.e. the number of male parents per half-sib fam...

Journal: :Journal of Agribusiness and Rural Development 2020

Journal: :International Journal of Current Microbiology and Applied Sciences 2020

1999

LLE Review, Volume 78 97 Laser-fusion experiments require precise control of the temporal profile of optical pulses applied to targets. An optical pulse– shaping system has been in operation on OMEGA for several years.1 During this time the demands on the precision, flexibility, and repeatability of the optical pulse–shaping system have steadily increased. To meet these new demands, a new pulse...

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