نتایج جستجو برای: where shading levels of 0 no shading

تعداد نتایج: 21871053  

Journal: :journal of ornamental plants 2000
ali dolatkhahi mansour matloobi alireza motallebiazar navid vahdati

light intensity is considered a limiting factor in greenhouse rose production. the main aim of this experiment was to evaluate the effect of shading treatments (0, 25, 50, and 65% shading) on quality and chlorophyll content of cut rose (rosa hybrida cv. avalanche), under greenhouse conditions. the experiment was planned in randomized completely block design with four replications. all shoots we...

Ali Dolatkhahi Alireza Motallebiazar Mansour Matloobi Navid Vahdati

Light intensity is considered a limiting factor in greenhouse rose production. The main aim of this experiment was to evaluate the effect of shading treatments (0, 25, 50, and 65% shading) on quality and chlorophyll content of cut rose (Rosa hybrida cv. Avalanche), under greenhouse conditions. The experiment was planned in randomized completely block design with four replications. All shoots we...

Journal: :علوم باغبانی ایران 0
زینب اسماعیل زاده دانشجوی ارشد ایلام مهدی صیدی استادیار دانشگاه ایلام

effects of different mulches and saran shading on yield and quality of tomato (lycopersicon esculentum cv. early urbana vf) were studied at ilam university, ilam, iran in 2009. the research work was carried out using a 4×4 split plot experimental arrangment through a completely randomized block design (crbd) of three replications, where shading levels of 0%: no shading; 40%: white; 55%: double-...

Journal: :پژوهش های زراعی ایران 0
بی بی الهه موسوی فر محمد علی بهدانی مجید جامی الاحمدی سید علی موسوی فر

in order to study the effects of shading on head and its near leaves on yield and yield components of spring safflower genotypes, an experiment was conducted in factorial arrangement based on a complete randomized block design with four replications at agricultural research station, faculty of agriculture, birjand university during 2008. factors were including three spring safflower genotypes (...

2000
Jason J. Griffin Frank A. Blazich Thomas G. Ranney

Shoot tip cuttings of Quercus phillyraeoides A. Gray ‘Emerald Sentinel’ (‘Emerald Sentinel’ oak), in a transitional growth stage between softwood and semi-hardwood, were collected from containerized plants growing under uniform fertility on June 4, 1998. Cuttings were treated with talc formulations of indolebutyric acid (IBA), ranging from 0 to 8000 ppm (0.8%), and placed under intermittent mis...

مطلبی آذر, علیرضا, دولتخواهی, علی , مطلوبی, منصور ,

  Nowadays, various training systems are utilized to grow greenhouse roses. Some of the training systems permit high canopy light penetration and hence increase canopy photosynthesis rate. The aim of this investigation was to evaluate the response of arching and traditional training systems to shading (0 (no shading/control), 25, 50 and 65%) and their effects on marketing quality of cut roses (...

In many parts of Iran high light intensities during summer can induce stress in cut flower production under open field and greenhouse conditions. Despite roses prefer sunny places for optimum growth, but in practice some levels of rough shading is applied in greenhouse production to improve the quality of cut flowers. So, it is useful to find the light intensities under which different rose cul...

Journal: :J. Graphics, GPU, & Game Tools 2011
Peter-Pike J. Sloan Derek Nowrouzezahrai Hong Yuan

Shading models that wrap around the hemisphere have been used to approximate subsurface scattering, area light sources, and softer reflectance profiles. We generalize a specific technique that has been used in games by parameterizing the amount of wraping while retaining important mathematical properties. We include details on how to incorporate theses models with spherical harmonic lighting. 1...

Journal: :Annals of botany 2007
Yun Liu Feike Schieving Josef F Stuefer Niels P R Anten

BACKGROUND AND AIMS Because plants protect each other from wind, stand density affects both the light climate and the amount of mechanical stress experienced by plants. But the potential interactive effects of mechanical stress and canopy shading on plant growth have rarely been investigated and never in stoloniferous plants which, due to their creeping growth form, can be expected to respond d...

Journal: :journal of agricultural science and technology 2016
f. sen r. oksar m. kesgin

this study aimed to determine the effects of different shading ratio and covers on “sultana seedless” table grape quality and storability. grapevines were covered at the veraison stage with 3 shading nets (0, 35, and 75% shading), which were then replaced with covering materials including polypropylene cross-stitch (pc), life pack (lp) and mogul (mg), just before harvest. harvested grapes in al...

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