نتایج جستجو برای: gerbera jamesonii
تعداد نتایج: 466 فیلتر نتایج به سال:
Chalcone synthase (CHS) is a key enzyme in the biosynthesis of flavonoids, which are important for the pigmentation of flowers and act as attractants to the pollinators. Genes encoding CHS constitute a multigene family in which the copy number varies among plant species and functional divergence appears to have occurred repeatedly. Plants of the Dendranthema genus have white, yellow, and pink f...
This study was arranged to evaluate the effects of perlite-cocofibre substrate inoculation as the most prevalent media in gerbera soilless cultivation with two important arbuscular mycorrhizal fungi (AMF: Glomus intradices and Glomus mossea) on morphological, physiological and quality attributes of gerbera cut flower. Results showed the positive symbiosis between AMF and gerbera ('Stanza'), and...
در سال های89-1388 از مزارع کشت آبی، نهالستان ها و باغ های مختلف منطقة گرگان در استان گلستان بازدید و از گیاهان بیمار با علایم مرگ گیاهچه، پوسیدگی ریشه و طوقه، بوته میری و پوسیدگی میوه نمونه برداری شد. نمونه ها پس از شستشو و ضدعفونی سطحی، در محیط کشت نیمه انتخابی جداسازی فیتوفتورا cma+parph)) کشت شد. تشخیص گونه ها با ویژگی های ریخت شناسی و فیزیولوژیک، و براساس کلیدهای شناسایی معتبر برای تشخیص ای...
گل های رز (rosa hybrida) و ژربرا (gerbera jamesonii) از مهمترین گل های شاخه بریده در صنعت تولید گل می باشند. بیماری کپک خاکستری که توسط botrytis cinerea ایجاد می گردد، یک پاتوژن قارچی است که منجر به فساد بسیاری از میوه ها، سبزی ها و محصولات زینتی می شود. رز و ژربرا از جمله گیاهان حساسی هستند که گل شاخه بریده آن ها توسط این بیماری آلوده می گردد. با توجه به نقش متیل جاسمونات در فعال نمودن سیستم ه...
Abstract This work aimed to investigate the interaction between salt stress and application of silicon dioxide-nanoparticles. In this study, gerbera plants grown in soilless culture were supplied with nutrient solutions different NaCl concentrations (0, 5, 10, 20 30 mM) combination SiO 2 -NPs spray 25 50 mg · L −1 ). Exposure salinity increased sodium concentration but decreased potassium calci...
The molecular mechanisms that control organ shape during flower development are largely unknown. By using differential hybridization techniques, a cDNA designated GEG (for Gerbera hybrida homolog of the gibberellin [GA]-stimulated transcript 1 [GAST1] from tomato) was isolated from a library representing late stages of corolla development in Gerbera. GEG expression was detected in corollas and ...
in this study, gerbera ( cv. alain ducasse ) cut flowers were treated with essences of eucalyptus and rosa damascena at a concentration of 200 mg l -1 and their effects on the vase life of flowers and some qualitative characteristics were evaluated. this research was a completely randomized design with factorial arrangement. maximum vase life was obtained for flowers treated with the eucalyptus...
abstract gerbera is one of the most demanded plants in commercial cut flowers plants. optimizing the micro-propagation of new cultivars is therefore important. in this research “red explosion” cultivar was used and capitola (as explants) were directed to a modified solid murashigue and skoog medium with four concentration of tdz (0.25, 0.50, 0.75 and 1.00 mgl-1) for regeneration. three concentr...
Gerbera jamesoniiis of commercial significance and fifth most used cut flower in the world today. A pot experiment was performed to see the effect of co-inoculation of arbuscular mycorrhizal fungi (AMF) i.e. (Glomus mosseae andAcaulospora laevis) with phosphate solubilizing bacteria Pseudomonas fluorescensin the presence of different doses of superphosphate (low, medium, high) on growth establi...
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