نتایج جستجو برای: tilia platyphyllos

تعداد نتایج: 1085  

2013
Jan Altman Radim Hédl Péter Szabó Petr Mazůrek Vladan Riedl Jana Müllerová Martin Kopecký Jiří Doležal

BACKGROUND Coppicing was one of the most important forest management systems in Europe documented in prehistory as well as in the Middle Ages. However, coppicing was gradually abandoned by the mid-20(th) century, which has altered the ecosystem structure, diversity and function of coppice woods. METHODOLOGY/PRINCIPAL FINDINGS Our aim was to disentangle factors shaping the historical growth dy...

در این تحقیق اثر منشاء قلمه خشبی نمدار برگ درشت .Tilia platyphyllos Scop (حاصل از پایه دانه-زاد، و پاجوش)، و هورمون IBA (0، 1000، 3000، 5000 و 10000 میلی‌گرم در لیتر) بر تحریک جوانه‌ آن در قالب طرح بلوک کاملأ تصادفی و 3 تکرار صورت گرفت. آزمایش از اواخر اسفند به‌ مدت 47 روز در یک محیط مُسَقّف در جلگه تنکابن انجام شد. نتایج نشان داد اثر منشاء قلمه روی تحریک جوانه‌ (درصد سبز شدن جوانه)، سرعت جوانه‌زن...

ژورنال: :زیست شناسی کاربردی 0
زهرا نوغانی کارشناسی ارشد لیلا کوهی کارشناسی ارشد پریسا پناهی استادیار یوسف ترابیان استادیار مهدی پور هاشمی دانشیار آرمین هاشمی استادیار

سطح برگ یکی از مهم ترین ویژگی­های گیاهان است که ارتباط مستقیم با متغیرهای اکولوژیکی و فیزیولوژیکی گیاه مانند شاخص سطح برگ، جذب نور، تبخیر و تعرق، فتوسنتز و رشد دارد، از اینرو محاسبه آن فوق­العاده حائز اهمیت است. در این پژوهش سعی شد با استفاده از یک روش غیرتخریبی (محاسبه مدل­های ساده رگرسیونی) و با اندازه­گیری متغیرهای کمی برگ شامل طول و پهنا و ترکیب این دو متغیر، سطح برگ 7 گونه درختی شاخص قطعه ...

2012
C. Lidwien Raak-van den Berg Hendrika J. De Lange Joop C. Van Lenteren

Harmonia axyridis has been introduced as a biological control agent in Europe and the USA. Since its introduction, it has established and spread, and it is now regarded as an invasive alien species. It has been suggested that intraguild predation is especially important for the invasion success of H. axyridis. The aim of this study was to compare the intraguild predation behaviour of three lady...

2014
Noemí Cárdenas-Rodríguez María Eva González-Trujano Eva Aguirre-Hernández Matilde Ruíz-García Aristides Sampieri Elvia Coballase-Urrutia Liliana Carmona-Aparicio

Tilia genus is commonly used around the world for its central nervous system properties; it is prepared as tea and used as tranquilizing, anticonvulsant, and analgesic. In this study, anticonvulsant activity of the Tilia americana var. mexicana inflorescences and leaves was investigated by evaluating organic and aqueous extracts (100, 300, and 600 mg/kg, i.p.) and some flavonoids in the pentyle...

Journal: :Biology letters 2017
Hauke Koch Philip C Stevenson

For decades, linden trees (basswoods or lime trees), and particularly silver linden (Tilia tomentosa), have been linked to mass bee deaths. This phenomenon is often attributed to the purported occurrence of the carbohydrate mannose, which is toxic to bees, in Tilia nectar. In this review, however, we conclude that from existing literature there is no experimental evidence for toxicity to bees i...

2013

Tilia species, among which is Tilia cordata Mill. (Tiliaceae), have been used in folk medicine as anxiolytic. The hydroethanolic extract was analyzed by using liquid chromatography with mass spectrometry HPLC-DAD-ESI-MS/MS in negative ion mode, and its chemical composition was compared to flavonoids reported as anxiolytics. The major flavonoids found were: quercetin-3,7-di-O-rhamnoside, kaempfe...

Journal: :International journal of agriculture, environment and food sciences 2023

In this study, sage (Salvia officinalis L.), linden (Tilia platyphyllos Scop.), and daisy (Matricaria chamomilla L.) herbs, which have rich phytochemical content are frequently consumed in winter months for medicinal purposes, were obtained from three different herbalists located Bingol investigated terms of their heavy metal contents, total flavonoid, anthocyanin polyphenol contents. Some the ...

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