نتایج جستجو برای: 12 different characteristics including germination energy

تعداد نتایج: 3920648  

2009
R. E. FARMER F. T. BONNER

Germination energy of cottonwood seed decreased gradually as moisture stress increased from 0.0 to 10.0 atm; 15.0 atm inhibited germination except at 32 and 38 C. Temperature extremes of 15 and 38 C drastically reduced germination energy, and the reductive effect of 38 C was particularly marked after storage. Only 15-atm moisture stress or 15 C greatly reduced total germination. Germination und...

Journal: :علوم گیاهان زراعی ایران 0
المیرا محمدوند استادیار، دانشکدۀ علوم کشاورزی دانشگاه گیلان علیرضا کوچکی استاد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد مهدی نصیری محلاتی استاد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد عباس شهدی کومله استادیار پژوهش، مؤسسۀ تحقیقات برنج کشور-رشت

abstract this experiment, conducted to examine the effects of temperature and photoperiod on seed germination of watergrass (echinochlo aoryzoides) as a new-introduced and barnyardgrass (e. crus-galli) as a common weed species in rice fields of guilan province. this study was consisted of two separate experiments. at the first study, germination responses of two species to different temperature...

ایروانی, مجید , بشری, حسین , خواجه الدین, سید جمال الدین , طهماسبی, پژمان , نقی پور برج, علی اصغر ,

Fire products (smoke, ash and heat) have widely been recognized as a germination cue for some species from both fire prone and fire-free ecosystems. It is an important factor for the understanding of vegetation dynamics and could have potential use for ecological management and rehabilitation of disturbed area. This study attempts to understand the effect of the main fire products (smoke, ash a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1390

abstract:‎ literature is said beautiful words of poetry or prose that excites reader’s or listener’s feel. certainly, to ‎be effective, such a text should have certain characteristics. the four elements of the literature: thought, ‎imagination, emotion and style make a text to be literary and effective. emotion and imagination are ‎specific elements of literary texts, while thought and style a...

Journal: :علوم گیاهان زراعی ایران 0
محمد فتح الهی دانشجوی کارشناسی ارشد رشتۀ علوم و تکنولوژی بذر، دانشگاه گیلان، ایران غلامرضا محسن آبادی استادیار، دانشگاه گیلان، ایران رضا توکل افشاری استاد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد، ایران المیرا محمدوند دانشیار/دانشگاه گیلان

to investigate effects of temperature and salinity different levels on germination parameters of german chamomile (matricaria chamomilla), an experiment carried out in complete randomized design as factorial with three replication in department of agronomy, college of agriculture on the university of guilan, in 2014. treatments were including temperature levels (5, 10, 15, 20, 25, 30 and 35 oc)...

2012
Yueshu Li Rob McCaig

10 Variations in the germination and malting performance during storage of three Canadian 11 malting barley varieties AC Metcalfe, CDC Kendall and CDC Copeland, which had 12 suffered from different degrees of pre-harvest sprouting damage (PHSD) at harvest, 13 were examined. These barley samples were collected in Saskatchewan, Canada during 14 two successive crop years (2007-2008). During storag...

Journal: :Khulna University studies 2022

The experiment was conducted during October 2014 to December evaluate the effect of different levels salinity on seed germination and seedling growth sunflower. factorial consists three variety sunflower such as BRAC HySun 33, BARI sunflower-2, KU SL-1 five viz. 4, 8, 12, 16 dS m-1 with control. salt stress were varied significantly. (germination energy, capacity speed germination) parameters (...

2012
Daniela Heeg David A. Burns Stephen T. Cartman Nigel P. Minton

Clostridium difficile spores play a pivotal role in the transmission of infectious diarrhoea, but in order to cause disease spores must complete germination and return to vegetative cell growth. While the mechanisms of spore germination are well understood in Bacillus, knowledge of C. difficile germination remains limited. Previous studies have shown that bile salts and amino acids play an impo...

In order to study the salt tolerance of three species, Coreopsis grandiflora, Celosia cristata and Matthiola incana in germination stage, an experiment was carried out based on a completely randomized design with three replications in Hormozgan University laboratory in 2015. Salinity levels, including 3, 6, 9, and 12 dS/m were applied by dilution seawater and distilled water used as a control. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

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