نتایج جستجو برای: traits germination rate

تعداد نتایج: 1070489  

Journal: :The New phytologist 2008
Takahide A Ishida Kazuhide Nara Megumi Tanaka Akihiko Kinoshita Taizo Hogetsu

The spores of ectomycorrhizal fungi (EMF) play critical roles in the population and community development of EMF. Here, the germination and infectivity of EMF spores are examined with reference to the ecological traits of the EMF species. Spores were collected from 12 EMF species, whose successional patterns have been studied in the volcanic desert on Mount Fuji, Japan. Spore germination experi...

2010
Navot Galpaz Matthieu Reymond

Plant responses to environmental stresses are polygenic and complex traits. In this study quantitative genetics using natural variation in Arabidopsis thaliana was used to investigate the genetic architecture of plant responses to salt stress. Eighty seven A. thaliana accessions were screened and showed a large variation for root development and seed germination under 125 and 200 mM NaCl, respe...

Journal: :journal of rangeland science 2014
ali tavili mahsa mirdashtvan rezvan alijani masoud yousefi salman zare

nowadays, in many rangelands, due to over grazing, and problems that some plantshave in germination, the rate of forage production is greatly reduced. so to take advantages ofthe benefits of such plants, it is necessary to identify and remove barriers of germination andestablishment of suitable plants. the present study was designed to investigate differenttreatments of breaking dormancy and st...

Journal: :پژوهش های تولید گیاهی 0
زهرا ستایش مهر هیات علمی/دانشگاه زابل دانشکده علوم صدیقه اسماعیل زاده بهابادی هیات علمی

in order to study the response of coriander medicinal plant to salt stress, two experiments were conducted for germination and vegetative stages. this study was carried out as a factorial experiment based on completely randomized design with three replications. the treatments were salinity at five concentrations including 0, 25, 50, 75 and 100 mm nacl. response of coriander seeds germination in...

Ahmad Dargahikhoo Mohsen Rajabi Moslem Fetri,

A major problem of arid and semi-arid regions is environmental stresses like salinity and drought. To study the effect of Artichoke germination under different levels of salinity and drought, two separate experiments were performed. The experimental treatments included different salinity levels of NaCl (0, 50, 100, 150 mM) and five drought levels by PEG (0, 10%, 15%, 20% and 25%) with three rep...

Extended abstract Introduction: Today, various technologies have been developed to improve seed quality with the aim of increasing the percentage, speed and uniformity of germination and better seedling establishment under different environmental conditions. One of these technologies is seed pre-treatment or seed priming. In this regard, some studies confirmed that pre-treatment of seeds with ...

Journal: :علوم گیاهان زراعی ایران 0
علیرضا عباسی دانشیار گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج، ایران محمد انتصاری دانشجوی دکتری علوم و تکنولوژی بذر، پردیس کشاورزی و منابع طبیعی دانشگاه گرگان، ایران امین ابراهیمی دانشجوی دکتری اصلاح نباتات - ژنتیک مولکولی گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج، ایران

to study the effect of salinity on physiological and morphological traits of chickpea in 2010 at faculty of agriculture and natural resources, university of tehran with seven chickpea genotypes. two experiments design was rcbd with 3 replications and 5 levels of salinity stress (ctrl, 200, 150, 100, 50 mm) for laboratory experiment on germination indices and greenhouse experiment on physiologic...

2011
Olav Skarpaas Edward J. Silverman Eelke Jongejans

19 The negative correlation between dispersal and establishment appears to be well documented 20 in the plant literature; smaller seeds tend to disperse better but germinate less well, and 21 produce smaller seedlings. However, because dispersal capacity is often quantified using 22 proxies, such as the settling velocity of wind-dispersed seeds, little is known about the exact 23 shape of this ...

DOR: 98.1000/2383-1251.1398.6. 19.11.1. 1603.1606 Extended Abstract Introduction: Guar (Cyamopsis tetragonolob) which belongs to fabaceae and leguminosae families is self-pollinating and is indigenous to India and Pakistan. This plant is suitable for growth in dry, damp and sandy soils, and can tolerate saline and relatively alkaline soils. Determining the best time for harvesting seeds and...

2013
S A Tabatabaei

Objective of this study was to evaluation Changes in proline, catalase and germination characteristics of barley seeds under salinity stress. Salinity stress at osmotic potentials of 0 (as control), 4, -8, -12 and -16 bar were adjusted using NaCl before the start of the experiment. Our results showed that, the effect of salinity levels for all traits was significantly. With, increases of salini...

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