Journal Article

salt stress; تنش شوری; number of radicle; remained seed weight after germination; ارقام گندم; تعداد ریشه چه; وزن بذر باقیمانده پس از جوانه زنی; wheat cultivars

In order to study the effects of different levels of salinity on germination components of wheat cultivars, a factorial experiment was conducted based on a completely randomized design with three replications. Experimental factors were wheat cultivars at eight levels (Saysons, Gaspard, Finkan, MV-17, Chamran, Sardari, Atila-4 and Azar-2) and six levels of salinity (0, 25, 50, 100, 150 and 200 ...

Journal Article

seed dormancy; germination percentage; اسید سولفوریک; درصد جوانه زنی; خواب بذر; سرمادهی; stratification; sulfuric acid

Given the medicinal and ornamental properties of Hawthorn (Crataegus spp.), and given that there are some problems in its propagation, which is due to the hard cover of the seeds and immature embryo, working out techniques that can facilitate the process of seeds germination is of great import. Thus, the present study sought to identify the best method for the purpose of breaking the seed dorm ...

Journal Article

osmotic potential; گیاهچه; seedling; weed; علف هرز; germination; پتانسیل اسمزی; جوانه زنی

Salt and drought are two major environmental stresses that affect growth and development of plants. In order to study the effects of sodium chloride and polyethylene glycol (6000) on germination characteristics and early seedling growth of redroot pigweed (Amaranthus retroflexus), two completely randomized designs with 4 replications were conducted at Weed Research Laboratory of Bu-Ali Sina Un ...

Journal Article

salt; نمک; pre-sowing hydration; جوانه­ زنی; germination; شاخص­های رشدی گیاهچه; پیری بذر; seed aging; هیدراسیون پیش کاشت; bean

This study was conducted to evaluate the effect of hydropriming and seed aging on germination and enzymatic properties of pinto bean under salinity stress as factorial based on a completely randomized design with four replications. Two groups of seeds (i.e., non-aged and aged seeds), two hydropriming treatments (i.e., hydro primed and unprimed seeds) and six salinity treatments (i.e., 0, 2, 4, ...

Journal Article

پیری تسریع شده; peanut; بنیه بذر; germination; seed size; ذخایر بذر; بادام زمینی; production region; heterotrophic growth; وزن بذر

To study the effect of production region and seed size on germination indices and heterotrophic growth components of peanut seedling, a study was performed in three peanut fields in Astaneh Ashrafieh and Agronomy Laboratory of Rasht Islamic Azad University from 2010 to 2012. This research was carried out using the standard germination, cold and accelerated aging tests. Tests were performed usi ...

Journal Article

salicylic acid; hydropriming; اسید سالیسیلیک; اسید هیومیک; هیدروپرایمینگ; اسید جیبرلیک; gibberellic acid; humic acid; stress; تنش

This study was conducted to study the effects of different priming methods on germination rate and percentage under salinity stress and to determine the stability of primed seeds. In order to accomplish this, three different experiments were conducted separately, including the experiment of water uptake, the experiment of salinity stress, and the experiment of storability of primed seeds. Prim ...

Journal Article

تجزیه مؤلفه اصلی; salt; جوانه‌زنی; biplot; شوری; germination; cotton; پنبه; بای پلات; principal components

Salinity is one of the most important factors limiting agricultural production. Cotton, as an oil-fiber plant, is one of the most important industrial plants and is sensitive to salinity, especially at germination and seedling stages. Therefore, in this study, 14 allotetraploid varieties of commercial and local cotton were selected. The study was carried out as factorial with a completely rand ...

Journal Article

osmotic potential; سرعت جوانه‌زنی; پتانسل اسمزی; گیاه دارویی; germination rate; medicinal plant; seedling weight; وزن گیاهچه

In order to investigate the effect of different levels of temperature and drought stress on seed germination parameters of nettle roman (Urtica pilulifera L.), an experiment was conducted as factorial in a completely randomized design with three replications at the Department of Agronomy, College of Agriculture, University of Guilan, in 2014. Treatments included different temperature levels (5 ...

Journal Article

rice cultivars of hashemi and shiroodi; آسکوربات; هیدروپرایمینگ; hydro-priming; کلرید کلسیم; ascorbate; نانوذرات نقره.; رقم‌های برنج هاشمی و شیرودی; calcium chloride; silver nanoparticle

The present study sought to compare the effect of seed priming by hydropriming, ascorbate and calcium chloride (CaCl2) versus different concentrations of silver nanoparticles on two Iranian rice cultivars (Hashemi and Shiroodi) under drought stress. The experimental design, which was factorial, was completely randomized. The first factor was control (without priming), hydro-priming, 20 mg.L-1 ...

Journal Article

potassium nitrate; hydrogen peroxide; scarification; seed vigor index; germination rate; sulfuric acid

Extended abstractIntroduction: Malva (Malva neglecta) is one of perennial plants of the Malvaceae family. One of the most important mechanisms for survival of the plants is dormancy, rest or distance in germination and growth; in this case, despite favorable conditions for germination, the seed remains at rest for an indefinite period of time. Seed dormancy is a consistent feature in some seed ...