نتایج جستجو برای: moist chilling
تعداد نتایج: 8616 فیلتر نتایج به سال:
Propagation of P. atlantica is through seed culture, however, the mechanical and physiological dormancy decrease germination parameters of seeds in this species. In this study, the seeds of Pistacia atlantica were collected at normal fully mature from mountain regions of Dehloran city in the late summer of 1393. The skins of seeds removed and the seeds were disinfected in sodium hypochlorite so...
Chamomile (Anthemis haussknechtii Boiss. & Reut. and Anthemis pseudocotula Boiss.) are annual, medicinal and aromatic plant belong to Asteraceae family. This two species have special important in pharmaceutical and cosmetic industries. Current study was carried out to investigation of different pre-treatments for enhancement of seed emergence potential, rate of emergence and v...
milk thistle (silybum marianum l. gaertner) is an annual or biannual plant of the asteraceae family. this species is important not only as a medicinal plant traditionally, but also as an endemic plant to protect vegetative and natural resources in iran. this experiment was carried out to find the most effective treatments to break milk thistle seed dormancy and improve its cultivation in vast s...
Extended Abstract Introduction: Schrophularia striata is one of the medicinal plants of the Scrophulariaceae family and contains phenolic compounds. Locals have traditionally used this herbal medicine to treat infections caused by wounds, gastrointestinal diseases, and eye diseases. Due to excessive consumption by indigenous people and climate change, especially increasing temperature, the col...
Pectin methyl esterase (PME) (EC 3.1.1.11) catalyzes the hydrolysis of methylester groups of cell wall pectins. We investigated the role of this enzyme in dormancy termination and germination of yellow cedar (Chamaecyparis nootkatensis [D. Don] Spach) seeds. PME activity was not detected in dormant seeds of yellow cedar but was induced and gradually increased during moist chilling; high activit...
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 see...
به منظور فهم برخی مکانیسم های فیزیولوژیکی و مولکولی حساسیت به تنش chilling و سرما در گیاهان تاثیرات تنش chilling و سرما را روی برخی پارامترهای فیزیولوژیکی و مولکولی گیاه آرابیدوپسیس تالیانا بررسی کردیم. گیاهان چهار هفته ای (گیاه وحشی و 4 جهش یافته حساس به chilling شامل chs2-2، chs2-1، chs1-2 و chs1-1) به مدت یک هفته در معرض 2 تیمار دمایی متفاوت (13 درجه سانتیگراد و 4 درجه سانتیگراد) و دمای کنتر...
seed dormancy is a temporary failure of a viable seed to germinate. various methods are used for breaking seed dormancy, depending on plant species and type of dormancy. three seed populations originated from esfahan, semnan and fars provinces were exposed to different seed dormancy breaking treatments such as mechanical and chemical scarification, humid chilling, ga3 and polyethylenglycol 6000...
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