نتایج جستجو برای: germination and seedling growth

تعداد نتایج: 16936904  

Journal: :علوم گیاهان زراعی ایران 0
هنگامه عطاردی پردیس ابوریحان، دانشگاه تهران حمید ایران نژاد پردیس ابوریحان، دانشگاه تهران امیرحسین شیرانی راد مؤسسه تحقیقات اصلاح و تهیه نهال و بذر کرج رضا امیری پردیس ابوریحان، دانشگاه تهران غلامعباس اکبری پردیس ابوریحان، دانشگاه تهران

this research was conducted to evaluate the role of drought stress and planting dates on seeds vigour and seedling growth of produced seeds. the experiment was performed in the research field and seed technology laboratory of the department of agronomy and plant breeding, college of aboureyhan in pakdasht in spring 2008. five canola cultivars including licord, opera, modena, elite, sarigol (in ...

DOR: 98.1000/2383-1251.1397.5.137.9.1.1608.41 Extended abstract Introduction: Interference caused through weeds’ and crops’ competition for environmental resources and allelopathy brings about damage in crop species. Allelopathy is defined as a direct or indirect inhibiting or provoking effect of a plant on other plants through the production of chemical compounds introduced into the envi...

Journal: :چغندرقند 0
ذبیح اله رنجی عضو هیئت علمی مؤسسه تحقیقات چغندرقند حمید شریفی کارشناس ارشد مرکز تحقیقات کشاورزی صفی آباد دزفول کریم کاظمین خواه عضو هیئت علمی مرکز تحقیقات کشاورزی آذربایجان شرقی

seeds of nine sugar beet lines: five drought tolerant, two susceptible, and two medium tolerant were washed, sterilised, dried, and sown in water agar medium for germination test. seedling growth characters such as cotyledon fresh weight (cfw), cotyledon dry weight (cdw), root fresh weight (rfw), root dry weight (rdw), and root length (rl) were determined after the end of 28 days period of expe...

Smyrniopsis aucheri BOISS is an herbaceous species of Apiaceae family which seed germination is difficult. Therefore, to restore the natural habitats of this plant, it is necessary to provide information about the length and the factors that affecting seed dormancy of this plant. In order to study effect of the duration of chilling and temperature on seed dormancy and seedling establishment of ...

DOR: 98.1000/2383-1251.1397.5.101.9.1.1578.1610 Extended abstract  Introduction: Stevia is a perennial short day plant, belonging to the Asteraceae family. It is also called sugar leaf. Poor germination of this plant serves as a barrier for its planation on a large scale, which contributes to its scarcity and expensivenss as a medicinal herb. In many plants, seed germination is sensitive...

The purpose of this study was to evaluate the effect of Nano TiO2 and Nano CNT on some germination indices and growth parameters of some hulled barley cultivars. The experiment was conducted in a laboratory at Shahrekord University during 2014. The study was a factorial, adopting a completely randomized design with four replications. Treatments consisted of titanium dioxide nanoparticles and ca...

Journal: :حفاظت گیاهان 0
روزبه فرهودی ندا کورش نژاد عادل مدحج

in order to evaluate the allelopatic potential of wheat aquatic extracts against winter wild oat (avena ludoviciana) at germiantion and vegetative growth stage two expriments were coducted in islamic azad university, shoushtar branch at 2012. germination expriment was laid out according to completely randomized design with four replications and treatments were various concentration of wheat ext...

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 ...

Pyrethrum is a perennial daisy grown commercially for the insecticide that is extracted from its flowers. In order to evaluate germination and seedling growth of pyrethrum under different temperature and drought stress treatments, an experiment was conducted in seed technology laboratory of Faculty of Agriculture of Islamic Azad University of Isfahan branch in 2018. During this experiment, poly...

Journal: :Plant signaling & behavior 2015
Pengcheng Wang Jian-Kang Zhu Zhaobo Lang

Nitric oxide (NO) plays important roles in plant development, and biotic and abiotic stress responses. In a recent study, we showed that endogenous NO negatively regulates abscisic acid (ABA) signaling in guard cells by inhibiting sucrose nonfermenting 1 (SNF1)-related protein kinase 2.6 (SnRK2.6)/open stomata 1(OST1) through S-nitrosylation. Application of NO breaks seed dormancy and alleviate...

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