نتایج جستجو برای: farm seed priming and methods of zinc sulfate application on seed emergence properties

تعداد نتایج: 24606175  

Extended Abstract Introduction: Providing important and effective elements such as zinc and boron- especially in areas where the soil for some reason cannot meet the needs of the plant- will be a good solution to improve seed and seedling quality and nutrition, and community health status. A considerable part of the wheat producing regions in the country are faced with late season haet during ...

Journal: :تولید گیاهان زراعی 0

in order to study the effects of foliar application of zn and k on yield and some physiological traits of spring safflower (carthamus tinctorius l.), cv. esfahan 14, under drought stress, a pot experiment was conducted in research greenhouse of yasouj university. experiment was a factorial based on completely randomized design with three replications. factors consisted of drought stress (s1- wi...

In order to extend the cultivation season and increase in growth ability in tropical regions, the effect of priming media, SA, NaCl, PEG, water and vitamin B1 with chemical elimination of pericarp by sulphuric acid, evaluated on growth characters of spinach under high temperature stress (25, 30, 35 °C). Results showed that PEG and vitamin B1 pretreatment after scarification with sulphuric a...

Journal: :Journal of Pharmacognosy and Phytochemistry 2021

Seed germination, emergence and crop growth are often constrained by multiple environmental stress under field condition limiting productivity. priming, a age old inexpensive technique, consisting of soaking seeds in priming agent prior to sowing, has been applied different crops conditions with varying degrees success. To understand the significance this potentially transformative agronomic st...

Journal: :پژوهش های تولید گیاهی 0
حامد بخرد دانشجو بتول مهدوی عضو هیات علمی دانشگاه ولی عصر (عج) رفسنجان اصغر رحیمی عضو هیات علمی دانشگاه ولی عصر (عج)رفسنجان

background and objectives: alkalinity stress caused by the alkaline salts such as na2co3 or nahco3 in the soil. alkaline stress affected germination, growth and crop productivity. moreover, the alkalinity stress can directly damage plant growth, alter the availability of nutrients, and disrupt the balance of ions and mineral nutrition. the application of different seed pretreatment methods is o...

اسکندری, هادی , ساجدی, نورعلی, طهماسبی, رضا,

To study the effect of selenium and salicylic acid on agronomic characteristics of dry land wheat cultivars, an experiment was carried out as factorial based on Complete Randomized Block Design with three replicates at the research field station of Islamic Azad University- Arak, Iran in 2010-2011 cropping season. The experimental factors were including three levels of salicylic acid: without sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...

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