نتایج جستجو برای: time to 50 germination t50g

تعداد نتایج: 10962245  

Journal: :علوم باغبانی ایران 0
موسی رسولی استادیار گروه مهندسی علوم باغبانی و فضای سبز دانشکدۀ کشاورزی دانشگاه ملایر رضا توکلی بنیزی دانشجوی سابق دکتری گروه اصلاح نباتات، دانشکدۀ کشاورزی، واحد علوم و تحقیقات تهران علی ایمانی دانشیار بخش باغبانی مؤسسۀ اصلاح و تهیۀ نهال و بذر کرج

in this investigation, the effect of different treatments on breaking of seed dormancy of almond species and peach seeds include prunus scoparia spach, p. haussknechtii bornm, p. communis l. and p. persica l. was studied to determine their seed germination percentages. first, mature seeds, without endocarp were treated with two percent tmtd® (tetramethylthiuram disulphide) fungicide solution fo...

Journal: :حفاظت گیاهان 0
سهرابی سهرابی راشد محصل راشد محصل نصیری محلاتی نصیری محلاتی موسوی موسوی

abstract r. ficaria is an invasive perennial and tuberous roots weed. the most important means of its reproduction and dispersion are tubers. in order to study the effect of droughty and freezing on germination of lesser celandine tubers, two experiments were conducted at weed science laboratory of faculty of agriculture ferdowsi university of mashhad in 2008. the experiment was a completely ra...

Journal: :پژوهش های تولید گیاهی 0
سلیم فرزانه بهنام کامکار دانشیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان فرشید قادری فر دانشیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد علی چگینی دانشیار موسسه اصلاح و تهیه بذر چغندر قند

background and objectives: the most important determining factor in sugar beet root yield is seed quality. seeds with germination percentage are lower; the germination is slow and non-uniform, will produce plants that initial growth is slow. according to various studies indicate that harvest time is an important factor influencing the quality of sugar beet seed. in the early harvest of sugar be...

2007
LIU Rui

To make a comprehensive assessment on monosodium glutamate (MSG) wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production. The results showed that there were significantly positive linear relationships between the inh...

Journal: :تولید گیاهان زراعی 0
مهین نوذری نژاد دانشجوی کارشناسی ارشد زراعت، گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان ابراهیم زینلی استادیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان افشین سلطانی استاد گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان الیاس سلطانی استادیار گروه زراعت و اصلاح نباتات پردیس ابوریحان، دانشگاه تهران بهنام کامکار دانشیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان

it is very important to find the best model to quantify seed germination rate on the response of temperature which it can be used in determination of cardinal temperatures. this study was conducted to evaluation nonlinear regressions models for description wheat (cv. morvarid) germination rate response to temperatures and water potentials. therefore, seeds germination rate were evaluated in tem...

Ali Salehi Sardoei, Morteza Sabaee Fazel Mostafa Nik zad Mostafa shahvardi

This experiment was conducted to determine allopathic effects of Cyperus rotundus extracts on the tomato germination. It was a completely randomized design (CRD) with four replications, carried out in the laboratory of the Agricultural College of University Jiroft during 2011. The various test treatments were extracts of Cyperus rotundus taken from aerial organs, root, and com...

H. Mut I. Ayan O. Onal Asci U. Basaran, Z. Acar

In many forage legumes, hard seed coat is the main problem impeding thegermination by preventing water and gases transport in seed. We evaluated theeffects of mechanical scarification, chilling, different seedbeds (peat and sand) andtheir combination on the germination ratio and time of 9 naturally grown legumespecies belonging Lathyrus and Vicia genus. Control seeds showed very lowgermination ...

2014
ANANTA VASHISTH RAVENDER SINGH

An experiment was conducted at Indian Agricultural Research Institute, New Delhi to study the effect of pre-sowing seed treatment using different combinations of magnetic field intensities and time duration, on germination and seedling attributes in North Indian variety of tomato (var. Pusa Ruby). Seeds were exposed to static magnetic fields (SMF) of strength 50, 100 and 120 mT for 5, 10, 15, 2...

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

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

An experiment was conducted to investigate the effects of jasmonic and humic acids on some seed germination characteristics of Roselle under the salt stress condition in a factorial experiment, adopting a completely randomized design with three replications. Treatments included four different levels of salinity stresses: 0, 70, 140 and 210 mM; four levels of Jasmonic Acid: 0, 50, 150 and 200 mM...

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