نتایج جستجو برای: seed micro

تعداد نتایج: 190975  

ژورنال: :مجله گیاهشناسی ایران 2016
معصومه مهدوی مصطفی اسدی فتح ا... فلاحیان طاهر نژادستاری

در این مطالعه، میکرو- مورفولوژی 8 گونه از جنس stellaria و دو جنس از نزدیکترین خویشاوندانش، توسط میکروسکوپ الکترونی نگاره بررسی شدند. تنوع زیادی در میکرومورفولوژی پوشش دانه یافت شد و 4 الگوی سلولی متفاوت مشاهده شد. شکل سلول­های پوششی به صورت چند ضلعی کشیده، چند ضلعی پهن، چند ضلعی درهم تنیده و چند ضلعی نامنظم تعیین شدند. تنوع در تزیینات سلول­های پوششی به خوبی اندازه و شکل آنها می­تواند صفات تشخیص...

ژورنال: :مجله گیاهشناسی ایران 2015
مرضیه بیگم فقیر مریم آرمودیان مقدم ربابه شاهی شوان

مطالعه حاضر به بررسی صفات ریزریخت شناسی گرده ،  پوسته بذر و ریخت شناسی میوه 5 گونه از سرده geum متعلق به دو زیر  جنس orthostylus fisch & mey. و  geum با استفاده از میکروسکوپ الکترونی نگاره(sem ) و نوری (lm) اختصاص دارد. گرده این گیاهان به صورت موناد، متقارن شعاعی، جور قطب، سه شیاری- منفذی و دارای اندازه متوسط، طرح کلی بیضی (از نمای استوایی) و سه گوش تا تقریباً مدور (از نمای قطبی) و به شکل تق...

Journal: :international journal of advanced biological and biomedical research 2014
ahmad reza dehghani tafti iraj alahdadi farzad nadjafi mohammad hosein kianmehr mohsen bagheri

objective: in this study investigated effects of different amounts of pelleted manure with urea and micro elements on yield and seed quality of medicinal plants, pumpkin (cucurbita pepo var. styriaca). methods: the animal manure and urea as pellet with four levels (150 kg urea, 50 kg urea + 3.5 ton animal manure, 100 (kg) urea+ 1.5 ton animal manure and 150 (kg) urea+1.5 ton animal manure) loca...

2013
Jovan D Rebolledo-Mendez Radhika A Vaishnav Nigel G Cooper Robert P Friedland

Micro-RNAs regulate the expression of cellular and tissue phenotypes at a post-transcriptional level through a complex process involving complementary interactions between micro-RNAs and messenger-RNAs. Similar nucleotide interactions have been shown to occur as cross-kingdom events; for example, between plant viruses and plant micro-RNAs and also between animal viruses and animal micro-RNAs. I...

2012
John L. Freeman Matthew A. Marcus Sirine C. Fakra Jean Devonshire Steve P. McGrath Colin F. Quinn Elizabeth A. H. Pilon-Smits

Selenium (Se) hyperaccumulator plants can concentrate the toxic element Se up to 1% of shoot (DW) which is known to protect hyperaccumulator plants from generalist herbivores. There is evidence for Se-resistant insect herbivores capable of feeding upon hyperaccumulators. In this study, resistance to Se was investigated in seed chalcids and seed beetles found consuming seeds inside pods of Se-hy...

2007
Kathleen Delate

Introduction Organic seed treatments have been limited in organic production, until recently. Agricoat Natural IITM, is reported to be “an organic liquid biological seed treatment applied as a seed film coating and formulated with beneficial microbes, macro and micro nutrients, amino acids, organic acids, enzymes, proteins, vitamins, and minerals.” Natural IITM also is applied to “promote root ...

2013
Xia Xin Yinglang Wan Wenjun Wang Guangkun Yin Eric S. McLamore Xinxiong Lu

Quantifying seed viability is required for seed bank maintenance. The classical methods for detecting seed viability are time consuming and frequently cause seed damage and unwanted germination. We have established a novel micro-optrode technique (MOT) to measure seed viability in a quick and non-invasive manner by measuring the oxygen influxes of intact seeds, approximately 10 seconds to scree...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

2016
Natalie M. West

Insect floral herbivory can dramatically reduce plant reproductive success. Thus, plants should have evolved mechanisms that minimize the effect of insect herbivores, particularly in monocarpic species that must maximize fitness in a single flowering year. Tolerance is one such mechanism; however, few experiments to date evaluate underlying mechanisms of plant tolerance under natural conditions...

2001
B. G. Sidharth B. M. Birla

We point out that in the non commutativity and breakdown of conventional spacetime at micro scales lies the seed to the unification of gravitation and electromagnetism.

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