نتایج جستجو برای: length of seed

تعداد نتایج: 21180593  

Journal: :Electronic Colloquium on Computational Complexity (ECCC) 2016
Gil Cohen

We construct non-malleable extractors with seed length d = O(log n+log(1/ε)) for n-bit sources with min-entropy k = Ω(d), where ε is the error guarantee. In particular, the seed length is logarithmic in n for ε > 2−(logn) 1/3 . This improves upon existing constructions that either require super-logarithmic seed length even for constant error guarantee, or otherwise only support min-entropy n/po...

Journal: :علوم گیاهان زراعی ایران 0
محمد مهدی مجیدی

tall fescue is a cool season grass widely distributed and adapted to different environmental conditions of iran. superior seed-yielding potential of the plant is an important criterion during the seed reproduction phases of breeding new cultivars and as well under commercial seed production conditions. in order to evaluate germplasm and investigate the pattern of genetic variation of seed trait...

Journal: :علوم باغبانی ایران 0
علی شاهی قره لر دانشجوی سابق کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران ذبیح اله زمانی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمدرضا فتاحی مقدم دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر بوذری استادیار، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج عبداله خدیوی خوب دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

some cerasus sub-genus wild species that are used as rootstocks in sour and sweet cherry propagation can also be employed in breeding programs. the aim of this study was to clearly evaluate some characteristics of subgenus cerasus genotypes to be used in the future cherries' breeding programs. in order to evaluate some morphological characteristics of the vegetative parts as well as seeds ...

ژورنال: علوم آب و خاک 2002
مصطفی مبلی, , اشکبوس دهداری, , عبدالمجید رضایی, ,

In order to determine the relationships among the different traits of onion and to study the direct and indirect effects of these traits on bulb and seed yield, an experiment was conducted in 1998 at the research farm of Isfahan University of Technology. Results showed that phenotypic and genotypic correlations were similar and bulb weight showed the highest and lowest coefficients of correlati...

Extend abstract Introduction: Guava (Psidium guajava L.) is one of the most important fruit crops of tropical and subtropical regions. Guava (Psidium guajava L.) can be propagated by seed, layering, grafting, cutting or tissue culture. Propagation by seed is used for the production of seedlings usable in breeding programs or rootstock production for grafting. Guava seeds germinate poorly and u...

مصطفی مبلی, , اشکبوس دهداری, , عبدالمجید رضایی, ,

In order to determine the relationships among the different traits of onion and to study the direct and indirect effects of these traits on bulb and seed yield, an experiment was conducted in 1998 at the research farm of Isfahan University of Technology. Results showed that phenotypic and genotypic correlations were similar and bulb weight showed the highest and lowest coefficients of correlati...

Maryam Hamele Darbandi Mehdi Panahyian Kivi Saeid Hokmalipour,

In order to study of the effect of seed inoculation with PGPR on nitrogen and phosphorus use efficiency of spring wheat in different levels of nitrogen and phosphorus fertilizers, an experimental was conducted at the Research Farm of Mohageh Ardabili University, Ardabil, Iran during 2012 year. The combination of nitrogen fertilizer in three levels (0, 40 and 80 kg N/ha as urea) and phosphorus f...

Journal: :J. Comb. Theory, Ser. A 2010
Frank Fiedler Jonathan Jedwab Amy Wiebe

In 2007 Jedwab and Parker proposed [10] that the natural viewpoint for a Golay complementary sequence is as a projection of a multi-dimensional Golay array. In 2008 Fiedler, Jedwab and Parker [5] used this viewpoint to show how to construct and enumerate all known 2-phase Golay sequences of length 2, starting from two sources of Golay seed pairs. The first source of seed pairs is the trivial Go...

The purpose of this study was to examine the evaluating the potential of seed priming techniques in improving germination and early seedling growth of Aeluropus Macrostachys under salinity stress condition. This study was performed at the Islamic Azad University in Baft city which is located in southeast of kerman province (2250 meters above the sea level, 92º 17 N latitude and 56º 36 E longitu...

Journal: :پژوهش های زراعی ایران 0
محمدبهزاد امیری پرویز رضوانی مقدم رضا قربانی جبار فلاحی رضا دیهیم فرد فرنوش فلاح پور

in order to investigate the effects of plant growth promoting bacteria on growth characteristic of wheat, an experiment was conducted at the research greenhouse, faculty of agriculture, ferdowsi university of mashhad, iran, in year 2009. a completely randomized design based on factorial arrangement (3×6) with three replications was used. the first factor consisted of three cultivars of wheat (c...

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