نتایج جستجو برای: vrn 1

تعداد نتایج: 2752646  

Journal: :J. Internet Serv. Inf. Secur. 2013
Jun Ye Xiaofeng Chen Jianfeng Ma

In information security field underlying cryptography, random sequences, which are the base of system security, play a very important role. Random sequences with high security are often needed in cryptography field. From the view of security, real random sequences should be completely unpredictable and reliable. In many circumstances, a random number not only need to be random, but also need to...

Journal: :Journal of experimental botany 2007
James Cockram Huw Jones Fiona J Leigh Donal O'Sullivan Wayne Powell David A Laurie Andrew J Greenland

The control of flowering is central to reproductive success in plants, and has a major impact on grain yield in crop species. The global importance of temperate cereal crops such as wheat and barley has meant emphasis has long been placed on understanding the genetics of flowering in order to enhance yield. Leads gained from the dissection of the molecular genetics of model species have combine...

2011
Wei Li Zheng Wang Jian Li Hongchun Yang Sujuan Cui Xiaoxue Wang Ligeng Ma

Polycomb group protein (PcG)-mediated gene silencing is emerging as an essential developmental regulatory mechanism in eukaryotic organisms. PcGs inactivate or maintain the silenced state of their target chromatin by forming complexes, including Polycomb Repressive Complex 1 (PRC1) and 2 (PRC2). Three PRC2 complexes have been identified and characterized in Arabidopsis; of these, the EMF and VR...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Joshua S Mylne Lynne Barrett Federico Tessadori Stéphane Mesnage Lianna Johnson Yana V Bernatavichute Steven E Jacobsen Paul Fransz Caroline Dean

Vernalization is the acceleration of flowering by prolonged cold that aligns the onset of reproductive development with spring conditions. A key step of vernalization in Arabidopsis is the epigenetic silencing of FLOWERING LOCUS C (FLC), which encodes a repressor of flowering. The vernalization-induced epigenetic silencing of FLC is associated with histone deacetylation and H3K27me2 and H3K9me2...

بهمن یزدی صمدی ناصر خدابنده

اثر پنج سطح کود ازته (N) شامل 0‘ 40‘ 80ع120و160 کیلو ازت خالص درهکتار‘ دو سطح باکتری ریزوبیوم R (r0 بدون باکتری وr1 با باکتری) روی سه واریته (v) سویا به اسامی کلارک 63‘ لیندارین و ویلیامز مورد بررسی قرار گرفت. از یک طرح کرتهای دوبار خرد شده با 3 تکرار استفاده بعمل آمد. صفات مورد مطالعه عبارت بود از تعداد غده در ریشه ‘ تاریخ 50% گل‘ ارتفاع بوته‘ تعداد غلاف در بوته ‘ تعداد دانه در غلاف ‘ عملکرد ‘...

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