Seed systems

Xem 1-20 trên 45 kết quả Seed systems
  • Tham khảo sách 'direct seeding research strategies and opportunities', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo sách 'fermented grain legunes seeds and nuts', kỹ thuật - công nghệ, kĩ thuật viễn thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Most information extraction systems either use hand written extraction patterns or use a machine learning algorithm that is trained on a manually annotated corpus. Both of these approaches require massive human effort and hence prevent information extraction from becoming more widely applicable. In this paper we present URES (Unsupervised Relation Extraction System), which extracts relations from the Web in a totally unsupervised way.

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  • Compared to other ecosystems, wetlands have received an exceptional amount of attention. Wetlands are valuable as sources, sink and transformers of a multitude of chemical, biological and genetic materials. They stabilize water supplies, clean polluted waters, protect shorelines, and recharge groundwater aquifers. They have increasingly become recognized for their unique ecological functions in the environment and are the focus of increased research by scientists and study programs by schools, communities, and nature centers.

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  • The editors would like to thank the governments of Canada (idrc, International Development Research Centre) and Switzerland (Swiss Agency for Development and Cooperation) for their generous fi nancial support of this book.

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  • Molecular markers from the transcribed region of the genome can offer potential for various applications in plant genotyping as they reveal polymorphisms that might be directly related to gene function. A novel marker system called Start Codon Targeted Polymorphism (SCoT) was described by Collard & Mackill (2009b), based on the observation that the short conserved regions of plant genes are surrounded by the ATG translation start codon (Sawant et al., 1999). The technique uses single primers designed to anneal to the flanking regions of the ATG initiation codon on both DNA strands.

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  • Second, the prospects for major child health reform will diminish as resources become increasingly scarce.Health care spending that is already hitting the “high- water mark” of 16 percent of U.S. gross domestic product (GDP) and predictably increasing in the face of the next wave of genomics-driven technological innova- tions will be swamped by the approaching “Silver Tsunami.

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  • From the authorities’ perspective, the trade-off between financial stability and efficiency will vary depending on a country’s status as home or host to cross-border banking groups. Home authorities might prefer a cross-border bank structure with stricter firewalls across parts of the group (the subsidiary model) when their banks expand into countries with weak economies and a risky business environment.

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  • Syngenta Seeds’ Gary Wietgrefe points out several of the impediments to widespread adoption of HTF corn (Ed Zdrojewski in BioFuels Journal, 2003b). To begin with, starch and ethanol yield vary by geographic region and from year to year, making an optimizing hybrid choice difficult. Further, choosing a hybrid that maximizes ethanol qualities may mean a tradeoff with yield and other potentially valuable qualities, such as protein content and even test weight (because of moisture). Testing equipment pres- ents its own challenges.

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  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài:"The mating system in a Scots pine clonal seed orchard in Poland...

    pdf9p toshiba8 11-10-2011 27 2   Download

  • Meeting report Genomic, chromosomal and allelic assessment of the amazing diversity of maize Virginia Walbot Address: Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA. E-mail: comment Published: 28 May 2004 reviews Genome Biology 2004, 5:328 The electronic version of this article is the complete one and can be found online at © 2004 BioMed Central Ltd A report on the 46th Annual Maize Genetics Conference, Mexico City, Mexico, 11-14 March 2004.

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  • Students should check their experiments every day for signs of growth. Care should be employed when examining the sponges under a stereomicroscope since the gemmules may take more than a day to attach firmly to the bottom of the well. Magnification at 30 X or less should be sufficient for the visualization of growth. As the experiments progress, students will be able to detect major growth abnormalities immediately, but should also look for more subtle developmental abnormalities (such as the absence of a well defined water vascular system).

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  • Reliable prediction of specific transcription factor target genes is a major challenge in systems biology and functional genomics. Current sequence-based methods yield many false predictions, due to the short and degenerated DNA-binding motifs.

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  • A 37 residue peptide, aglycin, has been purified from porcine intestine. The sequence is identical to that of residues 27–63 of plant albumin 1 B precur-sor (PA1B, chain b) from pea seeds. Aglycin resists in vitro proteolysis by pepsin, trypsin and Glu-C protease, compatible with its intestinal occur-rence and an exogenous origin from plant food.

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  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: " Mating system in a clonal Douglas fir (Pseudotsuga menziesii (Mirb) Franco) seed orchard. I. Gene diversity and structure...

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  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "Mating system in a clonal Douglas fir (Pseudotsuga menziesii (Mirb) Franco) seed orchard. II. Effective pollen dispersal...

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  • This meeting, organized by Richard Flavell (Ceres, Malibu, USA) and Rob Martienssen (Cold Spring Harbor Laboratory, USA), brought together a diverse group of speakers for a discussion of plant genome organization and the types of variation that exist between and within species. This report focuses on the consequences of this variation on phenotype, and the basis of this variation at the DNA and epigenetic

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  • In the thirteenth century the manorial system may be said to have been in its zenith; the description therefore of Cuxham Manor in Oxfordshire at that date is of special interest. According to Professor Thorold Rogers[64]there were two principal tenants, each holding the fourth part of a military fee. The prior of Holy Trinity, Wallingford, held a messuage, a mill, and 6 acres of land in free alms; i.e. under no obligation or liability other than offering prayers on behalf of the donor. A free tenant had a messuage and 33/4 acres, the rent of which was 3s. a...

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  • Abrus pulchellusseeds contain at least seven closely related and highly toxic type 2 ribosome-inactivating pulchellins, each consisting of a toxic A-chain linked to a sugar binding B-chain. In the present study, four pulchellin isoforms (termed P I, P II, P III and P IV) were isolated by affinity, ion exchange and chromatofocusing chromatographies, and investigated with respect to toxicity and sugar binding specificity.

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  • Chapter 30 - Plant diversity II: The evolution of seed plants. This chapter explain why pollen grains were an important adaptation for successful reproduction on land; list the four phyla of gymnosperms; describe the life history of a pine; indicate which structures are part of the gametophyte generation and which are part of the sporophyte generation;...

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