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Biology of Mudplantain (Heteranthera Reniformis Ruiz Et Pavon) and Its Control in Flooded Rice
In CIAT, Centro Internacional de Agricultura Tropical, located in Palmira, Colombia, a series of experiments were conducted to study the biology and control of mudplantain (Heteranthera reniformis Ruiz et Pavon), a member of Pontederiaceae family. Mudplantain is a perennial aquatic plant which reproduces by both seeds and stolons. It is found in rice in some areas of Colombia, especially in thin rice stands, and is spreading rapidly because of its resistance to the traditional rice herbicides. The biological aspects studied were: (a) life cycle; (b) effect of light reduction on growth; (c) effect of water depth on growth; (d) germination requirements; and (e) vegetative propagation ability. ...
Cooperation and Empire
While the study of “indigenous intermediaries” is today the focus of some of the most interesting research in the historiography of colonialism, its roots extend back to at least the 1970s. The contributions to this volume revisit Ronald E. Robinson’s theory of collaboration in a range of historical contexts by melding it with theoretical perspectives derived from postcolonial studies and transnational history. In case studies ranging globally over the course of four centuries, these essays offer nuanced explorations of the varied, complex interactions between imperial and local actors, with particular attention to those shifting and ambivalent roles that transcend simple binaries of colonizer and colonized.
1996 IUCN Red List of Threatened Animals
The 1994 IUCN Red List of Threatened Animals was a major advance on its predecessors in clarity of layout and amount of information presented. This is taken further in the 1996 edition, which is also the first global compilation to use the complete new IUCN Red List category system.
Retinal and Choroidal Imaging in Systemic Diseases
This book explains the underlying rationale for retinal and choroidal imaging in the context of systemic diseases. Various systemic diseases involve the eyes, and for some, the eyes could provide the first clue to their presence. Advances in posterior segment imaging have significantly improved our understanding of the pathophysiology and management of posterior segment diseases. However, imaging techniques like enhanced depth imaging, oximetry, adaptive optics, and retinal blood flowmetry have remained largely unexplored in connection with systemic diseases. Enhancing the available literature on the use of such imaging techniques for various systemic diseases, this handbook will help readers understand their pathomechanisms, supporting early diagnosis and more targeted therapeutic approaches. As such, it offers an essential resource for ophthalmologists, especially those with predominantly vitreo-retinal and uvea experience.
Biodiversity of Angola
This open access multi-authored book presents a 'state of the science' synthesis of knowledge on the biodiversity of Angola, based on sources in peer-reviewed journals, in books and where appropriate, unpublished official reports. The book identifies Angola as one of the most biologically diverse countries in Africa, but notes that its fauna, flora, habitats and the processes that drive the dynamics of its ecosystems are still very poorly researched and documented. This 'state of the science' synthesis is for the use of all students of Angola's biodiversity, and for those responsible for the planning, development and sustainable management of the country's living resources. The volume brings together the results of expeditions and research undertaken in Angola since the late eighteenth century, with emphasis on work conducted in the four decades since Angola's independence in 1975. The individual chapters have been written by leaders in their fields, and reviewed by peers familiar with the region.
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