Download or read book Deficit Irrigation Practices written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2002 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of improving water productivity, there is a growing interest in deficit irrigation, an irrigation practice whereby water supply is reduced below maximum levels and mild stress is allowed with minimal effects on yield. Under conditions of scarce water supply and drought, deficit irrigation can lead to greater economic gains than maximizing yields per unit of water for a given crop; farmers are more inclined to use water more efficiently, and more water-efficient cash crop selection helps optimize returns. However, this approach requires precise knowledge of crop response to water as drought tolerance varies considerably by species, cultivar and stage of growth. The studies present the latest research concepts and involve various practices for deficit irrigation. Both annual and perennial crops were exposed to different levels of water stress, either during a particular growth phase, throughout the whole growing season or in a combination of growth stages. The overall finding, based on the synthesis of the different contributions, is that deficit or regulated-deficit irrigation can be beneficial where appropriately applied. Substantial savings of water can be achieved with little impact on the quality and quantity of the harvested yield. However, to be successful, an intimate knowledge of crop behavior is required, as crop response to water stress varies considerably.

Download or read book On the Origins of Chloroplasts written by National Institute of Allergy and Infectious Diseases (U.S.) and published by North Holland. This book was released on 1982 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research a Record of Scholarship and Publication written by University of North Carolina at Chapel Hill. Graduate School and published by . This book was released on 1940 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photosynthesis Bibliography written by Zdenek Sesták and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bibi iograp hy includes papers in a l I fields of photosynthesis research - from stu dies of model biochemical and biophysical systems of t he photosynt hes is mechanism to primary prod ucti on studied by t he so-ca Ile d growth analysis . In addition to papers devoted enti rel y to photosynth es is, papers on other topics are inc luded if t hey con t ai n data on photosynthetic activity, photorespiration, chloroplast structure, chlo rophylland carotenoid synthesi s and destruction, eta., or if they conta in valuable methodological information (measurement of selected environmentaI factars, leaf area, eta.) . In many branches it has been difficult to defi ne th e limits of int erest for photosynthesis researchers. This problem has arisen e. g. in topics deal ing with t he transfer of gases, where - in addition to t he papers on ca rbon dioxide transfe r - so me pape rs on water vapour transfer are included, these being of general appl icat ion or bringing new approaches . On th e other hand, m any papers deal ing wit h the anatomy and phys io logy of stomata have been omitted, if the aspect of ca rbon dioxide or water vapour exchange has not been discussed.

Download or read book Eskimo of the Canadian Arctic written by Vallee Valentine and published by McGill-Queen's Press - MQUP. This book was released on 1971 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prebiotic Photochemistry written by Franz Saija and published by Royal Society of Chemistry. This book was released on 2021-06-09 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photochemistry is an important facet in the study of the origin of life and prebiotic chemistry. Solar photons are the unique source of the large amounts of energy likely required to initiate the organisation of matter to produce biological life. The Miller–Urey experiment simulated the conditions thought to be present on the early earth and supported the hypothesis that under such conditions complex organic compounds could be synthesised from simpler inorganic precursors. The experiment inspired many others, including the production of various alcohols, aldehydes and organic acids through UV-photolysis of water vapour with carbon monoxide. This book covers the photochemical aspects of the study of prebiotic and origin of life chemistry an ideal companion for postgraduates and researchers in prebiotic chemistry, photochemistry, photobiology, chemical biology and astrochemistry.

Download or read book A Natural Order of Cultural Adoption and Loss in Trinidad written by Frank Theodore Cloak and published by . This book was released on 1966 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abnormal Hemoglobins in Human Populations written by Frank B. Livingstone and published by Transaction Publishers. This book was released on with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on abnormal human hemoglobins (protein in blood that carries oxygen), has taught us about the inheritance, biochemistry, and distribution of these traits. Th is knowledge, coupled with mathematical research using computer models of population genetics, has enabled researchers to marry biological fact and genetic theory. This volume places medical understanding in an evolutionary framework. Using published data on the frequencies of abnormal hemoglobins in the world's populations, Livingston analyzes and interprets these frequencies in the light of world distribution of diff erent forms of diseases such as malaria. He further develops the genetic theory of the evolutionary homeostasis. Livingston discusses the relation of abnormal hemoglobins to endemic malaria and, shows how natural selection pressures explain the known distribution of these traits. Where non-coinciding distributions arise, the book presents other genetic, anthropological, evolutionary, and epidemiological evidence to explain these discrepancies. This classic work remains a useful sourcebook for professors and graduate students of anthropology, genetics, epidemiology, and hematology. Frank B. Livingstone was professor emeritus of biological anthropology at the University of Michigan. He recieved the Martin Luther King Award from the Southern Christian Leadership Conference for his groundbreaking research on sickle cell anemia and is the author of Data on the Abnormal Hemoglobin's and Glucose-Six-Phosphate Deficiency in Human Populations. Jonathan Marks is a professor of anthropology, at the University of North Carolina, Charlotte.

Download or read book Religion and Politics in Rural Central Java written by Robert R Jay and published by Hassell Street Press. This book was released on 2021-09-09 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Advances in Blood Grouping written by Alexander Solomon Wiener and published by Saunders. This book was released on 1961 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Society written by Bernard R. Blishen and published by Macmillan of Canada. This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Late Somatic Effects of Ionizing Radiation written by and published by . This book was released on 1982 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Pageant of Medieval Art and Life written by Richard McLanathan and published by Westminster John Knox Press. This book was released on 1966 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the Medieval period in terms of art and faith.

Download or read book The Catawba Nation written by Charles M. Hudson and published by University of Georgia Press. This book was released on 2007-12-01 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this reconstruction of the history of the Catawba Indians, Charles M. Hudson first considers the "external history" of the Catawba peoples, based on reports by such outsiders as explorers, missionaries, and government officials. In these chapters, the author examines the social and cultural classification of the Catawbas at the time of early contact with the white men, their later position in a plural southern society and gradual assimilation into the larger national society, and finally the termination of their status as Indians with the Bureau of Indian Affairs. This external history is then contrasted with the folk history of the Catawbas, the past as they believe it to have been. Hudson looks at the way this legendary history parallels documentary history, and shows how the Catawbas have used their folk remembrances to resist or adapt to the growing pressures of the outside world.

Download or read book The Triplet State written by A. B. Zahlan and published by Cambridge University Press. This book was released on 1967-11-02 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1967 volume brought together knowledge concerning the triplet state and defined the problems in need of solution.

Download or read book The Study of Personality written by Edward Norbeck and published by . This book was released on 1968 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Festschrift Ulrich Middeldorf written by Antje Kosegarten and published by . This book was released on 1968 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: