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Author: Mary R. Dunn
Publisher: Capstone
Published: 2017-08-01
Total Pages: 25
ISBN-13: 1515770559
DOWNLOAD EBOOKSimple text introduces readers to the science behind rainbows. Including why rainbows occur and what they are made of.
Author: Charles Joseph Eckenrode
Publisher:
Published: 1975
Total Pages: 442
ISBN-13:
DOWNLOAD EBOOKAuthor: Mark D. Schwartz
Publisher: Springer Science & Business Media
Published: 2011-04-28
Total Pages: 567
ISBN-13: 9400706324
DOWNLOAD EBOOKPhenology is the study of plant and animal life cycle events, which are triggered by environmental changes, especially temperature. Wide ranges of phenomena are included, from first openings of leaf and flower buds, to insect hatchings and return of birds. Each one gives a ready measure of the environment as viewed by the associated organism. Thus, phenological events are ideal indicators of the impact of local and global changes in weather and climate on the earth's biosphere. Assessing our changing world is a complex task that requires close cooperation from experts in biology, climatology, ecology, geography, oceanography, remote sensing and other areas. This book is a synthesis of current phenological knowledge, designed as a primer on the field for global change and general scientists, students and interested members of the public. With contributions from a diverse group of over fifty phenological experts, covering data collection, current research, methods and applications, it demonstrates the accomplishments and potential of phenology as an integrative environmental science.
Author: Theodore M. DeJong
Publisher: CABI
Published: 2021-12-30
Total Pages: 149
ISBN-13: 1800620861
DOWNLOAD EBOOKAnyone who observes fruit trees may wonder how or why they behave in specific ways. Some trees grow upright while others have a spreading habit. Some produce many flowers and small immature fruit only to drop most of the fruit later on; others grow more strongly on their sunny side than their shady side. It is common to ascribe such behavior to the tree as a whole and state that trees preferentially "allocate" resources to specific organs. However, this is the wrong approach to understanding tree functioning and behavior. Trees are not in control of what they do. What trees do and how they function is shaped by the individual organs that make up the tree, not by the tree as a whole. The genetic code only indirectly determines the habit, structure and behavior of a tree by defining the behavioral and functional limits of the component organs, tissues and cells. Unlike animals that have a mechanism for collective control of the whole organism - a central nervous system - trees (and plants in general) are more appropriately considered as collections of semi-autonomous organs. These organs are dependent on one another for resources, such as water, energy and nutrients, but control their own destiny. This book presents a clear set of integrative concepts for understanding the overall physiology and growth of temperate deciduous fruit trees. The emphasis is on overarching principles rather than detailed descriptions of tree physiology or differences among the numerous species of fruit trees. Although the focus is on deciduous fruit trees, many aspects apply to evergreen fruit trees and trees that grow naturally in unmanaged situations.
Author: Chuck A. Ingels
Publisher: UCANR Publications
Published: 2007
Total Pages: 212
ISBN-13: 1879906724
DOWNLOAD EBOOKDeveloped especially for use by backyard orchardists, rare fruit growers, and small-scale growers, The Home Orchard offers a comprehensive look at standard growing methods, as well as some innovative practices that enthusiasts have developed in recent years, some of which are uniquely suited to the small-scale grower. You will learn how trees grow, which species grow best in the different regions and soils, varieties from which to select, preparing the soil, planting, watering and fertilizing, pruning and grafting, thinning the fruit, diagnosing problems, controlling pests, and harvesting. You'll also find special attention given to organic and non-toxic pest management and fertilization methods. Key pests and diseases are identified and natural control methods are emphasized. Irrigation methods for the backyard grower are discussed and the difficult task of how often and how much water to apply is simplified. The focus is on giving the trees enough water but doing so in an efficient, water-saving manner. Included are hundreds of photographs and diagrams that clearly show how to produce the best crops. Photos of several practices, such as key budding and grafting methods, are depicted in step-by-step photos. No other publication provides this breadth and depth of coverage --
Author: Marcia Eames-Sheavly
Publisher:
Published: 2003
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKGrowing fruit at home can be an enjoyable activity that provides nutritious food for your family. This publication describes how to choose the best varieties; select sites; prepare soil; plant, prune and train shrubs and trees; and deal with diseases and pests.
Author: Betsy Maestro
Publisher: Harper Collins
Published: 1993-07-16
Total Pages: 36
ISBN-13: 0064451178
DOWNLOAD EBOOKApples/center Have you ever eaten part of a flower? You have if you have eaten an apple! Find out how an apple grows from bud to flower to fruit--ready for you to pick! CENTER Apples Have you ever eaten a part of a flower? You have if you have eaten an apple! Find out how an apple grows from bud to flower to fruit--ready for you to pick!
Author: Fernando Ramirez
Publisher: Springer
Published: 2015-01-09
Total Pages: 47
ISBN-13: 3319142003
DOWNLOAD EBOOKGlobal climate change is expected to produce increased carbon dioxide levels in the atmosphere, higher temperatures, aberrant precipitation patterns and a host of other climatic changes that would affect all life on this planet. This review article addresses the impact of climate change on fruit trees and the response of the trees to a changing environment. The response of fruit trees to increasing carbon dioxide levels, phenological changes occurring in the trees themselves due to increased temperature and the lower chilling hours especially in the temperate regions, ecophysiological adaptations of the trees to the changing climate, impact of aberrant precipitation, etc. are reviewed. There is very little data on the impact of rising CO2 levels on fruit tree performance or productivity including the temperate region. Based on a large number of observations on the phenology, there is reason to believe that the flowering and fruiting of most species have advanced by quite a few days, but with variations in different crops and on different continents. The chilling hours have also grown shorter in many regions, causing considerable reductions in yield for several species. In the tropics, there is very little work on fruit trees; however, the available data show that precipitation is a major factor regulating their phenology and yield. The ecophysiological adaptations vary from species to species, and there is a need to develop phenological models in order to estimate the impact of climate change on plant development in different regions of the world. More research is also called for to develop adaptation strategies to circumvent the negative impacts of climate change.
Author: Melissa K. Norris
Publisher: Harvest House Publishers
Published: 2020-01-07
Total Pages: 225
ISBN-13: 0736977627
DOWNLOAD EBOOKGrow a Year’s Worth of Food for Your Family Do something good for your loved ones by learning how to plant a garden that will yield wholesome, organic fruits and vegetables in surprisingly less space than you would think. Melissa K. Norris, fifth-generation homesteader and host of the popular Pioneering Today podcast, walks you through each step of the process, including how to decide which food crops are best for your area and family plan your garden to maximize the space you have protect your garden from common pests and diseases naturally determine when your fruits and vegetables are ready to be harvested improve soil health with simple techniques like crop rotation and backyard composting Sharing the same practices and techniques from her homestead, Melissa shows you how easy it can be to raise a year’s worth of produce at home. Simple-to-follow charts, worksheets, and photographs are provided throughout to help you through every phase of the gardening process. You can enjoy good eating and greater well-being for you and your family.
Author: Bruce Schaffer
Publisher: CRC Press
Published: 2018-05-04
Total Pages: 460
ISBN-13: 1351442783
DOWNLOAD EBOOKThese exciting new companion handbooks are the only ones of their kind devoted solely to the effects of environmental variables on the physiology of the world's major fruit and nut crops. Their cosmopolitan scope includes chapters on tropical and temperate zone species written by scientists from several continents. The influence of environmental factors, such as irradiance, temperature, water and salinity on plant physiology and on vegetative and reproductive growth, is comprehensively discussed for each crop. In addition to being a thorough and up-to-date set of textbooks, the organzation of the two volumes makes them an excellent reference tool. Each chapter focuses on a single crop, or a group of genetically or horticulturally related crop, and is appropriately divided into subsections that address individual environmental factors. Some chapters emphasize whole-plant physiology and plant growth and development, while other chapters feature theoretical aspects of plant physiology. Several chapters provide botanical background discussions to enhance understanding of the crop's response to its environment.
