Fifth International Symposium on Apricot Culture and Decline PDF Download
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Author:
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Category : Apricot
Languages : en
Pages : 718
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Book Description
Author:
Publisher:
ISBN:
Category : Apricot
Languages : en
Pages : 718
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Book Description
Author:
Publisher:
ISBN:
Category : Plants
Languages : en
Pages : 400
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Book Description
Author:
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ISBN:
Category : Botany
Languages : en
Pages : 410
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Book Description
Author: J. Esteban Hernández Bermejo
Publisher: Food & Agriculture Org.
ISBN: 9789251032176
Category : Business & Economics
Languages : en
Pages : 372
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Book Description
About neglected crops of the American continent. Published in collaboration with the Botanical Garden of Cord�ba (Spain) as part of the Etnobot�nica92 Programme (Andalusia, 1992)
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251098603
Category : Nature
Languages : en
Pages : 244
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Book Description
Cactus plants are precious natural resources that provide nutritious food for people and livestock, especially in dryland areas. Originally published in 1995, this extensively revised edition provides fresh insights into the cactus plant’s genetic resources, physiological traits, soil preferences and vulnerability to pests. It provides invaluable guidance on managing the resource to support food security and offers tips on how to exploit the plant’s culinary qualities.
Author: Roberto Rodríguez
Publisher: Springer Science & Business Media
ISBN: 1468457608
Category : Science
Languages : en
Pages : 425
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Book Description
For many, the terms aging, maturation and senescence are synonymous and used interchangeably, but they should not be. Whereas senescence represents an endogenously controlled degenerative programme leading to plant or organ death, genetiC aging encompasses a wide array of passive degenerative genetiC processes driven primarily by exogenous factors (Leopold, 1975). Aging is therefore considered a consequence of genetiC lesions that accumulate over time, but by themselves do not necessarily cause death. These lesions are probably made more severe by the increase in size and complexity in trees and their attendant physiology. Thus while the withering of flower petals following pollination can be considered senescence, the loss of viability of stored seeds more clearly represents aging (Norden, 1988). The very recent book "Senescence and Aging in Plants" does not discuss trees, the most dominant group of plants on the earth. Yet both angiospermic and gymnospermic trees also undergo the above phenomena but less is known about them. Do woody plants senesce or do they just age? What is phase change? Is this synonymous with maturation? While it is now becoming recognized that there is no programmed senescence in trees, senescence of their parts, even in gymnosperms (e. g. , needles of temperate conifers las t an average of 3. 5 years), is common; but aging is a readily acknowledged phenomenon. In theory, at least, in the absence of any programmed senescence trees should -live forever, but in practice they do not.
Author: C.V. Cavalloro
Publisher: CRC Press
ISBN: 9789061916369
Category : Science
Languages : en
Pages : 238
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Book Description
This volume contains the proceedings of a meeting organised by the Commission of the European Communities and the International Organisation for Biological ad Integrated Control. It includes full communications by experts from 17 different countries and 3 international organisations. The work of the IOBC/WPRS Working Group 'Fruit flies of economic importance is also reported.
Author: Javier Abadía
Publisher: Springer Science & Business Media
ISBN: 9401105030
Category : Science
Languages : en
Pages : 389
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Book Description
Iron is a major constituent of the earth crust. However, under alkaline conditions commonly found in arid and semi-arid environments iron becomes unavailable to plants. When plants are affected by a shortage of iron their leaves become yellow (chlorotic), and both plant growth and crop yield are reduced. The roots of plants affected by iron deficiency may develop a series of responses directed to improve iron uptake, such as increased proton excretion and iron reduction capabilities or excretion of iron chela tors called siderophores. Iron deficiency affects major crops worldwide, including some of major economic importance such as fruit trees and others. Correction of iron deficiency is usually implemented through costly application of synthetic chelates. Since these correction methods are very expensive, the competitivity of farmers is often reduced and iron deficiency may become a limiting factor for the maintenance, introduction or expansion of some crops. In spite of the many years devoted to the study of iron deficiency, the knowledge of iron deficiency in soils and plants is still fragmentary in many aspects. We have only incomplete information on the processes at the molecular level that make some plant species and cultivars unable to take and utilize iron from the soil, whereas other plants grow satisfactorily under the same conditions.
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Category : Technology & Engineering
Languages : en
Pages : 648
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Book Description
Sterile-male technique field programmes; Economics of the sterile-male technique; Computer models and applications of the sterile-male technique; Control of fruit flies by the sterile-male technique; Effects of sterilization by radiation and chemicals; Genetic mechanisms of insect control; Control of blood-sucking insects by the sterile-male technique; Control of lepidoptera by the sterile-male technique.
Author: Shri Mohan Jain
Publisher: Springer Science & Business Media
ISBN: 0387712011
Category : Science
Languages : en
Pages : 654
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Book Description
Tree species are indispensable to support human life. Due to their long life cycle and environmental sensitivity, breeding trees to suit day-to-day human needs is a formidable challenge. Whether they are edible or industrial crops, improving yield under optimal, sub-optimal and marginal areas calls for uni?ed efforts from the s- entistsaroundtheworld. Whiletheuniquenessofcoconutaskalpavriksha(Sanskr- meaning tree-of-life) marks its presence in every continent from Far East to South America, tree crops like cocoa, oil palm, rubber, apple, peach, grapes and walnut prove their environmental sensitivity towards tropical, sub-tropical and temperate climates. Desert climate is quintessential for date palm. Thus, from soft drinks to breweries to beverages to oil to tyres, the value addition offers a spectrum of pr- ucts to human kind, enriched with nutritional, environmental, ?nancial, social and trade related attributes. Taxonomically, tree crops do not con?ne to a few families, but spread across a section of genera, an attribute so unique that contributes immensely to genetic biodiversity even while cultivated at the commercial scale. Many of these species in?uence other ?ora to nurture in their vicinity, thus ensuring their integrity in p- serving the genetic biodiversity. While wheat, rice, maize, barley, soybean, cassava andbananamakeup themajorfoodstaples,manyfruittreespeciescontributegreatly tonutritionalenrichment inhumandiet. Theediblepartofthesespeciesisthesource of several nutrients that makes additives for the daily diet of humans, for example, vitamins, sugars, aromas and ?avour compounds, and raw material for food proce- ing industries. Tree crops face an array of agronomic and horticultural problems in propagation, yield, appearance, quality, diseases and pest control, abiotic stresses and poor shelf-life.
