Advanced in Rootstock Breeding of Nut Trees: Objectives and Strategies

2021 ◽  
Author(s):  
Kourosh Vahdati ◽  
Saadat Sarikhani ◽  
Mohammad Mehdi Arab ◽  
Charles A. Leslie ◽  
Abhaya M. Dandekar ◽  
...  
Keyword(s):  
Economic Returns ◽  
Long Distance ◽  
Economic Production ◽  
Environmental Interactions ◽  
Current Consumption ◽  
Production And Consumption ◽  
The Face ◽  
Molecular Aspects ◽  
Horticultural Practice ◽  
Rootstock Breeding

The production and consumption of nuts are increasing in the world due to strong economic returns and the nutritional value of their products. With the increasing role and importance given to nuts (i.e., walnuts, hazelnut, pistachio, pecan, almond) in a balanced and healthy diet and in the prevention of various diseases, breeding of the nuts species has also been stepped up. Most recent fruit breeding programs have focused on scion genetic improvement. However, the use of locally adapted grafted rootstocks also enhanced the productivity and quality of tree fruit crops. Grafting is an ancient horticultural practice use in nut crops to manipulate scion phenotype and productivity and overcome biotic and abiotic stresses. There are complex rootstock breeding objectives and physiological and molecular aspects of rootstock–scion interactions in nut crops. In this review, we provide an overview of these, considering the mechanisms involved in nutrient and water uptake, regulation of phytohormones, and rootstock influences on the scion molecular processes, including long-distance gene silencing and trans-grafting. Understanding the mechanisms resulting from rootstock × scion × environmental interactions will contribute to developing new rootstocks with resilience in the face of climate change, but also of the multitude of diseases and pests and of the possible increase of their aggressiveness. They will also have to offer the premises of economic production, respectively yield and the quality, according to multiple destinations of nuts in the current consumption and food industry, but also the increasing exigencies of the consumer market and the profile industry.

scholarly journals Advances in Rootstock Breeding of Nut Trees: Objectives and Strategies

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2234
Author(s):  
Kourosh Vahdati ◽  
Saadat Sarikhani ◽  
Mohammad Mehdi Arab ◽  
Charles A. Leslie ◽  
Abhaya M. Dandekar ◽  
...  
Keyword(s):  
Economic Returns ◽  
Long Distance ◽  
Breeding Programs ◽  
Environmental Interactions ◽  
Production And Consumption ◽  
The Face ◽  
Molecular Aspects ◽  
Horticultural Practice ◽  
Rootstock Breeding

The production and consumption of nuts are increasing in the world due to strong economic returns and the nutritional value of their products. With the increasing role and importance given to nuts (i.e., walnuts, hazelnut, pistachio, pecan, almond) in a balanced and healthy diet and their benefits to human health, breeding of the nuts species has also been stepped up. Most recent fruit breeding programs have focused on scion genetic improvement. However, the use of locally adapted grafted rootstocks also enhanced the productivity and quality of tree fruit crops. Grafting is an ancient horticultural practice used in nut crops to manipulate scion phenotype and productivity and overcome biotic and abiotic stresses. There are complex rootstock breeding objectives and physiological and molecular aspects of rootstock–scion interactions in nut crops. In this review, we provide an overview of these, considering the mechanisms involved in nutrient and water uptake, regulation of phytohormones, and rootstock influences on the scion molecular processes, including long-distance gene silencing and trans-grafting. Understanding the mechanisms resulting from rootstock × scion × environmental interactions will contribute to developing new rootstocks with resilience in the face of climate change, but also of the multitude of diseases and pests.

scholarly journals Different Scenarios for the National Transmission Grid, Considering the Extensive Use of On-Site Renewable Energy in the Mexican Housing Sector

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 195
Author(s):  
Ivan Oropeza-Perez ◽  
Astrid H Petzold-Rodriguez
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Housing Sector ◽  
Distribution Grid ◽  
Smart Meters ◽  
Long Distance ◽  
Distribution Method ◽  
Transmission Grid ◽  
Production And Consumption ◽  
Transmission And Distribution

The Mexican national electricity transmission and distribution grid (SEN, initials in Spanish) is characterized by the high interconnection between its several electricity generation plants and the millions of final consumers throughout the country. This feature, which is seen first as an adequate transmission and distribution method for electricity between producer and consumer, has the inconvenience of being highly complex when renewable energy is introduced into the SEN. The random nature of renewable energy means that coordination between the producer and consumer is difficult; therefore, these energy sources are considered by the Mexican Federal Commission of Electricity (CFE, initials in Spanish) without priority in their generation and distribution. In this document, a solution for this is given by the consideration of on-site photovoltaic production in the Mexican residential sector, setting a straightforward relationship between production and consumption, neglecting the long-distance transmission, and freeing the transmission and distribution through the SEN at certain hours of the day. Different scenarios are studied, considering the level of penetration of this renewable energy technology into the housing sector. In this way, it is found that, if 80% of the total Mexican dwellings hold a photovoltaic roof, in some seasons of the year, a large part the total national demand can be fulfilled by the photovoltaic generation if certain systems—such as bidirectional smart meters—are applied. In this sense, the results show that, if 80% of the Mexican dwellings had a photovoltaic roof, there would be a money saving of 3418 Million USD and a mitigation of 25 million tons CO2e, for 2018. With this, it is concluded that renewable energy in Mexico could provide a much greater share if the electricity is produced in the same place where it will be consumed. This might be possible in Mexico due to the high interconnection of the transmission and distribution grid, which would manage the surplus electricity generation in the dwellings in a proper manner.

scholarly journals The Prospect of Eurasian Integration After the Great Global Economic Crisis of 2008-2020

2021 ◽  
pp. 19
Author(s):  
Vasily Koltashov
Keyword(s):  
Economic Crisis ◽  
Global Capitalism ◽  
Interstate Cooperation ◽  
Eurasian Economic Union ◽  
Production And Consumption ◽  
Global Economic Crisis ◽  
The Face ◽  
Economic Union ◽  
The Impact ◽  
The Relationship

The article examines the impact of the great global economic crisis of 2008-2020. on Eurasian integration, the relationship between the old and the new center of global capitalism. An analysis is made of what results, for what reasons and how the further construction of the Eurasian Economic Union (EAEU) will lead in the face of the unfriendliness of Western states and a simultaneous crisis of their strategy in the economy and politics. Namely: the formation of a large continental market, a stable system of interstate cooperation, the implementation of an interethnic protectionist policy that encourages production and consumption within the EAEU. The prospect of such development makes the project attractive for countries outside Eurasia, which leads to the birth of the Eurasian consensus as an international economic and political agenda.This will largely become decisive for the global economic agenda for 2021-2045, that is, for the period of a new upward wave according to N.D. Kondratyev.

Maize and Mississippian Beginnings

2017 ◽  
Author(s):  
Amber M. Vanderwarker ◽  
Dana N. Bardolph ◽  
C. Margaret Scarry
Keyword(s):  
Zea Mays ◽  
Social Systems ◽  
Plant Production ◽  
Cultural Tradition ◽  
Central Feature ◽  
Long Distance ◽  
Regional Patterns ◽  
Production And Consumption ◽  
Definition Of ◽  
The Relationship

The adoption and intensification of maize (Zea mays) farming has long been a topic of interest in Mississippian archaeology. At various times throughout the development and definition of “Mississippian” as a cultural tradition, maize has been cast as a central feature of Mississippian adaptation, alongside a suite of other traits that include long-distance exchange, platform mound building, and the development of ranked social systems. In (re-)considering the topic of Mississippian beginnings, we continue to interrogate the nature of the relationship between maize farming and Mississippian origins. Our archaeological review of regional patterns of plant production (archaeobotanical results) and plant consumption (isotopic results) reveals that Mississippians throughout southeastern and midwestern North America produced and consumed maize, but varied significantly in their levels of production and consumption.

Structural Change and the Environment

2021 ◽  
pp. 622-647
Author(s):  
Giovanni Marin ◽  
Massimiliano Mazzanti
Keyword(s):  
Sustainable Development ◽  
Structural Change ◽  
Value Chain ◽  
Consumption Patterns ◽  
Specific Reference ◽  
Empirical Results ◽  
Sustainability Analysis ◽  
Production And Consumption ◽  
The Face ◽  
The Empirical Analysis

The objective of this chapter is to evaluate the contribution of structural change to production and consumption patterns with respect to sustainability analysis, with specific reference to sustainable production and consumption issues. In the face of delocalization processes and value chain restructuring, the analysis of sustainable development should instead provide both consumption and production dimensions. In the empirical analysis, the authors consider four measures of emission intensity: consumption-based emissions, consumption-based emissions due to structural change, production-based emissions, and production-based emissions due to structural change. The empirical results suggest a moderate contribution of structural change to decreases in overall emissions.

Taking Credit

2017 ◽  
Vol 69 (4) ◽  
pp. 640-675 ◽  
Author(s):  
John S. Ahlquist ◽  
Ben W. Ansell
Keyword(s):  
Global Financial Crisis ◽  
The United States ◽  
Left Wing ◽  
Credit Expansion ◽  
Relative Consumption ◽  
Long Run ◽  
Current Consumption ◽  
The Face ◽  
Political Left ◽  
The Global Financial Crisis

Several recent studies link rising income inequality in the United States to the global financial crisis, arguing that US politicians did not respond to growing inequality with fiscal redistribution. Instead, Americans saved less and borrowed more to maintain relative consumption in the face of widening economic disparities. This article proposes a theory in which fiscal redistribution dampens the willingness of citizens to borrow to fund current consumption. A key implication is that pretax inequality will be more tightly linked with credit in less redistributive countries. The long-run partisan composition of government is, in turn, a key determinant of redistributive effort. Examining a panel of eighteen OECD democracies, the authors find that countries with limited histories of left-wing participation in government are significantly more likely see credit expansion as prefisc inequality grows compared to those in which the political left has been more influential.

scholarly journals Ecophysiology of avian migration in the face of current global hazards

2012 ◽  
Vol 367 (1596) ◽  
pp. 1719-1732 ◽  
Author(s):  
Marcel Klaassen ◽  
Bethany J. Hoye ◽  
Bart A. Nolet ◽  
William A. Buttemer
Keyword(s):  
Global Change ◽  
Migratory Birds ◽  
High Energy ◽  
Change Processes ◽  
Negative Consequences ◽  
Long Distance ◽  
Physiological Limits ◽  
The Face ◽  
Abiotic And Biotic Factors ◽  
The Impact

Long-distance migratory birds are often considered extreme athletes, possessing a range of traits that approach the physiological limits of vertebrate design. In addition, their movements must be carefully timed to ensure that they obtain resources of sufficient quantity and quality to satisfy their high-energy needs. Migratory birds may therefore be particularly vulnerable to global change processes that are projected to alter the quality and quantity of resource availability. Because long-distance flight requires high and sustained aerobic capacity, even minor decreases in vitality can have large negative consequences for migrants. In the light of this, we assess how current global change processes may affect the ability of birds to meet the physiological demands of migration, and suggest areas where avian physiologists may help to identify potential hazards. Predicting the consequences of global change scenarios on migrant species requires (i) reconciliation of empirical and theoretical studies of avian flight physiology; (ii) an understanding of the effects of food quality, toxicants and disease on migrant performance; and (iii) mechanistic models that integrate abiotic and biotic factors to predict migratory behaviour. Critically, a multi-dimensional concept of vitality would greatly facilitate evaluation of the impact of various global change processes on the population dynamics of migratory birds.

Prestige and Prejudice: The Role of Long Distance Big Game Hunting as an Optimal Foraging Decision

2012 ◽  
Vol 77 (1) ◽  
pp. 168-178 ◽  
Author(s):  
Deanna N. Grimstead
Keyword(s):  
Central Place ◽  
Central Place Foraging ◽  
Economic Returns ◽  
Long Distance ◽  
Return Rates ◽  
Small Game ◽  
Game Hunting ◽  
Big Game Hunting ◽  
Foraging Decision

AbstractSignaling theory has much to offer anthropology and archaeology, which is in part why there is an increasing number of applications and healthy debates surrounding how best to apply it. One of those debates surrounds whether big game hunting is a costly signal or simply an aspect of efficient foraging. Grimstead (2010) contributed to this debate by showing that long-distance big-game hunting (greater than 100 km roundtrip) produces higher caloric return rates than does local small-game hunting, despite increased costs of travel and transport for the former. Whittaker and Carpenter (this issue) present a model that also suggests long-distance big-game hunting produces higher economic returns than local foraging but only up to about 50 km. This paper provides further details on the tenets of the Grimstead (2010) paper in response to criticisms by Whittaker and Carpenter (this issue), and then uses a previously published central place foraging model (Cannon 2003) to show that another model also shows long-distance big-game hunting over a distance greater than 100 kilometers roundtrip produces higher returns than local foraging.

scholarly journals Marine biology on a violated planet: from science to conscience

2020 ◽  
Vol 20 ◽  
pp. 1-13 ◽  
Author(s):  
G Bearzi
Keyword(s):  
Environmental Sustainability ◽  
Marine Biology ◽  
Marine Conservation ◽  
Modern World ◽  
Human Society ◽  
Scientific Disciplines ◽  
Production And Consumption ◽  
The Face ◽  
Imaginary Line ◽  
Climate Crisis

Humanity’s self-ordained mandate to subdue and dominate nature is part of the cognitive foundation of the modern world—a perspective that remains deeply ingrained in science and technology. Marine biology has not been immune to this anthropocentric bias. But this needs to change, and the gaps between basic scientific disciplines and the global conservation imperatives of our time need to be bridged. In the face of a looming ecological and climate crisis, marine biologists must upgrade their values and professional standards and help foster the radical transformation needed to avert a climate and ecological breakdown. To prevent some of the damage, they must cross the imaginary line that separates science from science-based activism and consciously pursue the health and durability of human and natural communities. To this end, they can (1) develop compelling narratives that engage human society, with emphasis on care for the wild living world; (2) move beyond marine conservation on paper and avoid self-serving complaisance; (3) advocate constructive changes in market and human behaviour, not only by documenting damage but also by clarifying how the extraction, production and consumption system can be steered away from practices that harm nature; (4) push for systemic change in politics through individual and collective efforts, supporting environmental activism and those who demand biosphere-saving policies; and (5) endorse a more ecocentric and holistic world vision, relinquishing contempt for spiritual wisdom and liaising with (or at least not dismissing) spiritual traditions that encourage equality, self-restraint and environmental sustainability.

scholarly journals Queering the media mix: The female gaze in Japanese fan comics

2015 ◽  
Vol 20 ◽  
Author(s):  
Kathryn Hemmann
Keyword(s):  
Marketing Strategies ◽  
Physical Relationship ◽  
International Media ◽  
Male Characters ◽  
Production And Consumption ◽  
Female Gaze ◽  
Narrative Production ◽  
The Face ◽  
The Media ◽  
Media Mix

The Japanese expression "media mix" refers to multimedia marketing strategies for entertainment franchises. Although such franchises are commonly understood as being controlled by large corporations, the fans of these media properties make significant contributions to the mix, often expanding on the central themes of the source texts and queering them by rendering their subtexts explicit. In dōjinshi, or self-published fan comics, female readers create their own interpretations of stories, characters, and relationships in narratives targeted at a male demographic. In BL (boys' love) fan comics, which are notable for their focus on a romantic and often physical relationship between two male characters, the female gaze has created its own overtly homoerotic readings and interpretations that creatively subvert the phallocentrism implicit in many mainstream narratives. The interactions between texts and their readers found in dōjinshi illustrate how cycles of narrative production and consumption have changed in the face of active fan cultures. Because of the closely interrelated nature of the components of increasingly international media mixes, communities of fans have the potential to make positive and progressive contributions to the media mix ecosystem.

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