نتایج جستجو برای: seed resource depletion

تعداد نتایج: 348033  

Journal: :Science 2006
Stan Boutin Lucas A Wauters Andrew G McAdam Murray M Humphries Guido Tosi André A Dhondt

Mast seeding, the intermittent, synchronous production of large seed crops by a population of plants, is a well-known example of resource pulses that create lagged responses in successive trophic levels of ecological communities. These lags arise because seed predators are thought capable of increasing reproduction and population size only after the resource pulse is available for consumption. ...

2016
Weiqin Wang Shaobing Peng Qian Chen Junhao Mei Huanglin Dong Lixiao Nie

Mechanization and simplification are inevitable trends in agriculture production to decrease input demands and simultaneously improve resource use efficiency. Dry direct-seeded rice is a resource-saving cropping system and has been considered as a replacement for traditional transplanted rice. However, the poor establishment of dry direct-seeded early rice, primarily induced by chilling stress,...

2015
Samriti Midha Kanika Bansal Shikha Sharma Narinder Kumar Prashant P. Patil Vasvi Chaudhry Prabhu B. Patil

Plants are host to diverse microbiome that might have co-evolved since millions of years. This resident microbiota can act as extended genome by contributing in plant growth, development and protection from biotic and abiotic stresses. Rice (Oryza Sativa) is a staple food consumed by more than 50% of the world’s population. Herein we targeted the bacterial community associated with the healthy ...

To study the effects of both drought stress and seed zinc and iron concentrations on the photosynthesis, chlorophyll fluorescence, and proline and carbohydrate accumulations in soybean (Glycine max (L.) Merr. cv. M9) leaf, a split plot experiment was carried out in 2012 based on a randomized complete block design with three replications in greenhouse conditions at Yasouj University. Drought str...

2006
Hodjat Ghadimi Shantayanan Devarajan

An extensive literature concerned with optimal depletion of an exhaustible resource, with only a few exceptions, ignores the economy-wide and sectoral distribution effects of resource depletion. This paper presents a dynamic computable general equilibrium model to link the underlying natural resource base to economic performance. The model consists of an intra-temporal price endogenous model of...

2016
Lauran van Oers Jeroen Guinée

Depletion of abiotic resources is a much disputed impact category in life cycle assessment (LCA). The reason is that the problem can be defined in different ways. Furthermore, within a specified problem definition, many choices can still be made regarding which parameters to include in the characterization model and which data to use. This article gives an overview of the problem definition and...

2002
Shunsuke Managi James J. Opaluch Di Jin Thomas A. Grigalunas

A critical concern for continued growth of the world economy is whether technological progress can mitigate resource depletion. This paper measures depletion effects and technological change for offshore oil production in the Gulf of Mexico using a unique field-level data set from 1947-1998. The study supports the hypothesis that technological progress has mitigated depletion effects over the s...

خاوازی, کاظم, احتشامی, سید محمدرضا , زند, بهنام , عباسی, محمدرضا,

   In order to investigate two different strains of Pseudomonas putida on forage quantity and quality of three sorghum cultivars, an experiment was carried out at Agricultural and Natural Resource Research Center of Tehran Province (Varamin) during 2009-2010. The experiment design consisted of three randomized complete blocks in a factorial arrangement. Seed inoculation with Pseudomonas pu...

Drought stress in germination stage is one of most important factor that limit yield and growth of lentil in Iran. The heterotrophic seedling growth can be considered as the product of three components: initial seed weight, the fraction of seed reserves which are mobilized, and the conversion efficiency of mobilized seed reserves to seedling tissues. In order to investigate the effect of drough...

Journal: :Perspectives on psychological science : a journal of the Association for Psychological Science 2012
Michael Inzlicht Brandon J Schmeichel

According to the resource model of self-control, overriding one's predominant response tendencies consumes and temporarily depletes a limited inner resource. Over 100 experiments have lent support to this model of ego depletion by observing that acts of self-control at Time 1 reduce performance on subsequent, seemingly unrelated self-control tasks at Time 2. The time is now ripe, therefore, not...

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