نتایج جستجو برای: rain and drought

تعداد نتایج: 16836092  

Journal: :The Australian journal of rural health 2011
Craig Richard Hart Helen Louise Berry Anne Maree Tonna

OBJECTIVE NSW has just experienced its worst drought in a century. As years passed with insufficient rain, drought-related mental health problems became evident on farms. Our objective is to describe how, in response, the Rural Adversity Mental Health Program was introduced in 2007 to raise awareness of drought-related mental health needs and help address these needs in rural and remote NSW. Th...

2015
Venkataramana Sridhar Kenneth G. Hubbard Jinsheng You Eric D. Hunt VENKATARAMANA SRIDHAR KENNETH G. HUBBARD JINSHENG YOU ERIC D. HUNT

This paper examines the role of soil moisture in quantifying drought through the development of a drought index using observed and modeled soil moisture. In Nebraska, rainfall is received primarily during the crop-growing season and the supply of moisture from the Gulf of Mexico determines if the impending crop year is either normal or anomalous and any deficit of rain leads to a lack of soil m...

2013
Nawab Ali Nimat Ullah Farman Ullah Muhammad Adnan Zahoor Ahmed Swati

Drought stress is the most important factor and ever-growing problem limiting wheat (Triticum aestivum L.) productivity worldwide. Wheat has physiological mechanisms that enable them to adapt drought stress and this adaptation may vary among different genotypes. This study was performed to investigate the physiological responses in twelve wheat genotypes under drought stress to identify drought...

Journal: Desert 2018
M. Fatemi, M. Narangifard

Droughts are one of the most damaging climatic phenomena, and the most complex natural hazard  which affects the economy, agriculture, public health and environment in large areas. The aim of this study is to compare drought indicators derived from tropical rainfall measuring mission (TRMM) data in the south of Iran. Also the TRMM rainfall was considered, so as to investigate changes in the rai...

2014
Maren Dubbert Arndt Piayda Matthias Cuntz Alexandra C. Correia Filipe Costa e Silva Joao S. Pereira Christiane Werner

Semi-arid ecosystems contribute about 40% to global net primary production (GPP) even though water is a major factor limiting carbon uptake. Evapotranspiration (ET) accounts for up to 95% of the water loss and in addition, vegetation can also mitigate drought effects by altering soil water distribution. Hence, partitioning of carbon and water fluxes between the soil and vegetation components is...

2009
Sarwat Naz MIRZA Mohammad ATHAR Manzar QAYYUM

Arid and semi arid areas of Balochistan are characterized by low and erratic rainfall and are prone to drought conditions which normally occur every three to four years. Th e prevailing drought is one of the most severe in its magnitude as annual rain (60-150 mm) has been well below average for a continuous period of four to fi ve years in most parts of highland Balochistan. Results from a long...

2013
Fengxia Tian Jiangfeng Gong Jin Zhang Meng Zhang Guokun Wang Aixiu Li Wei Wang

A wheat stay-green mutant, tasg1, was previously generated via mutation breeding of HS2, a common wheat cultivar (Triticum aestivum L.). Compared with wild-type (WT) plants, tasg1 exhibited delayed senescence indicated by the slower degradation of chlorophyll. In this study, the stability of proteins in thylakoid membranes was evaluated in tasg1 under drought stress compared with WT plants in t...

A. Mostafaie A. Najaphy K. Moradpour, M. Bakhtiari S. Kiani

Drought stress in plants, the change (increase or decrease) in the production of plant proteins. Proteomics in recent years one of the most powerful tools that help us to study the changes in protein In order to investigate the proteome of wheat leaves in response to terminal drought, two genotypes susceptible and resistant wheat genotypes were evaluated under irrigated (non-stress) and rain-fe...

2017
Dongyun Ma Dexiang Sun Chenyang Wang Huina Ding Haixia Qin Junfeng Hou Xin Huang Yingxin Xie Tiancai Guo

To evaluate the physiological responses of wheat to zinc (Zn) fertilizer application under drought stress, pot, and field experiments were conducted on wheat plants grown under different soil moistures and treated with soil and foliar Zn applications. Photosynthetic characteristics, antioxidant content, Zn element concentration, and the transcription level of genes involved in antioxidant biosy...

2015
Roland Hasibeder Lucia Fuchslueger Andreas Richter Michael Bahn

Drought affects the carbon (C) source and sink activities of plant organs, with potential consequences for belowground C allocation, a key process of the terrestrial C cycle. The responses of belowground C allocation dynamics to drought are so far poorly understood. We combined experimental rain exclusion with (13)C pulse labelling in a mountain meadow to analyse the effects of summer drought o...

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