نتایج جستجو برای: late drought

تعداد نتایج: 226034  

Journal: :Journal of Experimental Botany 2008
Stephan Marzin Robert Mihaly Janos Pauk Patrick Schweizer

Drought is a serious, worldwide problem for crop production and also affects yields of barley and wheat, together with other stressors such as frost, viral diseases, or fungal pathogens. Although a number of candidate genes have been identified by transcriptome approaches in recent years, only very few have been tested in functional assays for a beneficial effect on drought tolerance. Here, a t...

2013
Louise H. Comas Steven R. Becker Von Mark V. Cruz Patrick F. Byrne David A. Dierig

Geneticists and breeders are positioned to breed plants with root traits that improve productivity under drought. However, a better understanding of root functional traits and how traits are related to whole plant strategies to increase crop productivity under different drought conditions is needed. Root traits associated with maintaining plant productivity under drought include small fine root...

Journal: :Remote Sensing 2016
Miao Tian Pengxin Wang Jahangir Khan

This paper works on the agricultural drought forecasting in the Guanzhong Plain of China using Autoregressive Integrated Moving Average (ARIMA) models based on the time series of drought monitoring results of Vegetation Temperature Condition Index (VTCI). About 90 VTCI images derived from Advanced Very High Resolution Radiometer (AVHRR) data were selected to develop the ARIMA models from the er...

2014
Juergen Kreyling Constanze Buhk Sabrina Backhaus Martin Hallinger Gerhard Huber Lukas Huber Anke Jentsch Monika Konnert Daniel Thiel Martin Wilmking Carl Beierkuhnlein

Local adaptations to environmental conditions are of high ecological importance as they determine distribution ranges and likely affect species responses to climate change. Increased environmental stress (warming, extreme drought) due to climate change in combination with decreased genetic mixing due to isolation may lead to stronger local adaptations of geographically marginal than central pop...

2017
Benard Ngwene Susanne Neugart Susanne Baldermann Beena Ravi Monika Schreiner

Intercropping is widespread in small-holder farming systems in tropical regions and is also practiced in the cultivation of indigenous vegetables, to alleviate the multiple burdens of malnutrition. Due to interspecific competition and/or complementation between intercrops, intercropping may lead to changes in plants accumulation of minerals and secondary metabolites and hence, alter nutritional...

2009
C. Corley P. Timper

Aflatoxin contamination costs the U.S. peanut (Arachis hypogaea L.) industry over $20 million annually. The development of peanut cultivars with resistance to preharvest aflatoxin contamination (PAC) would reduce these costs. Screening techniques have been developed that can measure genetic differences in aflatoxin contamination and they have been used to identify accessions that exhibited rela...

Journal: :پژوهش های زراعی ایران 0
علی معصومی محمد کافی جعفر نباتی حمید رضا خزاعی کامران داوری محمد زارع مهرجردی

rainfall deficiency and the development of salinity in iran are the most important factors for using new salt and drought-resistant plants instead of conventional crops. kochia species have recently attracted the attention of researchers as a forage and fodder crop in marginal lands worldwide due to its drought and salt tolerant characteristics. this field experiment was performed at the salini...

2017
Bo Wang Tuo Chen Guobao Xu Guoju Wu Ignacio García-González

Due to the lack of available long-term climatic records, data related to past autumn precipitation variability throughout Northwest China, especially high-frequency variation, remains limited. In this study, it was found that inter-annual changes in Qinghai spruce radial growth were significantly and negatively (p < 0.05) correlated to inter-annual differences in precipitation during the late g...

خدامباشی, محمود, رحیمی, محمدحسن, شیران, بهروز, محمدی, شهرام, هوشمند, سعداله,

     Lentil with high protein (up to 28%), low price and good taste, have a very important role in the human diet and known as one of the most important plants in in semi-arid and dry regions. So it seems necessary to identifing the varieties that are drought tolerant. In order to identifying drought tolerant lines in 168 recombinant pure lines derived from crosses between Hindi variety of L368...

2015
Raul Bonal Marisa Hernández Josep M. Espelta Alberto Muñoz José M. Aparicio

The complexity of animal life histories makes it difficult to predict the consequences of climate change on their populations. In this paper, we show, for the first time, that longer summer drought episodes, such as those predicted for the dry Mediterranean region under climate change, may bias insect population sex ratio. Many Mediterranean organisms, like the weevil Curculio elephas, become a...

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