نتایج جستجو برای: water storage deficit

تعداد نتایج: 775990  

Journal: :علوم گیاهان زراعی ایران 0
مهدی سیدان جاسبی دانشجوی کارشناسی ارشد گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان پرویز احسان زاده دانشیار گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان

investigation of physiological responses to water deficit in sesame (sesamum indicum l.) genotypes can help to identify effective mechanisms of plant resistance to stress. therefore, chlorophyll content, proline, soluble carbohydrates, net photosynthesis rate, stomatal conductance, maximum quantum efficiency (fv/fm), plant height and shoot dry weight in a complete block factorial pot experiment...

2010
William Llovel Mélanie Becker Anny Cazenave Jean-François Crétaux Guillaume Ramillien

Global change in land water storage and its effect on sea level is estimated over a 7-year time span (August 2002 to July 2009) using space gravimetry data from GRACE. The 33 World largest river basins are considered. We focus on the year-to-year variability and construct a total land water storage time series that we further express in equivalent sea level time series. The short-term trend in ...

Journal: :پژوهش های تولید گیاهی 0
مونا پوردهقان دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس سید علی محمد مدرس ثانوی استاد گروه زراعت دانشگاه تربیت مدرس فائزه قناتی دانشیار دانشکده علوم گیاهی، دانشگاه تربیت مدرس سمیه کرمی دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس

in order to investigate the effect of hexaconazole (hex) on the increasing tolerance to water deficit stress of two soybean (glycine max l.) cultivars, an experiment was conducted in faculty of agronomy of tarbiat modares university as factorial experiment in randomized complete block design arrangement. factors examined in this study were included soybean cultivars (l17 and clark63), hex conce...

Journal: :Remote Sensing 2015
Sarah Abelen Florian Seitz Rodrigo Abarca del Rio Andreas Güntner

The mapping and forecasting of droughts and floods is an important potential field of application of global soil moisture and water storage products from satellites and models. Especially when extremes in near-surface soil moisture propagate into extremes in total water storage, agricultural production and water supply can be severely impacted. This study relates soil moisture from the WaterGAP...

2017
Shahzad Ali Yueyue Xu Xiangcheng Ma Irshad Ahmad Muhammad Kamran Zhaoyun Dong Tie Cai Qianmin Jia Xiaolong Ren Peng Zhang Zhikuan Jia

The ridge furrow (RF) rainwater harvesting system is an efficient way to enhance rainwater accessibility for crops and increase winter wheat productivity in semi-arid regions. However, the RF system has not been promoted widely in the semi-arid regions, which primarily exist in remote hilly areas. To exploit its efficiency on a large-scale, the RF system needs to be tested at different amounts ...

Journal: :تحقیقات مهندسی کشاورزی 0
نیازعلی ابراهیمی پاک استادیار بخش آبیاری و فیزیک خاک مؤسسه تحقیقات خاک و آب ابراهیم پذیرا استاد دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

this study was conducted to evaluate the impact of deficit irrigation and growth stages on yield and yield components of potatoes and water use efficiency. a field experiment was conducted at shahrekord agricultural research station over three years of crop seasons using a randomized complete block design with three replications. plots were assigned to five levels of deficit irrigation treatmen...

اله دادی, ایرج, اکبری, غلام علی , شیرانی راد, امیرحسین, غیاثوند غیاثی, امان , نعیمی, معصومه ,

In order to evaluation of zeolite and nitrogen fertilizer application effect on agronomic and physilogical traits of rapeseed (cv RGS003) under water deficit stress conditions, an experiment was conducted in factorial based on randomized complete block design with three replications during 2010 in Qazvin region, Iran. In the where, the two levels of irrigation factor as the normal irrigation (i...

Journal: :journal of tethys 0

today, saving and storing water are among the most critical and important issues which have attracted the world's attention. history of storing water in the form of ghanat and water reservoir by iranians goes back to ancient times. studies on this field show that benefiting from underground dams was one of the methods employed for exploiting water in past times. in countries like iran, due...

Journal: :journal of agricultural science and technology 2013
x. j. wang zh. k. jia l. y. liang sh. zh. kang

degraded soils in northwest china are mostly nonproductive due to imbalanced nutrient and inadequate water supply. the effects of manure application at three different rates (7.5, 15.0, and 22.5 t ha–1) combined with chemical fertilizers on soil water and water-use efficiency in maize [compared with chemical fertilizers (control)], under semi-arid conditions in dark loessial soil and over a per...

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