نتایج جستجو برای: water stress

تعداد نتایج: 964068  

Abdolsamad Kelidari Hooshang Farajee Leila Gharib Ardakani,

In order to investigate drought stress and plant density the yield, yield components and protein of spotted bean grain (cultivar Talash), an experiment was carried out as split plots in randomized complete blocks with three replications in Yasouj, in 2012. Factors of the test including irrigation in three levels; without stress (control treatment), water stress in vegetative stage (interrupting...

Journal: :علوم گیاهان زراعی ایران 0
محمدعلی ابوطالبیان استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا، همدان نوشین فخیمی پایدار دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا، همدان

to study the effects of phosphate and zinc sulfate fertilizers application methods on the yield and yield components of maize under water stress a randomized complete block with split plot factorial arrangement with three replications at research farm of the bu ali sina university was conducted in 2014. three levels of irrigation after 60, 90 and 120 mm evaporation from evaporation a pan was as...

Journal: :Tree physiology 1996
M E Berman T M DeJong

Effects of water stress on fruit fresh and dry weights were investigated in peach trees, Prunus persica (L.) Batsch., with varying crop loads: light, moderate and heavy. In well-watered controls, tree water status was independent of crop load. In trees receiving reduced irrigation, the degree of water stress increased with increasing crop load. Water stress induced fruit fresh weight reductions...

Among the crops, cereals have been special important and triticale is the most successful man made cereal. In present research, water deficit stress effects on 19 triticale genotypes (X Triticosecale wittmack) and two wheat cultivars (Triticum aestivum), Shiraz (sensitive to water deficit stress) and Kavir (tolerant to water deficit stress) were tested. Therefore, two separate field experiments...

2005
PATRICK J. MORAN ALLAN T. SHOWLER

Water deÞcit and shade stress in weed-infested crops could alter plant growth and biochemistry and feeding and oviposition by the beet armyworm, Spodoptera exiguaHübner. Palmer amaranthpigweed,Amaranthus palmeriS.Wats.,was grownunder 25%of fullwatering(waterdeÞcit), 30% of full light (shade), or combined stress. All treatments decreased plant height andweight. Shade and combined stresses decrea...

Journal: :Tree physiology 1997
J Marsal J Girona

Effects of water deficits on leaf turgor maintenance processes were analyzed for pear trees (Pyrus communis L. cv. "Barlett") grown in 120-liter containers. Four irrigation treatments were applied: a well-watered control treatment, a spring water stress cycle (Sp), a summer water stress cycle (Su), and a spring plus summer water stress cycle (Sp + Su). For the Sp treatment, water application wa...

Journal: :Pakistan journal of biological sciences : PJBS 2008
Zinolabedin Tahmasebi Sarvestani Hemmatollah Pirdashti Seyed Ali Mohammad Modarres Sanavy Hamidreza Balouchi

A field experiment was conducted during 2001-2003 to evaluate the effect of water stress on the yield and yield components of four rice cultivars commonly grown in Mazandaran province, Iran. In northern Iran irrigated lowland rice usually experiences water deficit during the growing season include of land preparation time, planting, tillering stage, flowering and grain filing period. Recently d...

Journal: :Environmental science & technology 2018
Sally Entrekin Anne Trainor James Saiers Lauren Patterson Kelly Maloney Joseph Fargione Joseph Kiesecker Sharon Baruch-Mordo Katherine Konschnik Hannah Wiseman Jean-Philippe Nicot Joseph N Ryan

Demand for high-volume, short duration water withdrawals could create water stress to aquatic organisms in Fayetteville Shale streams sourced for hydraulic fracturing fluids. We estimated potential water stress using permitted water withdrawal volumes and actual water withdrawals compared to monthly median, low, and high streamflows. Risk for biological stress was considered at 20% of long-term...

2012
Dimitra A. Loka Derrick M. Oosterhuis

Water is the most limiting factor for plant growth and crop productivity (Kramer, 1983), and water-deficit stress adversely affects crop growth and yield throughout the world (Boyer, 1982). Crop yields are being reduced by drought and the increasing scarcity of water for irrigation, and changing world climatic trends may increase the severity of the problem (Le Houerou, 1996). Water availabilit...

Journal: :علوم باغبانی 0
روح اله عامری مجید عزیزی علی تهرانی فر وحید روشن سروستانی

in order to study the effect of natural antitranspirant compound and water stress on growth, development and essential oil content of ocimumbasilicum a factorial experiment based on completely randomized design with three replicates was conducted. 3 levels of water stress (500 as control, 375 and 250 ml/day) and 3 antitranspirant compound (chitosan, plantago mucilage and psyllium mucilage) in 3...

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