نتایج جستجو برای: 52 and 75 percent field capacity
تعداد نتایج: 16993366 فیلتر نتایج به سال:
Drought and changes in weather conditions, cause damage and reduce their agricultural products. The fact that durum wheat, after common wheat or Simultaneous with that, is one of the major sources of food supplies, makes it a necessity to identify its drought tolerant species.This article reports an experiment on the impact of different levels of drought ( 5,10,20, 25 percent of field capacity)...
Global declines in insects have sparked wide interest among scientists, politicians, and the general public. Loss of insect diversity and abundance is expected to provoke cascading effects on food webs and to jeopardize ecosystem services. Our understanding of the extent and underlying causes of this decline is based on the abundance of single species or taxonomic groups only, rather than chang...
This research was carried out to assess the effect of drought stress on head branch dry weight, photosynthesis, essential oil yield and radical scavenging of rosemary (Rosmarinus officinalis L.) in Islamic Azad University, Shoushtar branch, Iran during 2010-2011.The experiments were carried out using complete randomized block design with four replications and drought stress levels included cont...
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
Deficit irrigation is one of the irrigation management methods that is used to increase Water Use Efficiency. Considering the internal plant adaptability characteristic to water shortage, Partial Root Drying method has been introduced in recent years. In this field research improvement of Water Use Efficiency for Soybean was determined. This experiment which was conducted at four furrow irrigat...
The effects of exposure to environmental tobacco smoke (passive smoking) on pulmonary function of non-smoking, healthy Iranian men (n = 167) and women (n = 108) were investigated. There were significant reductions in % predicted FEV1 (5.7%), forced vital capacity (FVC, 4.6%) and forced expiratory flow 25-75% (FEF25-75, 9.9%) among men exposed to cigarette smoke (n = 78). The adverse effect of p...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
The effects of Drought and salinity stress on the growth and chemical compositions pennyroyal(Mentha pulegium L.) plant were investigated. This experiment was carried out in a factorial-randomized design with four replications in controlled conditions and plantlets were subject to four soil moisture regimes (40, 60, 80 and 100 of field capacity (FC)) and five salt treatments with 0, 25...
(51) Int. Cl. GOIS 7102 (2006.01) GOIS13166 (2006.01) GOI S 13100 (2006.01) (52) U.S. Cl . ................ 342/60; 342/73; 342/74; 342/75; 342/81; 342/89; 342/175; 342/195; 342/368 (58) Field of Classification Search .................... 342/52, 342/58, 60, 73-81, 104-116, 159-164, 175, 342/192-197, 368-384, 89; 244/3.1-3.3; 343/753-755, 757-766, 772, 781 R, 782, 343/781 P, 781 CA, 832-840, 84...
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