نتایج جستجو برای: intravarietal variability

تعداد نتایج: 172379  

Journal: Iranian Economic Review 2019

In this paper, we have examined the effect of climate variables on the yield average and variability of major grain crops (rice, maize, and wheat) in Iran from 1983 to 2014. For this purpose, we made use of the Just and Pope Production Function crop yields panel data. The results revealed that the influences of climate variables were different in the crops. The time trend positively influenced ...

By its frequency, colorectal cancer (CRC) has become a serious public health problem. BAT25 marker is included in the panel of five markers dedicated to the diagnosis of CCR microsatellite instability. The objective of this study was to evaluate the polymorphism and genetic diversity of the BAT25 marker in CRC cases in Senegal. This prospective study was performed on 22 CRC patients. After DNA ...

The research examined effect of climate variability on yield of the two dominant cool weather cereals (wheat and barley) in central highland and Arssi grain plough farming systems of Ethiopia using eight round unbalanced panel data (1994-2014). The stochastic frontier model result revealed that production inputs for producing wheat and barley in the two farming system had significant effect. Cr...

Middle and southern Iraq suffers from polluted soils due to crude oil, spilled on land, leakage from transmitting pipe networks, or petroleum products from refineries. Many researchers have studied pollution impacts on the soil in details, but there is a clear lack of investigation on the influence of crude oil on soil erodibility. Recent researches have investigated the influence of pollution ...

Hossein Negahban, Ismail Ebrahimi Takamjani , Mahyar Salavati, Masumeh Hessam , Mohammad Mehravar, Noureddin Karimi, Tabassom Ghanavati,

Objectives: Knowledge about gender differences in intra-limb coordination during walking provides insight into the adaptability of central nervous system for controlling gait in older adults. We assessed the variability and phase dynamic of the intra-limb coordination in older men and women during walking. Methods: Twenty two older people, 11 female and 11 male, participated in this study. T...

Akbar Shabani Ezatollah Farshadfar, Hossein Romena

Selection of genotypes based on high value of heritability and forecasted genetic conditions would be an effective method for improvement of wheat cultivars. The present investigation was carried out to estimate the genetic variability of agro-physiological characters using biometrical genetic techniques in 20 bread wheat genotypes under irrigated condition. For this purpose an experiment was c...

Akbar Shabani Ezatollah Farshadfar, Hossein Romena

Selection of genotypes based on high value of heritability and forecasted genetic conditions would be an effective method for improvement of wheat cultivars. The present investigation was carried out to estimate the genetic variability of agro-physiological characters using biometrical genetic techniques in 20 bread wheat genotypes under irrigated condition. For this purpose an experiment was c...

Journal: :اکو هیدرولوژی 0
عبدالرسول زارعی استادیار، گروه مرتع و آبخیزداری، دانشکدۀ کشاورزی، دانشگاه فسا محمد جواد امیری استادیار، گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه فسا

quality properties of groundwater is one of the major components which can used for water resources management. in this study, spatial variability of groundwater quality for drinking uses (schoeller standards) and agricultural uses (wilcox standards) was investigated during 1387-1392.in this research, we use information of 24 observation wells in fasa plain, to investigate the spatial variabili...

Journal: :پژوهش های زراعی ایران 0
محمد بنایان اول سعید خانی نژاد صادق قربانی ایمان حسام عارفی

many of precision farming studies have shown a high plant-to-plant variability for many crops. this study was conducted to evaluate the plant-to-plant variability of three medicinal crops in comparison with corn as a long term commercial species. thus a field experiment was performed in 2009-2010 in ferdowsi university of mashhad, research farm. in this experiment plant morphological characters...

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