نتایج جستجو برای: nitrate content

تعداد نتایج: 445171  

2012
Ahmad Bybordi

In order to evaluate effects of different ratios of ammonium and nitrate, on photosynthesis, respiration and fatty acid composition of canola under conditions of salt stress a greenhouse experiment was conducted in Agriculture Research Center of Eastern Azerbaijan, Iran on 2009. The experimental design was completely randomized design arranged in factorial. The first and second factor included ...

Journal: :The Plant cell 2011
Ya-Yun Wang Yi-Fang Tsay

This study of the Arabidopsis thaliana nitrate transporter NRT1.9 reveals an important function for a NRT1 family member in phloem nitrate transport. Functional analysis in Xenopus laevis oocytes showed that NRT1.9 is a low-affinity nitrate transporter. Green fluorescent protein and β-glucuronidase reporter analyses indicated that NRT1.9 is a plasma membrane transporter expressed in the compani...

ژورنال: کومش 2019
Abdolshahi , Anna , Ashhad , Sepideh , Ghobakhloo , Safiyeh , Heidariyeh , Ahmad , Monjazeb Marvdashti , Leila , Zeinali , Mohammad Kazem ,

Introduction: The safety of drinking water is one of the critical indexes concerning to health and hygiene of a society. Monitoring and controlling qualitative indices of water is of great importance. Therefore, this study aimed to investigate the quality of bottled water and urban drinking water in Semnan city with regard to the concentration of pollutant ions of nitrite and nitrate as well as...

Journal: :Plant physiology 1977
P C Chen D A Phillips

Root nodule senescence induced by nitrate and ammonium in Pisum sativum L. was defined by determining nitrogenase activity and leghemoglobin content with the acetylene reduction and pyridine hemochrome assays. Root systems supplied with 100 mm KNO(3) or 100 mm NH(4)Cl exhibited a decrease in nitrogenase activity followed by a decline in leghemoglobin content. Increasing the CO(2) concentration ...

2013
Shreya DebRoy Pallavi Mukherjee Sujata Roy Ashoke Ranjan Thakur Shaon RayChaudhuri

The draft genome sequence (5,868,741 bp) of a nitrate- and phosphate-removing Bacillus sp., WBUNB009, isolated from a raw sewage canal in nitrate broth (Himedia M439) with a G+C content of 34.9% is reported. It removes 60.23% nitrate and 96% phosphate within 16 h at 37°C.

Journal: :Plant physiology 2001
B Hirel P Bertin I Quilleré W Bourdoncle C Attagnant C Dellay A Gouy S Cadiou C Retailliau M Falque A Gallais

To enhance our understanding of the genetic basis of nitrogen use efficiency in maize (Zea mays), we have developed a quantitative genetic approach by associating metabolic functions and agronomic traits to DNA markers. In this study, leaves of vegetative recombinant inbred lines of maize, already assessed for their agronomic performance, were analyzed for physiological traits such as nitrate c...

2010
Katharina Wick Christine Heumesser Erwin Schmid

Nitrogen is an important input to agricultural production but also detrimentally a ects the environmental quality of air, soil and water. Identifying the determinants of nitrate pollution and in turn de ning sensible performance indicators to design, enforce and monitor regulatory policies is therefore of utmost importance. Using data on more than 1000 Austrian municipalities, we provide a deta...

C. A. Akoumianakis E. Constantopoulou H. C. Passam I. Karapanos S. A. Petropoulos,

The diurnal fluctuation of nitrate concentration in the foliage of three parsley subspecies (plain-leafed, curly-leafed and turnip rooted parsley) cultivated in the spring and autumn of two consecutive years was examined. Nitrogen was applied at 30 (Control), 75, 150, 300 mg kg-1 in both years, but with the addition of 450 mg kg-1 in year 2. Harvest was carried out at 08:30, 12:30 and 17:30 on ...

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