نتایج جستجو برای: Azotobacter chroococcum

تعداد نتایج: 2239  

2017
Umesh K. Bageshwar Madhulika Srivastava Peddisetty Pardha-Saradhi Sangeeta Paul Sellamuthu Gothandapani Ranjeet S. Jaat Prabha Shankar Rajbir Yadav Dipak R. Biswas Polumetla A. Kumar Jasdeep C. Padaria Pranab K. Mandal Kannepalli Annapurna Hirendra K. Dasa

In our endeavor to improve the nitrogen fixation efficiency of a soil diazotroph that would be unaffected by synthetic nitrogenous fertilizers, we have deleted a part of the negative regulatory gene nifL and constitutively expressed the positive regulatory gene nifA in the chromosome of Azotobacter chroococcum CBD15, a strain isolated from the local field soil. No antibiotic resistance gene or ...

2013
MALIK ASIF

This study was carried out at the forest nursery of Department of Forestry, Faculty of Agriculture and Regional Research Station, Wadura SKUAST-K, Sopore, Kashmir during 2006 and 2007 to examine the role of live biofertilizers in litter decomposition and nutrient release in Salix fragilis under natural Salix stands. The experiment was laid in completely randomised design with three replications...

2016
S. Viscardi V. Ventorino P. Duran A. Maggio S. De Pascale M. L. Mora O. Pepe

This study aimed to select and characterize bacterial strains with multiple plant growth promotion properties able to tolerate drought and salinity stress in order to improve plant growth performance under abiotic stresses. Plant growth promoting activities were evaluated in 106 bacterial strains isolated by soil, compost, lignocellulosic biomasses and food matrices. Two strains A. chroococcum ...

Journal: :Agronomy 2022

Field research was conducted in Poland from 2019–2021 to determine the effect of bacteria Azospirillumlipoferum Br17 and Azotobacter chroococcum, as well companion red clover on total protein content yield grain spring barley cultivated a system organic agriculture. Two factors were examined field experiment: I. bacterial formulations: 1—control, 2—nitrogen-fixing (Azospirillumlipoferum Br17, c...

2007
Mirjana Jarak Rade Protić Snezana Janković Jovan Čolo

The aim of this research was to investigate the effect of inoculation (Azotobacter chroococcum and actinomycetes) and nitrogen mineral fertilizers (doses of 60 kg N ha-1 and 120 kg N ha-1) on the yield of wheat and on the number and activity of certain microorganisms in rhizospheric soil. The investigation was carried out in humogley soil with three wheat varieties. The variants of the experime...

2011
Arpana Mittal Neeraj Kumar Aggarwal Ramesh Chand Anand

Introduction and objective: The amount of nitrogen fixed by Azotobacter varied from 0.02-0.25 KgN/ha/d and has been reported to be variable with various physiological and environmental factors. The nitrogen fixation by mesophilic soil isolates and their analogue resistant mutants of Azotobacter chroococcum was compared with their thermotolerant mutants at three different temperatures (30 o C, 3...

ژورنال: علوم آب و خاک 2007
حسینعلی علیخانی, , سعیده رجایی, , فایز رئیسی, ,

Azotobacter chroococcum is an important PGPR (Plant Growth Promoting Rhizobacteria) producing compounds needed for plant growth. The aim of this research was to study the effects of different native strains of Azotobacter chroococcum on growth and yield of wheat under greenhouse counditions. Seeds of spring wheat (Triticum aestivum L. var. Pishtaz) were inoculated with some Azotobacter chroococ...

Journal: :به زراعی کشاورزی 0
مونا سروری دانشجوی کارشناسی ارشد زراعت، دانشکده کشاورزی، دانشگاه گیلان سید محمدرضا احتشامی عضو هیأت علمی، گروه زراعت، دانشکده کشاورزی، دانشگاه گیلان محمد ربیعی عضو هیأت علمی مؤسسه تحقیقات برنج کشور کاظم خاوازی عضو هیأت علمی مؤسسة تحقیقات آب و خاک

in order to evaluate effect of azotobacter chroococcum strains on yield, yield components and qualitative indices of winter rapeseed (brassica napus l.), an experiment was conducted during 2009-2010 growing season at research institute of rice in rasht. the experimental design was completely randomized block, with three replications. investigated treatments were including control (without seed ...

Journal: :Indian journal of experimental biology 2016
G Chennappa M K Naik C R Adkar-Purushothama Y S Amaresh M Y Sreenivasa

Azotobacter strains were isolated by serial dilution method and colonies were viscous, smooth, glistening, and brown to black colour on Jenson's N-free agar. Morphological and biochemical tests showed characteristic features of Azotobacter. Further, molecular analyses revealed the presence of different Azotobacter species viz., A. armeniacus, A. chroococcum, A. salinestris, A. tropicalis and A....

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2004
Joanna Rejman Arkadiusz Kozubek

We studied the effect of exogenous alkylresorcinols on the lipid metabolism of Azotobacter chroococcum. We observed that when 5-n-pentadecylresorcinol was present in the growth medium, the more endogenous alkylresorcinols were synthesized. Concurrently, a drop in the amount of phospholipids was observed. These changes were associated with increasing numbers of dormant cysts, while the number of...

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