The effect of nitrogen and phosphorus supplier bacteria on the characteristics of ‎tomato seedling

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Mashayekhi Kambiz; Ghorbani Dehkordi Ayoub; Mousavizadeh Saied Javad; Rahnama Kamran

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Journal Paper

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Journal: Iranian Journal of Horticultural Science Year:2021 | Volume:52 | Issue:1 Page(s): 113-123

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Title

The effect of nitrogen and phosphorus supplier bacteria on the characteristics of ‎tomato seedling

Author(s)

Mashayekhi Kambiz | Ghorbani Dehkordi Ayoub | Mousavizadeh Saied Javad | Rahnama Kamran | Issue Writer Certificate

Keywords

Anthocyanin

Antioxidant Enzymes

Azospirillum

Pseudomonas

transplant‎

Abstract

In order to study the effect of nitrogen and phosphorus supplier bacteria on tomato transplants characteristics, a factorial experiment in a completely randomized design with three replications, was conducted in a greenhouse of Gorgan University of Agricultural Sciences and Natural Resources, in March 2016. The first factor was biological fertilizer application at five levels (control, seed treatment of azosperilium, seed treatment of Pseudomonas, Azosperilium soil use, Pseudomonas soil use), and the second factor was irrigation at two levels (four times a day and two times a day). In this experiment, Azospirillium brasilense strain (P) and Pseudomonas fluorescens strain (p-169) were used. The results showed that the use of biofertilizers of Azospirilium brasilense and Pseudomonas fluorescens in soil application compare with control, improved germination percentage, stem length, stem and leave dry weight, root fresh weight, decreased the time to appearance of sixth leaf and increased Anthocyanins in the tissue (1.67, 2.9, 19.05, 9.25, 3.38 and 18.42%), respectively. So, Azosperilium brasilense and Pseudomonas fluorescens as soil use can be used in normal irrigation regimes to improve the quality, shorten the nursery period, reduce water stress and improving seedling tolerance to the transmission stress in the main field, in the production of tomato transplants.

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