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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   spring 2017 , Volume 9 , Number 28 ; Page(s) 31 To 47.

Effects of stabilizer water deficiet (biofertilizers and nano zinc oxide) on effective traits at accumulative assimilate of grain of triticale under water withholding

* University of Mohaghegh Ardabili, Ardabil, Iran
Biological fertilizers are one of the most important supply source of nutrients in sustainable agriculture. In order to study the effect of biofertilizers and Nano zinc oxide foliar application on yield and traits related to grain growth of triticale under water withholding condition, a factorial experiment was conducted based on randomized complete block design with three replications in research farming of Faculty of Agriculture Science, University of Mohaghegh Ardabili in 2014. Factors experiment were included water withholding in three levels (Full irrigation, irrigation to%50 of heading and booting stages), biofertilizers in four levels (nonuse of biofertilizer, G. mosseae, application of Azotobacter chrocoococum strain 5 + Psedomunas putida strain 186, application of PGPR+G. mosseae) and Nano zinc oxide in four levels (non-foliar application and foliar application of 0. 3, 0. 6 and 0. 9 g/lit). A two part linear model was used to quantifying the grain filling parameters. Results showed with increasing water limitation, yield, rate grain filling and the maximum of grain weight decreased. Means comparison showed that maximum of yield (663. 26 g/m2), rate grain filling (0. 00304 g/day), grain filling period (41. 5 day), effective grain filling period (25. 6 day) and the maximum of grain weight (0. 078 g) were obtained at application of PGPR+Mycorrhiza, foliar application of 0. 9 g/lit nano zinc oxide and full irrigation. Results showed that irrigation withholding in heading and booting stages respectively%22 and%42 reduced from grain yield and use of biofertilizers and nano zinc oxide compensated%52 and%53 respectively from yield reduction.
Keyword(s): Grain Filling,zinc,mycorrhiza,plant growth promoting rhizobacteria,linear model
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