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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   winter 2018 , Volume 9 , Number 31 #r00474; Page(s) 0 To 0.
 
Paper: 

Effect of bio fertilizers and foliar applicationon of Nano zinc oxide on clorophyll content, grain filling period and grain yield of wheat (Triticum aestivum L. ) under water limitation

 
 
Author(s):  BABAEI KH., SEYED SHARIFI R.*, PIRZAD A.R.
 
* Faculty of Agricultural Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
 
Abstract: 
In order to study the effect of bio fertilizers and foliar application of nano zinc oxide on cholorophyll content, grain filling period and grain yield of wheat (Triticum aestivum L. ) under water limitation, a factorial experiment was conducted based on randomized complete block design with three replications in research greenhouse of faculty of Agricultural Sciences, University of Mohaghegh Ardabili in 2014. The experimental factors were included: water limitation in three levels [full irrigation as control, irrigation withholding at 50% of heading stage (ZGS 60); irrigation withholding at 50% of booting stage (ZGS 50)], seed inoculation with PGPR in four levels: non-inoculation, inoculation with Azotobacter chrocoocum strain 5, Azosperilium lipoferum strain OF, Pseudomonasputida strain 186) and foliar application of nano zinc oxide in four levels: non-foliar application and foliar application of nano iron oxide, nano zinc oxide and nano zinc oxide+ nano iron oxide). Means comparison showed that maximum of grain weight (0. 0689 g), rate grain filling (0. 0019 g. day-1), grain filling period (52. 63 days), effective grain filling period (34. 78 days) and grain yield of per plant (1. 21 g per plant) were obtained at application of Azotobacter, nano oxide of Zn+Fe and full irrigation. Minimum of traits (0. 0031 g, 0. 0017 g. day-1, 45. 46 days, 25. 39 days and 0. 18 g. plant-1 respectively) were obtained in non-inoculation, non-foliar application of nano oxide and irrigation to%50 of booting stage. In general, no-irrigation to 50% heading and booting stages decreased 65. 8% and 31. 6% of grain yield respectively, but the both application of bio-fertilizers and nano oxide of Zn+Fe were able to compensate 50. 7% and 41% of this reduction respectively. Based on the results, it seems that bio fertilizers and nano oxide of Zn+Fe application can be recommended for profitable wheat production under water limitation condition.
 
Keyword(s): Grain filling,PGP,foliar application,grain yield,wheat
 
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