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

Subject Areas : Journal of Plant Ecophysiology

یونس خیری زاده آروق ¹ , رئوف سیدشریفی ² , محمد صدقی ³ , مرتضی برمکی ⁴

1 - دانشجوی دکتری فیزیولوژی گیاهان زراعی دانشگاه محقق اردبیلی
2 - دانشیار گروه زراعت و اصلاح نباتات دانشگاه محقق اردبیلی
3 - دانشیار گروه زراعت و اصلاح نباتات دانشگاه محقق اردبیلی
4 - استادیار گروه زراعت و اصلاح نباتات دانشگاه محقق اردبیلی

Received: 2015-05-30 Accepted : 2015-09-17 Published : 2017-05-22

Keywords: zinc, Plant Growth Promoting Rhizobacteria, mycorrhiza, Grain filling, Linear Model,

Abstract :

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 (non-use of Mycorrhiza and PGPR, application of mycorrhiza, application of PGPR, application of PGPR+Mycorrhiza) and Nano zinc oxide in four levels (non-foliar application and foliar application of 0.3, 0.6 and 0.9 g/lit). 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.