The effect of putrescine foliar application on physiologic characteristics of wheat Tiriticum aestivum var sw-82-9 under cut irrigation stress

Subject Areas :

zahra  Karimi ¹ (Department of agronomy, Varamin Branch Islamic Azad University, Varamin - Pishva, Varamin,Tehran- Iran)
Hamid Reza  Tohidi Moghadam ² (Department of Agronomy, Faculty of Agriculture, Islamic Azad University Varamin- Pishva, Varamin-Iran)
Pourang  Kasraee ³ (Department of Agronomy, Faculty of Agriculture, Islamic Azad University Varamin- Pishva, Varamin-Iran)

Received: 2016-01-23 Accepted : 2016-07-02 Published : 2016-05-21

Keywords: Wheat, Water deficit stress, putrescine, Protein content, Electrical Conductivity,

Abstract :

This experiment was conducted to effect of putrescine foliar application on physiologic characteristics of wheat (Tiriticum aestivum var sw-82-9) under water deficit stress as split pilot arrangement and randomized complete block design with three replication ( 12 plots) at Islamic Azad University farm. The main split including four irrigation levels: normal irrigation, withholding irrigation in stem elongation , withholding irrigation in flowering and withholding irrigation in grain filling and the secondary plot including foliar application  with purred water, Putrescine foliar applications with 75 and 150 ppm.The maximum protein yield and percent was in grain filling and foliar application of putrescine (150 ppm) with 509.8 kg.ha-1  and 8.61% whereas minimum protein yield was in withholding irrigation in flowering with 387.03 and 6.5 % .Withholding irrigation in different stages of plant lifespan decreased chlorophyll a,b , a+b contents and relative water contents whereas increased protein content, proline and electrical conductivity. Putrescine foliar applications with 150 ppm improved all the mentioned characteristics to normal irrigation