Paper Information

Journal:   JOURNAL OF PLANT PROCESS AND FUNCTION   SPRING 2016 , Volume 5 , Number 15; Page(s) 195 To 203.
 
Paper: 

EVALUATION THE EFFECT OF AIRBORNE DUST ON PHYSIOLOGICAL CHARACTERISTICS AND YIELD OF DIFFERENT WHEAT CULTIVARS (TRITICUM SP.)

 
 
Author(s):  SHAHBAZI TAYEBEH, SAIEDI MOHSEN, JALALI HONARMAND SAEED, NOSRATTI IRAJ*
 
* DEPARTMENT OF AGRONOMY AND PLANT BREEDING, FACULTY OF SCIENCE AND AGRICULTURAL ENGINEERING, RAZI UNIVERSITY, KERMANSHAH, IRAN
 
Abstract: 

To evaluate the effect of airborne dusts on some physiological characteristics and yield of different wheat cultivars, a field experiment was conducted at Research Farm of Razi University, Kermanshah, Iran in 2013. The evaluated treatments included: 1) shoot washing-fin two levels: washing and unwashing) and 2) three wheat cultivars (Pishgam, Zarin and Behrang). In this research, characteristics such as grain yield and its components and relative water content, green area, greenness index, soluble protein, stomatal conductance and temperature of flag leaf were evaluated. Results of variance analysis showed that, airborne dusts caused significant reduction in grain yield (380 kg ha-1) and biomass (560 kg ha-1) of wheat cultivars. Pishgam and Zarin with 6.83 and 4.83 ton ha-I had the highest and the lowest grain yield. Under un-washing treatment of dust from the leaf grain yield significantly reduced. Under this treatment, Pishgam and Zarin cultivars had the lowest (3%) and the highest (12%) reduction in grain yield respectively. Also, airborne dust significantly reduced grain number per spike and leaf area, soluble protein, greenness’ index, stomatal conductance and temperature in flag leaf of evaluated cultivars. The evidence from this study suggested that, with respect to the high probability of airborne dusts occurrence in Kermanshah in the next years and its negative effects on grain yield and probably on grain quality, perhaps cultivation of Pishgam cultivar in this area is associated with lower risk.

 
Keyword(s): DUST, SHOOT WASHING, SPIKELET, STOMATAL CONDUCTANCE, WHEAT
 
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