Paper Information

Journal:   IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)   2006 , Volume 37-1 , Number 3 (AGRONOMY & CROP BIOTECHNOLOGY); Page(s) 493 To 499.
 
Paper: 

EFFECT OF PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) APPLICATION ON GRAIN YIELD AND SOME TRAITS OF MAIZE (ZEA MAYS L.)

 
 
Author(s):  HAMIDI AIDIN, GHALAVAND A.*, DEHGHAN SHOAR M., MALAKOUTI M.J., CHOUKAN R., ASGHARZADEH A.
 
* FACULTY OF AGRICULTURE, UNIVERSITY OF TARBIAT MODARES
 
Abstract: 

Application of biofertilizers, especially plant growth promoting rhizobacteria (pGPR) plays an important role in sustainable management of agroecosystems, their productivity and yield. In order to study the effect of Azotobacter chroococcum, Azospirillum lipoferum, Azopirillum brasilense and Pseudomonas fluorescens on grain yield of late maturity maize (Zea mays L.) single cross hybrids (SC700,SC 704 and a promising single cross), a factorial field experiment was conducted. Hybrid seeds were either singly inoculated with each bacterium alone or coinoculated by two or three combined bacterial inoculants while no inoculation taken as control. After harvesting the crop ear number, ear length and diameter, grain length, number of grain rows, grain number in rows, ear grain number, 1000 grain weight, grain yield per hectare as well as per plant were determined. Results revealed that treatments did not affect grain length and ear number but increased the three hybrids' grain yield per hectare as well as per plant through increasing the grain yield components. The highest grain yield was achieved by SC700 with seeds coinoculated by the three bacteria.

 
Keyword(s): MAIZE, GRAIN YIELD, PLANT GROWTH PROMOTING RHIZOBACTERIA
 
References: 
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