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TY - JOUR AU - Mir Naser Seiedi2, Vahid Ashrafi1*, PY - 2010/12/23 Y2 - 2025/09/23 TI - Influence of Different Plant Densities and Plant Growth Promoting Rhizobacteria (PGPR) on Yield and Yield Attributes of Corn (Zea maize L.) JF - Recent Research in Science and Technology JA - RRST VL - 3 IS - 1 SE - Agriculture DO - UR - https://www.updatepublishing.com/journal/index.php/rrst/article/view/566 SP - AB - <p class="MsoNormal" style="text-justify: kashida; text-align: justify; line-height: normal; text-kashida: 0%; text-indent: 0in; margin: 0in 0in 0pt;"><span style="font-size: small;"><span style="font-family: 'Arial Narrow','sans-serif';">In order to study the effects of different plant densities and<span style="color: black;"><span style="mso-spacerun: yes;">  </span>seed priming with plant growth<span style="mso-spacerun: yes;">  </span>promoting<span style="mso-spacerun: yes;">  </span>rhizobacteria (PGPR) on<span style="mso-spacerun: yes;">  </span>yield </span>and yield attributes<span style="mso-spacerun: yes;">  </span>of<span style="mso-spacerun: yes;">  </span></span><span style="font-family: 'Arial Narrow','sans-serif'; color: black; mso-bidi-font-family: 'B Lotus';">corn (<em>Zea maize L</em>.), </span><span style="font-family: 'Arial Narrow','sans-serif';">a factorial experiment based on randomized complete block design with three replications was conducted in 2010 at the Research Farm of Islamic Azad University, Ardabili Branch. Treatments were three densities containing, 7 (D₁), 9 (D₂) and 11 plant m^-2(D₃) plus seed priming with Plant Growth Promoting Rhizobacteria (PGPR) in three levels containing, without inoculation (as control), priming with <em style="mso-bidi-font-style: normal;">Azotobacter chroococcum</em> strain 5 and <em style="mso-bidi-font-style: normal;">Azosprilium lipoferum</em> strain OF. Maize hybrid was SC-404. Results indicated that plant density had significant effects on grain yield, plant height, number of kernels per ear, the number of grain rows and number of grains per ear row. These characteristics had different response to seed priming with PGPR. The highest grain yield obtained from D₂. The highest the number of kernel per ear and the number of grain per ear row recorded at D₁, while D₃ showed the highest values of plant height. The number of grain row did not affected by levels of plant density and seed priming with PGPR. In conclusion, it can be suggested that in order to increase of grain yield<span style="mso-spacerun: yes;">  </span>should be applied 9 plants m^-2in seed priming with<span style="mso-spacerun: yes;">  </span><em style="mso-bidi-font-style: normal;">Azosprilium lipoferum</em> strain OF in<span style="mso-spacerun: yes;">  </span>conditions of<span style="mso-spacerun: yes;">  </span>Ardabil<span style="mso-spacerun: yes;">  </span>Plain.</span></span></p> ER -